diff --git a/404.html b/404.html index b2c6a0d..9975cca 100644 --- a/404.html +++ b/404.html @@ -4,13 +4,13 @@ Page Not Found | Brush Stroke Tutorial - - + +
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+ + \ No newline at end of file diff --git a/About/index.html b/About/index.html index afed36a..4c86bb4 100644 --- a/About/index.html +++ b/About/index.html @@ -4,12 +4,12 @@ About | Brush Stroke Tutorial - - + +
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About

Applying for PhD​

I'm looking for PhD opportunities in top US schools to continue my research. +

About

Applying for PhD​

I'm looking for PhD opportunities in top US schools to continue my research. If your lab conducts research in the related topics like Sketching, Digital Painting, HCI or NPR, and has an available PhD position, contact me with my email address 1500013714 (at) pku (dot) edu (dot) cn. Moreover, I would appreciate if you recommend this tutorial to your mentor(s) and collaborator(s).

About the tutorial​

A good CG research work has novelty, while a seminal work also helps other researchers/engineers/artists pursue novelty. @@ -38,7 +38,7 @@ Obviously, I cover tackle all the relevant works individually. That's why during my academic career, I want to guide and inspire more researchers and engineers to work on them. I'm eager to connect with individuals who share these interests.

Copyright © 2023 Brush Stroke Tutorial, under CC BY-SA 4.0 License
- - + + \ No newline at end of file diff --git a/Appendix/Vector-fill/index.html b/Appendix/Vector-fill/index.html index e6f5564..e3fa290 100644 --- a/Appendix/Vector-fill/index.html +++ b/Appendix/Vector-fill/index.html @@ -4,12 +4,12 @@ Pre-introduction to Vector Fill | Brush Stroke Tutorial - - + +
-

Pre-introduction to Vector Fill

You may have learned how to render brush strokes on polyline curves. +

Pre-introduction to Vector Fill

You may have learned how to render brush strokes on polyline curves. If you want to develop a basic paint program like what I did, the next logical step is to learn how to fill color.

VectorFill

Vector fill demo

We've found that filling color is precisely the 2D Arrangement and Point Location problem in computational geometry (plus rendering a polygon). Basically all textbooks about computational geometry cover these problems and the corresponding algorithms to solve them. It's very straightforward how to apply once you've learned about them. @@ -22,8 +22,8 @@ And to locate a query point, a native solution is to iterate through all faces from the mesh and test if the query point is inside.

From an introductory-level textbook, you will learn how to construct a polygon mesh (the arrangement object) from line segments and algorithms to locate a point better than the naive solution. To dive deeper, you may try using the CGAL 2D arrangement library -and learn the arrangement constructed from 2D polylines, which is slightly different with a naive polygon mesh.

I hope the "2D mesh metaphor" will help you better understand the problems and solutions. Wish you happy learning!

Copyright © 2023 Brush Stroke Tutorial, under CC BY-SA 4.0 License
- - +and learn the arrangement constructed from 2D polylines, which is slightly different with a naive polygon mesh.

I hope this "2D mesh metaphor" will help you better understand the problems.

+ + \ No newline at end of file diff --git a/Basics/Vanilla/index.html b/Basics/Vanilla/index.html index ef0fa9e..7cde016 100644 --- a/Basics/Vanilla/index.html +++ b/Basics/Vanilla/index.html @@ -4,13 +4,13 @@ Vanilla | Brush Stroke Tutorial - - + +
-
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- - +
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+ + \ No newline at end of file diff --git a/Introduction/index.html b/Introduction/index.html index a1bae89..2971193 100644 --- a/Introduction/index.html +++ b/Introduction/index.html @@ -4,49 +4,52 @@ Introduction | Brush Stroke Tutorial - - + +
-
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Introduction

This tutorial series will teach you how to use the modern GPU graphics pipeline to render brush strokes on vector curves. +

Introduction

This tutorial series will teach you how to use the modern GPU graphics pipeline to render brush strokes on vector curves. The contents mainly come from my research work Ciallo: The next generation vector paint program. I will introduce this tutorial from the three aspects above.

Modern GPU​

sketchpad

Draw lines in Ivan Sutherland's Sketchpad.

Drawing lines or rendering strokes is one of the oldest topics in Computer Graphics. You can easily find a lot of pioneering works, for example, Bresenham's line algorithm. They emerged from an era with certain conditions:

  • Programs ran without the benefit of parallelization.
  • Programs could access framebuffer directly without significant performance penalty.

But time has changed, now we have modern GPU hardware crafted for graphics and parallel computing, and directly accessing a GPU framebuffer from a CPU can significantly hurt the performance. -So old algorithms may not satisfy your needs for real-time rendering.

In this tutorial, you will learn about the brush stroke rendering (or brush rendering, stroke rendering for abbreviation) -algorithms designed for the GPU graphics pipeline. -We (I and my mentor Liyi-Wei) name these algorithms as Articulated in our paper (mainly because they look like drawing an articulated arm). +So old algorithms may not satisfy your needs for real-time rendering.

In this tutorial, you will learn about the brush stroke rendering algorithms designed for the GPU graphics pipeline. +We (I and my mentor Liyi-Wei) call these algorithms Articulated in our paper, because they look like drawing an articulated arm. I assume our readers are already familiar with a graphics API like OpenGL or D3D. This tutorial will concentrate more on the high-level algorithms than the implementation details.

Although graphics APIs provide us line primitives, including LINES, LINE_STRIP, and LINE_LOOP, there are several well-known issues when using these primitives directly. Check out Matt Deslauries' article Drawing Lines is Hard if you know nothing about them. -As for the brush rendering, the most significant issue is the limitation on the maximum line width or stroke radius. +As for our brush rendering, the most significant issue is the limitation on the maximum line width or stroke radius (half width). We must be able to fully control the radius values when rendering brush strokes.

Brush strokes​

Brush strokes refer to strokes drawn with the paint tool in graphics software such as Photoshop or Krita. Artists configure their digital brushes to control stroke properties like radius or stylization, then stroke on the canvas with dedicated input devices: Tablet and Stylus. -If you're unfamiliar with tablets and styluses, you can watch the video below for more information:

Tablet

While you may recognize a brush stroke by its stylization, another crucial property could be ignored: the mutable (varying) radius along the stroke. +If you're unfamiliar with tablets and styluses, you can watch the video below for more information:

Tablet

While you may recognize a brush stroke by its stylization, another crucial property could be ignored: the variable radius along the stroke. (I ignored it in my paper too.) The radii are typically generated from the pressure values as a stylus presses and moves on a tablet. -For experienced artists after installing a painting program, one of the highest priorities is to configure the mapping function from pen pressure to brush radius.

In this tutorial, you will learn to render a stroke with mutable radius, and the most popular way to stylize it called "Stamp." +For experienced artists after installing a painting program, one of the highest priorities is to configure the mapping function from pen pressure to brush radius.

In this tutorial, you will learn to render a stroke with variable radius, and the most popular way to stylize it called "Stamp." More than 90 percent of brushes in popular paint software are the stamp brushes. Additionally, GPU brush stroke rendering a newly emerged topic. Researchers will develop more novel methods in the future. So I will continuously update this tutorial series to teach them. -Make sure to star our code repository for easy access to the latest updates.

Vector curves​

Mutable radius is imperative for the most artists working on digital painting, -but it's not defined in public vector standards like SVG. +Make sure to star our code repository for easy access to the latest updates.

Vector curves​

Variable radius is imperative for the most artists working on digital painting, +but it's not included in public vector standards like SVG. +And since that, configuring the variable width value of vector lines is commonly underdeveloped in popular graphics design software. This limitation is one of the primary reasons that lots of digital artists don't use vector workflow. -(Another one is filling color.)

To support the mutable radius, we will render a unique type of vector curve: +(Another one is filling color.)

To support the variable radius, we will render a unique type of vector curve: An ordered list of points (polyline) with radius values assigned to each point. As a stylus is pressed and moved on a tablet, the program generate a sequence of points to record the trace of movement. -Additionally, the pen pressure is transformed into the radius value assigned to each point.

We can approximate any type of curve by increasing the number of points in a polyline, whether freehand-drawn or mathematically defined.

Structure​

Although the algorithms are very straightforward, I know how hard it could be to learn and replicate a research work. -That's why I created this tutorial, designed with a smooth learning curve and providing seamless coding environments.

You should start with the Basic part, which covers the basics of the rendering methods. +Additionally, the pen pressure is transformed into the radius value assigned to each point.

We can approximate any type of curve by increasing the number of points in a polyline, whether freehand-drawn or mathematically defined. +Try to change the maxRadius and segmentCount value in the code editor below to see how the stroke changes. +Feel free to change any other parts of the code as long as the function return the position and radius array correctly.

Loading...
code editor & canvas

The development environment is inspired by The Book of Shader. +You can watch the rendering result in real time after modifying the code.

When hovering your mouse on the canvas you can:

  • Pan: Left-click and drag the mouse.
  • Zoom: Scroll or drag the mouse wheel.

If there are bugs for common usages, tell me in the issue page.

Structure​

Although the algorithms are very straightforward, I know how hard it could be to learn and replicate a research work. +That's why I created this tutorial, designed with a smooth learning curve and providing the seamless development environment.

You should start with the Basic part, which covers the basics of the rendering methods. Remember to read the articles in the Basic part in its original order, or you may miss something important. Next, select your favorite topics to learn. -I will list the extra prerequisites at the very beginning of each article.

Wish you happy learning!

Citation​

@inproceedings{Ciallo2023,
    author = {Ciao, Shen and Wei, Li-Yi},
    title = {Ciallo: The next-Generation Vector Paint Program},
    year = {2023},
    isbn = {9798400701436},
    publisher = {Association for Computing Machinery},
    address = {New York, NY, USA},
    url = {https://doi.org/10.1145/3587421.3595418},
    doi = {10.1145/3587421.3595418},
    booktitle = {ACM SIGGRAPH 2023 Talks},
    articleno = {67},
    numpages = {2},
    keywords = {Digital painting, stylized stroke, arrangement, vector graphics. coloring, graphics processing unit (GPU)},
    location = {Los Angeles, CA, USA},
    series = {SIGGRAPH '23}
}
Research Tip

To demonstrate your research work about brush rendering, select vector drawings have mutable radius or pen pressure data. -Regular vector drawing datasets don't contain them.

Copyright © 2023 Brush Stroke Tutorial, under CC BY-SA 4.0 License
- - +I will list extra prerequisites at the very beginning of each article.

Wish you happy learning!

Citation​

@inproceedings{Ciallo2023,
    author = {Ciao, Shen and Wei, Li-Yi},
    title = {Ciallo: The next-Generation Vector Paint Program},
    year = {2023},
    isbn = {9798400701436},
    publisher = {Association for Computing Machinery},
    address = {New York, NY, USA},
    url = {https://doi.org/10.1145/3587421.3595418},
    doi = {10.1145/3587421.3595418},
    booktitle = {ACM SIGGRAPH 2023 Talks},
    articleno = {67},
    numpages = {2},
    keywords = {Digital painting, stylized stroke, arrangement, vector graphics. coloring, graphics processing unit (GPU)},
    location = {Los Angeles, CA, USA},
    series = {SIGGRAPH '23}
}
Research Tip

To demonstrate your research work about brush rendering, select vector drawings have variable radius or pen pressure data. +Regular vector drawing datasets don't contain them.

+ + \ No newline at end of file diff --git a/Tessellation/index.html b/Tessellation/index.html new file mode 100644 index 0000000..be189cb --- /dev/null +++ b/Tessellation/index.html @@ -0,0 +1,19 @@ + + + + + +Tessellation-based Rendering | Brush Stroke Tutorial + + + + +
+
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Tessellation-based Rendering

There were works trying to tessellate a stroke and render it with GPU. +You can find them in several papers and online articles.

Paper and article list

To begin with, I would recommend Rye Terrell's Instanced Line Rendering to learn +several simple tessellation methods. +They may inspire some approaches to optimize the performance of the articulated algorithms.

In this article, I will compare the tessellation-based algorithms with articulated algorithms in detail.

TODO

spoiler

The key benefit of the articulated is its self-overlapping in acute angle, which is critical for brush strokes and digital painting.

+ + + + \ No newline at end of file diff --git a/assets/js/22948d09.a59b789d.js b/assets/js/22948d09.0680017c.js similarity index 94% rename from assets/js/22948d09.a59b789d.js rename to assets/js/22948d09.0680017c.js index ae0953e..5e5d85b 100644 --- a/assets/js/22948d09.a59b789d.js +++ b/assets/js/22948d09.0680017c.js @@ -1 +1 @@ -"use strict";(self.webpackChunkbrush_stroke_tutorial=self.webpackChunkbrush_stroke_tutorial||[]).push([[195],{3905:(e,t,r)=>{r.d(t,{Zo:()=>p,kt:()=>m});var n=r(7294);function o(e,t,r){return t in e?Object.defineProperty(e,t,{value:r,enumerable:!0,configurable:!0,writable:!0}):e[t]=r,e}function i(e,t){var r=Object.keys(e);if(Object.getOwnPropertySymbols){var n=Object.getOwnPropertySymbols(e);t&&(n=n.filter((function(t){return Object.getOwnPropertyDescriptor(e,t).enumerable}))),r.push.apply(r,n)}return r}function a(e){for(var t=1;t=0||(o[r]=e[r]);return o}(e,t);if(Object.getOwnPropertySymbols){var 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reasons",e),t.toDataURL("image/jpeg",.6)):t.toDataURL("image/png")}static sRGBToLinear(e){if("undefined"!=typeof HTMLImageElement&&e instanceof HTMLImageElement||"undefined"!=typeof HTMLCanvasElement&&e instanceof HTMLCanvasElement||"undefined"!=typeof ImageBitmap&&e instanceof ImageBitmap){const t=Ue("canvas");t.width=e.width,t.height=e.height;const n=t.getContext("2d");n.drawImage(e,0,0,e.width,e.height);const i=n.getImageData(0,0,e.width,e.height),r=i.data;for(let e=0;e0&&(n.userData=this.userData),t||(e.textures[this.uuid]=n),n}dispose(){this.dispatchEvent({type:"dispose"})}transformUv(e){if(300!==this.mapping)return e;if(e.applyMatrix3(this.matrix),e.x<0||e.x>1)switch(this.wrapS){case w:e.x=e.x-Math.floor(e.x);break;case R:e.x=e.x<0?0:1;break;case C:1===Math.abs(Math.floor(e.x)%2)?e.x=Math.ceil(e.x)-e.x:e.x=e.x-Math.floor(e.x)}if(e.y<0||e.y>1)switch(this.wrapT){case w:e.y=e.y-Math.floor(e.y);break;case R:e.y=e.y<0?0:1;break;case C:1===Math.abs(Math.floor(e.y)%2)?e.y=Math.ceil(e.y)-e.y:e.y=e.y-Math.floor(e.y)}return this.flipY&&(e.y=1-e.y),e}set needsUpdate(e){!0===e&&(this.version++,this.source.needsUpdate=!0)}get encoding(){return Ne("THREE.Texture: Property .encoding has been replaced by .colorSpace."),this.colorSpace===re?ne:3e3}set encoding(e){Ne("THREE.Texture: Property .encoding has been replaced by .colorSpace."),this.colorSpace=e===ne?re:ie}}Ke.DEFAULT_IMAGE=null,Ke.DEFAULT_MAPPING=300,Ke.DEFAULT_ANISOTROPY=1;class Ze{constructor(e=0,t=0,n=0,i=1){Ze.prototype.isVector4=!0,this.x=e,this.y=t,this.z=n,this.w=i}get width(){return this.z}set width(e){this.z=e}get height(){return this.w}set height(e){this.w=e}set(e,t,n,i){return this.x=e,this.y=t,this.z=n,this.w=i,this}setScalar(e){return this.x=e,this.y=e,this.z=e,this.w=e,this}setX(e){return this.x=e,this}setY(e){return this.y=e,this}setZ(e){return this.z=e,this}setW(e){return this.w=e,this}setComponent(e,t){switch(e){case 0:this.x=t;break;case 1:this.y=t;break;case 2:this.z=t;break;case 3:this.w=t;break;default:throw new Error("index is out of range: "+e)}return this}getComponent(e){switch(e){case 0:return this.x;case 1:return this.y;case 2:return this.z;case 3:return this.w;default:throw new Error("index is out of range: "+e)}}clone(){return new this.constructor(this.x,this.y,this.z,this.w)}copy(e){return this.x=e.x,this.y=e.y,this.z=e.z,this.w=void 0!==e.w?e.w:1,this}add(e){return this.x+=e.x,this.y+=e.y,this.z+=e.z,this.w+=e.w,this}addScalar(e){return this.x+=e,this.y+=e,this.z+=e,this.w+=e,this}addVectors(e,t){return this.x=e.x+t.x,this.y=e.y+t.y,this.z=e.z+t.z,this.w=e.w+t.w,this}addScaledVector(e,t){return this.x+=e.x*t,this.y+=e.y*t,this.z+=e.z*t,this.w+=e.w*t,this}sub(e){return this.x-=e.x,this.y-=e.y,this.z-=e.z,this.w-=e.w,this}subScalar(e){return this.x-=e,this.y-=e,this.z-=e,this.w-=e,this}subVectors(e,t){return this.x=e.x-t.x,this.y=e.y-t.y,this.z=e.z-t.z,this.w=e.w-t.w,this}multiply(e){return this.x*=e.x,this.y*=e.y,this.z*=e.z,this.w*=e.w,this}multiplyScalar(e){return this.x*=e,this.y*=e,this.z*=e,this.w*=e,this}applyMatrix4(e){const t=this.x,n=this.y,i=this.z,r=this.w,a=e.elements;return this.x=a[0]*t+a[4]*n+a[8]*i+a[12]*r,this.y=a[1]*t+a[5]*n+a[9]*i+a[13]*r,this.z=a[2]*t+a[6]*n+a[10]*i+a[14]*r,this.w=a[3]*t+a[7]*n+a[11]*i+a[15]*r,this}divideScalar(e){return this.multiplyScalar(1/e)}setAxisAngleFromQuaternion(e){this.w=2*Math.acos(e.w);const t=Math.sqrt(1-e.w*e.w);return t<1e-4?(this.x=1,this.y=0,this.z=0):(this.x=e.x/t,this.y=e.y/t,this.z=e.z/t),this}setAxisAngleFromRotationMatrix(e){let t,n,i,r;const a=.01,s=.1,o=e.elements,l=o[0],c=o[4],u=o[8],h=o[1],d=o[5],p=o[9],f=o[2],m=o[6],g=o[10];if(Math.abs(c-h)o&&e>_?e_?o=0?1:-1,i=1-t*t;if(i>Number.EPSILON){const r=Math.sqrt(i),a=Math.atan2(r,t*n);e=Math.sin(e*a)/r,s=Math.sin(s*a)/r}const r=s*n;if(o=o*e+h*r,l=l*e+d*r,c=c*e+p*r,u=u*e+f*r,e===1-s){const e=1/Math.sqrt(o*o+l*l+c*c+u*u);o*=e,l*=e,c*=e,u*=e}}e[t]=o,e[t+1]=l,e[t+2]=c,e[t+3]=u}static multiplyQuaternionsFlat(e,t,n,i,r,a){const s=n[i],o=n[i+1],l=n[i+2],c=n[i+3],u=r[a],h=r[a+1],d=r[a+2],p=r[a+3];return e[t]=s*p+c*u+o*d-l*h,e[t+1]=o*p+c*h+l*u-s*d,e[t+2]=l*p+c*d+s*h-o*u,e[t+3]=c*p-s*u-o*h-l*d,e}get x(){return this._x}set x(e){this._x=e,this._onChangeCallback()}get y(){return this._y}set y(e){this._y=e,this._onChangeCallback()}get z(){return this._z}set z(e){this._z=e,this._onChangeCallback()}get w(){return this._w}set w(e){this._w=e,this._onChangeCallback()}set(e,t,n,i){return this._x=e,this._y=t,this._z=n,this._w=i,this._onChangeCallback(),this}clone(){return new this.constructor(this._x,this._y,this._z,this._w)}copy(e){return this._x=e.x,this._y=e.y,this._z=e.z,this._w=e.w,this._onChangeCallback(),this}setFromEuler(e,t){const n=e._x,i=e._y,r=e._z,a=e._order,s=Math.cos,o=Math.sin,l=s(n/2),c=s(i/2),u=s(r/2),h=o(n/2),d=o(i/2),p=o(r/2);switch(a){case"XYZ":this._x=h*c*u+l*d*p,this._y=l*d*u-h*c*p,this._z=l*c*p+h*d*u,this._w=l*c*u-h*d*p;break;case"YXZ":this._x=h*c*u+l*d*p,this._y=l*d*u-h*c*p,this._z=l*c*p-h*d*u,this._w=l*c*u+h*d*p;break;case"ZXY":this._x=h*c*u-l*d*p,this._y=l*d*u+h*c*p,this._z=l*c*p+h*d*u,this._w=l*c*u-h*d*p;break;case"ZYX":this._x=h*c*u-l*d*p,this._y=l*d*u+h*c*p,this._z=l*c*p-h*d*u,this._w=l*c*u+h*d*p;break;case"YZX":this._x=h*c*u+l*d*p,this._y=l*d*u+h*c*p,this._z=l*c*p-h*d*u,this._w=l*c*u-h*d*p;break;case"XZY":this._x=h*c*u-l*d*p,this._y=l*d*u-h*c*p,this._z=l*c*p+h*d*u,this._w=l*c*u+h*d*p;break;default:console.warn("THREE.Quaternion: .setFromEuler() encountered an unknown order: "+a)}return!1!==t&&this._onChangeCallback(),this}setFromAxisAngle(e,t){const n=t/2,i=Math.sin(n);return this._x=e.x*i,this._y=e.y*i,this._z=e.z*i,this._w=Math.cos(n),this._onChangeCallback(),this}setFromRotationMatrix(e){const t=e.elements,n=t[0],i=t[4],r=t[8],a=t[1],s=t[5],o=t[9],l=t[2],c=t[6],u=t[10],h=n+s+u;if(h>0){const e=.5/Math.sqrt(h+1);this._w=.25/e,this._x=(c-o)*e,this._y=(r-l)*e,this._z=(a-i)*e}else if(n>s&&n>u){const e=2*Math.sqrt(1+n-s-u);this._w=(c-o)/e,this._x=.25*e,this._y=(i+a)/e,this._z=(r+l)/e}else if(s>u){const e=2*Math.sqrt(1+s-n-u);this._w=(r-l)/e,this._x=(i+a)/e,this._y=.25*e,this._z=(o+c)/e}else{const e=2*Math.sqrt(1+u-n-s);this._w=(a-i)/e,this._x=(r+l)/e,this._y=(o+c)/e,this._z=.25*e}return this._onChangeCallback(),this}setFromUnitVectors(e,t){let n=e.dot(t)+1;return nMath.abs(e.z)?(this._x=-e.y,this._y=e.x,this._z=0,this._w=n):(this._x=0,this._y=-e.z,this._z=e.y,this._w=n)):(this._x=e.y*t.z-e.z*t.y,this._y=e.z*t.x-e.x*t.z,this._z=e.x*t.y-e.y*t.x,this._w=n),this.normalize()}angleTo(e){return 2*Math.acos(Math.abs(xe(this.dot(e),-1,1)))}rotateTowards(e,t){const n=this.angleTo(e);if(0===n)return this;const i=Math.min(1,t/n);return this.slerp(e,i),this}identity(){return this.set(0,0,0,1)}invert(){return this.conjugate()}conjugate(){return this._x*=-1,this._y*=-1,this._z*=-1,this._onChangeCallback(),this}dot(e){return this._x*e._x+this._y*e._y+this._z*e._z+this._w*e._w}lengthSq(){return this._x*this._x+this._y*this._y+this._z*this._z+this._w*this._w}length(){return Math.sqrt(this._x*this._x+this._y*this._y+this._z*this._z+this._w*this._w)}normalize(){let e=this.length();return 0===e?(this._x=0,this._y=0,this._z=0,this._w=1):(e=1/e,this._x=this._x*e,this._y=this._y*e,this._z=this._z*e,this._w=this._w*e),this._onChangeCallback(),this}multiply(e){return this.multiplyQuaternions(this,e)}premultiply(e){return this.multiplyQuaternions(e,this)}multiplyQuaternions(e,t){const n=e._x,i=e._y,r=e._z,a=e._w,s=t._x,o=t._y,l=t._z,c=t._w;return this._x=n*c+a*s+i*l-r*o,this._y=i*c+a*o+r*s-n*l,this._z=r*c+a*l+n*o-i*s,this._w=a*c-n*s-i*o-r*l,this._onChangeCallback(),this}slerp(e,t){if(0===t)return this;if(1===t)return this.copy(e);const n=this._x,i=this._y,r=this._z,a=this._w;let s=a*e._w+n*e._x+i*e._y+r*e._z;if(s<0?(this._w=-e._w,this._x=-e._x,this._y=-e._y,this._z=-e._z,s=-s):this.copy(e),s>=1)return this._w=a,this._x=n,this._y=i,this._z=r,this;const o=1-s*s;if(o<=Number.EPSILON){const e=1-t;return this._w=e*a+t*this._w,this._x=e*n+t*this._x,this._y=e*i+t*this._y,this._z=e*r+t*this._z,this.normalize(),this._onChangeCallback(),this}const l=Math.sqrt(o),c=Math.atan2(l,s),u=Math.sin((1-t)*c)/l,h=Math.sin(t*c)/l;return this._w=a*u+this._w*h,this._x=n*u+this._x*h,this._y=i*u+this._y*h,this._z=r*u+this._z*h,this._onChangeCallback(),this}slerpQuaternions(e,t,n){return this.copy(e).slerp(t,n)}random(){const e=Math.random(),t=Math.sqrt(1-e),n=Math.sqrt(e),i=2*Math.PI*Math.random(),r=2*Math.PI*Math.random();return this.set(t*Math.cos(i),n*Math.sin(r),n*Math.cos(r),t*Math.sin(i))}equals(e){return e._x===this._x&&e._y===this._y&&e._z===this._z&&e._w===this._w}fromArray(e,t=0){return this._x=e[t],this._y=e[t+1],this._z=e[t+2],this._w=e[t+3],this._onChangeCallback(),this}toArray(e=[],t=0){return e[t]=this._x,e[t+1]=this._y,e[t+2]=this._z,e[t+3]=this._w,e}fromBufferAttribute(e,t){return this._x=e.getX(t),this._y=e.getY(t),this._z=e.getZ(t),this._w=e.getW(t),this}toJSON(){return this.toArray()}_onChange(e){return this._onChangeCallback=e,this}_onChangeCallback(){}*[Symbol.iterator](){yield this._x,yield this._y,yield this._z,yield this._w}}class nt{constructor(e=0,t=0,n=0){nt.prototype.isVector3=!0,this.x=e,this.y=t,this.z=n}set(e,t,n){return void 0===n&&(n=this.z),this.x=e,this.y=t,this.z=n,this}setScalar(e){return this.x=e,this.y=e,this.z=e,this}setX(e){return this.x=e,this}setY(e){return this.y=e,this}setZ(e){return this.z=e,this}setComponent(e,t){switch(e){case 0:this.x=t;break;case 1:this.y=t;break;case 2:this.z=t;break;default:throw new Error("index is out of range: "+e)}return this}getComponent(e){switch(e){case 0:return this.x;case 1:return this.y;case 2:return this.z;default:throw new Error("index is out of range: "+e)}}clone(){return new this.constructor(this.x,this.y,this.z)}copy(e){return this.x=e.x,this.y=e.y,this.z=e.z,this}add(e){return this.x+=e.x,this.y+=e.y,this.z+=e.z,this}addScalar(e){return this.x+=e,this.y+=e,this.z+=e,this}addVectors(e,t){return this.x=e.x+t.x,this.y=e.y+t.y,this.z=e.z+t.z,this}addScaledVector(e,t){return this.x+=e.x*t,this.y+=e.y*t,this.z+=e.z*t,this}sub(e){return this.x-=e.x,this.y-=e.y,this.z-=e.z,this}subScalar(e){return this.x-=e,this.y-=e,this.z-=e,this}subVectors(e,t){return this.x=e.x-t.x,this.y=e.y-t.y,this.z=e.z-t.z,this}multiply(e){return this.x*=e.x,this.y*=e.y,this.z*=e.z,this}multiplyScalar(e){return this.x*=e,this.y*=e,this.z*=e,this}multiplyVectors(e,t){return this.x=e.x*t.x,this.y=e.y*t.y,this.z=e.z*t.z,this}applyEuler(e){return this.applyQuaternion(rt.setFromEuler(e))}applyAxisAngle(e,t){return this.applyQuaternion(rt.setFromAxisAngle(e,t))}applyMatrix3(e){const t=this.x,n=this.y,i=this.z,r=e.elements;return this.x=r[0]*t+r[3]*n+r[6]*i,this.y=r[1]*t+r[4]*n+r[7]*i,this.z=r[2]*t+r[5]*n+r[8]*i,this}applyNormalMatrix(e){return this.applyMatrix3(e).normalize()}applyMatrix4(e){const t=this.x,n=this.y,i=this.z,r=e.elements,a=1/(r[3]*t+r[7]*n+r[11]*i+r[15]);return this.x=(r[0]*t+r[4]*n+r[8]*i+r[12])*a,this.y=(r[1]*t+r[5]*n+r[9]*i+r[13])*a,this.z=(r[2]*t+r[6]*n+r[10]*i+r[14])*a,this}applyQuaternion(e){const t=this.x,n=this.y,i=this.z,r=e.x,a=e.y,s=e.z,o=e.w,l=o*t+a*i-s*n,c=o*n+s*t-r*i,u=o*i+r*n-a*t,h=-r*t-a*n-s*i;return this.x=l*o+h*-r+c*-s-u*-a,this.y=c*o+h*-a+u*-r-l*-s,this.z=u*o+h*-s+l*-a-c*-r,this}project(e){return this.applyMatrix4(e.matrixWorldInverse).applyMatrix4(e.projectionMatrix)}unproject(e){return this.applyMatrix4(e.projectionMatrixInverse).applyMatrix4(e.matrixWorld)}transformDirection(e){const t=this.x,n=this.y,i=this.z,r=e.elements;return this.x=r[0]*t+r[4]*n+r[8]*i,this.y=r[1]*t+r[5]*n+r[9]*i,this.z=r[2]*t+r[6]*n+r[10]*i,this.normalize()}divide(e){return this.x/=e.x,this.y/=e.y,this.z/=e.z,this}divideScalar(e){return this.multiplyScalar(1/e)}min(e){return this.x=Math.min(this.x,e.x),this.y=Math.min(this.y,e.y),this.z=Math.min(this.z,e.z),this}max(e){return this.x=Math.max(this.x,e.x),this.y=Math.max(this.y,e.y),this.z=Math.max(this.z,e.z),this}clamp(e,t){return this.x=Math.max(e.x,Math.min(t.x,this.x)),this.y=Math.max(e.y,Math.min(t.y,this.y)),this.z=Math.max(e.z,Math.min(t.z,this.z)),this}clampScalar(e,t){return this.x=Math.max(e,Math.min(t,this.x)),this.y=Math.max(e,Math.min(t,this.y)),this.z=Math.max(e,Math.min(t,this.z)),this}clampLength(e,t){const n=this.length();return this.divideScalar(n||1).multiplyScalar(Math.max(e,Math.min(t,n)))}floor(){return this.x=Math.floor(this.x),this.y=Math.floor(this.y),this.z=Math.floor(this.z),this}ceil(){return this.x=Math.ceil(this.x),this.y=Math.ceil(this.y),this.z=Math.ceil(this.z),this}round(){return this.x=Math.round(this.x),this.y=Math.round(this.y),this.z=Math.round(this.z),this}roundToZero(){return this.x=Math.trunc(this.x),this.y=Math.trunc(this.y),this.z=Math.trunc(this.z),this}negate(){return this.x=-this.x,this.y=-this.y,this.z=-this.z,this}dot(e){return this.x*e.x+this.y*e.y+this.z*e.z}lengthSq(){return this.x*this.x+this.y*this.y+this.z*this.z}length(){return Math.sqrt(this.x*this.x+this.y*this.y+this.z*this.z)}manhattanLength(){return Math.abs(this.x)+Math.abs(this.y)+Math.abs(this.z)}normalize(){return this.divideScalar(this.length()||1)}setLength(e){return this.normalize().multiplyScalar(e)}lerp(e,t){return this.x+=(e.x-this.x)*t,this.y+=(e.y-this.y)*t,this.z+=(e.z-this.z)*t,this}lerpVectors(e,t,n){return this.x=e.x+(t.x-e.x)*n,this.y=e.y+(t.y-e.y)*n,this.z=e.z+(t.z-e.z)*n,this}cross(e){return this.crossVectors(this,e)}crossVectors(e,t){const n=e.x,i=e.y,r=e.z,a=t.x,s=t.y,o=t.z;return this.x=i*o-r*s,this.y=r*a-n*o,this.z=n*s-i*a,this}projectOnVector(e){const t=e.lengthSq();if(0===t)return this.set(0,0,0);const n=e.dot(this)/t;return this.copy(e).multiplyScalar(n)}projectOnPlane(e){return it.copy(this).projectOnVector(e),this.sub(it)}reflect(e){return this.sub(it.copy(e).multiplyScalar(2*this.dot(e)))}angleTo(e){const t=Math.sqrt(this.lengthSq()*e.lengthSq());if(0===t)return Math.PI/2;const n=this.dot(e)/t;return Math.acos(xe(n,-1,1))}distanceTo(e){return Math.sqrt(this.distanceToSquared(e))}distanceToSquared(e){const t=this.x-e.x,n=this.y-e.y,i=this.z-e.z;return t*t+n*n+i*i}manhattanDistanceTo(e){return Math.abs(this.x-e.x)+Math.abs(this.y-e.y)+Math.abs(this.z-e.z)}setFromSpherical(e){return this.setFromSphericalCoords(e.radius,e.phi,e.theta)}setFromSphericalCoords(e,t,n){const i=Math.sin(t)*e;return this.x=i*Math.sin(n),this.y=Math.cos(t)*e,this.z=i*Math.cos(n),this}setFromCylindrical(e){return this.setFromCylindricalCoords(e.radius,e.theta,e.y)}setFromCylindricalCoords(e,t,n){return this.x=e*Math.sin(t),this.y=n,this.z=e*Math.cos(t),this}setFromMatrixPosition(e){const t=e.elements;return this.x=t[12],this.y=t[13],this.z=t[14],this}setFromMatrixScale(e){const t=this.setFromMatrixColumn(e,0).length(),n=this.setFromMatrixColumn(e,1).length(),i=this.setFromMatrixColumn(e,2).length();return this.x=t,this.y=n,this.z=i,this}setFromMatrixColumn(e,t){return this.fromArray(e.elements,4*t)}setFromMatrix3Column(e,t){return this.fromArray(e.elements,3*t)}setFromEuler(e){return this.x=e._x,this.y=e._y,this.z=e._z,this}setFromColor(e){return this.x=e.r,this.y=e.g,this.z=e.b,this}equals(e){return e.x===this.x&&e.y===this.y&&e.z===this.z}fromArray(e,t=0){return this.x=e[t],this.y=e[t+1],this.z=e[t+2],this}toArray(e=[],t=0){return e[t]=this.x,e[t+1]=this.y,e[t+2]=this.z,e}fromBufferAttribute(e,t){return this.x=e.getX(t),this.y=e.getY(t),this.z=e.getZ(t),this}random(){return this.x=Math.random(),this.y=Math.random(),this.z=Math.random(),this}randomDirection(){const e=2*(Math.random()-.5),t=Math.random()*Math.PI*2,n=Math.sqrt(1-e**2);return this.x=n*Math.cos(t),this.y=n*Math.sin(t),this.z=e,this}*[Symbol.iterator](){yield this.x,yield this.y,yield this.z}}const it=new nt,rt=new tt;class at{constructor(e=new nt(1/0,1/0,1/0),t=new nt(-1/0,-1/0,-1/0)){this.isBox3=!0,this.min=e,this.max=t}set(e,t){return this.min.copy(e),this.max.copy(t),this}setFromArray(e){this.makeEmpty();for(let t=0,n=e.length;tthis.max.x||e.ythis.max.y||e.zthis.max.z)}containsBox(e){return this.min.x<=e.min.x&&e.max.x<=this.max.x&&this.min.y<=e.min.y&&e.max.y<=this.max.y&&this.min.z<=e.min.z&&e.max.z<=this.max.z}getParameter(e,t){return t.set((e.x-this.min.x)/(this.max.x-this.min.x),(e.y-this.min.y)/(this.max.y-this.min.y),(e.z-this.min.z)/(this.max.z-this.min.z))}intersectsBox(e){return!(e.max.xthis.max.x||e.max.ythis.max.y||e.max.zthis.max.z)}intersectsSphere(e){return this.clampPoint(e.center,ot),ot.distanceToSquared(e.center)<=e.radius*e.radius}intersectsPlane(e){let t,n;return e.normal.x>0?(t=e.normal.x*this.min.x,n=e.normal.x*this.max.x):(t=e.normal.x*this.max.x,n=e.normal.x*this.min.x),e.normal.y>0?(t+=e.normal.y*this.min.y,n+=e.normal.y*this.max.y):(t+=e.normal.y*this.max.y,n+=e.normal.y*this.min.y),e.normal.z>0?(t+=e.normal.z*this.min.z,n+=e.normal.z*this.max.z):(t+=e.normal.z*this.max.z,n+=e.normal.z*this.min.z),t<=-e.constant&&n>=-e.constant}intersectsTriangle(e){if(this.isEmpty())return!1;this.getCenter(mt),gt.subVectors(this.max,mt),ct.subVectors(e.a,mt),ut.subVectors(e.b,mt),ht.subVectors(e.c,mt),dt.subVectors(ut,ct),pt.subVectors(ht,ut),ft.subVectors(ct,ht);let t=[0,-dt.z,dt.y,0,-pt.z,pt.y,0,-ft.z,ft.y,dt.z,0,-dt.x,pt.z,0,-pt.x,ft.z,0,-ft.x,-dt.y,dt.x,0,-pt.y,pt.x,0,-ft.y,ft.x,0];return!!xt(t,ct,ut,ht,gt)&&(t=[1,0,0,0,1,0,0,0,1],!!xt(t,ct,ut,ht,gt)&&(_t.crossVectors(dt,pt),t=[_t.x,_t.y,_t.z],xt(t,ct,ut,ht,gt)))}clampPoint(e,t){return t.copy(e).clamp(this.min,this.max)}distanceToPoint(e){return this.clampPoint(e,ot).distanceTo(e)}getBoundingSphere(e){return this.isEmpty()?e.makeEmpty():(this.getCenter(e.center),e.radius=.5*this.getSize(ot).length()),e}intersect(e){return this.min.max(e.min),this.max.min(e.max),this.isEmpty()&&this.makeEmpty(),this}union(e){return this.min.min(e.min),this.max.max(e.max),this}applyMatrix4(e){return this.isEmpty()||(st[0].set(this.min.x,this.min.y,this.min.z).applyMatrix4(e),st[1].set(this.min.x,this.min.y,this.max.z).applyMatrix4(e),st[2].set(this.min.x,this.max.y,this.min.z).applyMatrix4(e),st[3].set(this.min.x,this.max.y,this.max.z).applyMatrix4(e),st[4].set(this.max.x,this.min.y,this.min.z).applyMatrix4(e),st[5].set(this.max.x,this.min.y,this.max.z).applyMatrix4(e),st[6].set(this.max.x,this.max.y,this.min.z).applyMatrix4(e),st[7].set(this.max.x,this.max.y,this.max.z).applyMatrix4(e),this.setFromPoints(st)),this}translate(e){return this.min.add(e),this.max.add(e),this}equals(e){return e.min.equals(this.min)&&e.max.equals(this.max)}}const st=[new nt,new nt,new nt,new nt,new nt,new nt,new nt,new nt],ot=new nt,lt=new at,ct=new nt,ut=new nt,ht=new nt,dt=new nt,pt=new nt,ft=new nt,mt=new nt,gt=new nt,_t=new nt,vt=new nt;function xt(e,t,n,i,r){for(let a=0,s=e.length-3;a<=s;a+=3){vt.fromArray(e,a);const s=r.x*Math.abs(vt.x)+r.y*Math.abs(vt.y)+r.z*Math.abs(vt.z),o=t.dot(vt),l=n.dot(vt),c=i.dot(vt);if(Math.max(-Math.max(o,l,c),Math.min(o,l,c))>s)return!1}return!0}const Mt=new at,yt=new nt,Et=new nt;class St{constructor(e=new nt,t=-1){this.center=e,this.radius=t}set(e,t){return this.center.copy(e),this.radius=t,this}setFromPoints(e,t){const n=this.center;void 0!==t?n.copy(t):Mt.setFromPoints(e).getCenter(n);let i=0;for(let r=0,a=e.length;rthis.radius*this.radius&&(t.sub(this.center).normalize(),t.multiplyScalar(this.radius).add(this.center)),t}getBoundingBox(e){return this.isEmpty()?(e.makeEmpty(),e):(e.set(this.center,this.center),e.expandByScalar(this.radius),e)}applyMatrix4(e){return this.center.applyMatrix4(e),this.radius=this.radius*e.getMaxScaleOnAxis(),this}translate(e){return this.center.add(e),this}expandByPoint(e){if(this.isEmpty())return this.center.copy(e),this.radius=0,this;yt.subVectors(e,this.center);const t=yt.lengthSq();if(t>this.radius*this.radius){const e=Math.sqrt(t),n=.5*(e-this.radius);this.center.addScaledVector(yt,n/e),this.radius+=n}return this}union(e){return e.isEmpty()?this:this.isEmpty()?(this.copy(e),this):(!0===this.center.equals(e.center)?this.radius=Math.max(this.radius,e.radius):(Et.subVectors(e.center,this.center).setLength(e.radius),this.expandByPoint(yt.copy(e.center).add(Et)),this.expandByPoint(yt.copy(e.center).sub(Et))),this)}equals(e){return e.center.equals(this.center)&&e.radius===this.radius}clone(){return(new this.constructor).copy(this)}}const Tt=new nt,bt=new nt,At=new nt,wt=new nt,Rt=new nt,Ct=new nt,Lt=new nt;class Pt{constructor(e=new nt,t=new nt(0,0,-1)){this.origin=e,this.direction=t}set(e,t){return this.origin.copy(e),this.direction.copy(t),this}copy(e){return this.origin.copy(e.origin),this.direction.copy(e.direction),this}at(e,t){return t.copy(this.origin).addScaledVector(this.direction,e)}lookAt(e){return this.direction.copy(e).sub(this.origin).normalize(),this}recast(e){return this.origin.copy(this.at(e,Tt)),this}closestPointToPoint(e,t){t.subVectors(e,this.origin);const n=t.dot(this.direction);return n<0?t.copy(this.origin):t.copy(this.origin).addScaledVector(this.direction,n)}distanceToPoint(e){return Math.sqrt(this.distanceSqToPoint(e))}distanceSqToPoint(e){const t=Tt.subVectors(e,this.origin).dot(this.direction);return t<0?this.origin.distanceToSquared(e):(Tt.copy(this.origin).addScaledVector(this.direction,t),Tt.distanceToSquared(e))}distanceSqToSegment(e,t,n,i){bt.copy(e).add(t).multiplyScalar(.5),At.copy(t).sub(e).normalize(),wt.copy(this.origin).sub(bt);const r=.5*e.distanceTo(t),a=-this.direction.dot(At),s=wt.dot(this.direction),o=-wt.dot(At),l=wt.lengthSq(),c=Math.abs(1-a*a);let u,h,d,p;if(c>0)if(u=a*o-s,h=a*s-o,p=r*c,u>=0)if(h>=-p)if(h<=p){const e=1/c;u*=e,h*=e,d=u*(u+a*h+2*s)+h*(a*u+h+2*o)+l}else h=r,u=Math.max(0,-(a*h+s)),d=-u*u+h*(h+2*o)+l;else h=-r,u=Math.max(0,-(a*h+s)),d=-u*u+h*(h+2*o)+l;else h<=-p?(u=Math.max(0,-(-a*r+s)),h=u>0?-r:Math.min(Math.max(-r,-o),r),d=-u*u+h*(h+2*o)+l):h<=p?(u=0,h=Math.min(Math.max(-r,-o),r),d=h*(h+2*o)+l):(u=Math.max(0,-(a*r+s)),h=u>0?r:Math.min(Math.max(-r,-o),r),d=-u*u+h*(h+2*o)+l);else h=a>0?-r:r,u=Math.max(0,-(a*h+s)),d=-u*u+h*(h+2*o)+l;return n&&n.copy(this.origin).addScaledVector(this.direction,u),i&&i.copy(bt).addScaledVector(At,h),d}intersectSphere(e,t){Tt.subVectors(e.center,this.origin);const n=Tt.dot(this.direction),i=Tt.dot(Tt)-n*n,r=e.radius*e.radius;if(i>r)return null;const a=Math.sqrt(r-i),s=n-a,o=n+a;return o<0?null:s<0?this.at(o,t):this.at(s,t)}intersectsSphere(e){return this.distanceSqToPoint(e.center)<=e.radius*e.radius}distanceToPlane(e){const t=e.normal.dot(this.direction);if(0===t)return 0===e.distanceToPoint(this.origin)?0:null;const n=-(this.origin.dot(e.normal)+e.constant)/t;return n>=0?n:null}intersectPlane(e,t){const n=this.distanceToPlane(e);return null===n?null:this.at(n,t)}intersectsPlane(e){const t=e.distanceToPoint(this.origin);if(0===t)return!0;return e.normal.dot(this.direction)*t<0}intersectBox(e,t){let n,i,r,a,s,o;const l=1/this.direction.x,c=1/this.direction.y,u=1/this.direction.z,h=this.origin;return l>=0?(n=(e.min.x-h.x)*l,i=(e.max.x-h.x)*l):(n=(e.max.x-h.x)*l,i=(e.min.x-h.x)*l),c>=0?(r=(e.min.y-h.y)*c,a=(e.max.y-h.y)*c):(r=(e.max.y-h.y)*c,a=(e.min.y-h.y)*c),n>a||r>i?null:((r>n||isNaN(n))&&(n=r),(a=0?(s=(e.min.z-h.z)*u,o=(e.max.z-h.z)*u):(s=(e.max.z-h.z)*u,o=(e.min.z-h.z)*u),n>o||s>i?null:((s>n||n!=n)&&(n=s),(o=0?n:i,t)))}intersectsBox(e){return null!==this.intersectBox(e,Tt)}intersectTriangle(e,t,n,i,r){Rt.subVectors(t,e),Ct.subVectors(n,e),Lt.crossVectors(Rt,Ct);let a,s=this.direction.dot(Lt);if(s>0){if(i)return null;a=1}else{if(!(s<0))return null;a=-1,s=-s}wt.subVectors(this.origin,e);const o=a*this.direction.dot(Ct.crossVectors(wt,Ct));if(o<0)return null;const l=a*this.direction.dot(Rt.cross(wt));if(l<0)return null;if(o+l>s)return null;const c=-a*wt.dot(Lt);return c<0?null:this.at(c/s,r)}applyMatrix4(e){return this.origin.applyMatrix4(e),this.direction.transformDirection(e),this}equals(e){return e.origin.equals(this.origin)&&e.direction.equals(this.direction)}clone(){return(new this.constructor).copy(this)}}class Ut{constructor(e,t,n,i,r,a,s,o,l,c,u,h,d,p,f,m){Ut.prototype.isMatrix4=!0,this.elements=[1,0,0,0,0,1,0,0,0,0,1,0,0,0,0,1],void 0!==e&&this.set(e,t,n,i,r,a,s,o,l,c,u,h,d,p,f,m)}set(e,t,n,i,r,a,s,o,l,c,u,h,d,p,f,m){const g=this.elements;return g[0]=e,g[4]=t,g[8]=n,g[12]=i,g[1]=r,g[5]=a,g[9]=s,g[13]=o,g[2]=l,g[6]=c,g[10]=u,g[14]=h,g[3]=d,g[7]=p,g[11]=f,g[15]=m,this}identity(){return this.set(1,0,0,0,0,1,0,0,0,0,1,0,0,0,0,1),this}clone(){return(new Ut).fromArray(this.elements)}copy(e){const t=this.elements,n=e.elements;return t[0]=n[0],t[1]=n[1],t[2]=n[2],t[3]=n[3],t[4]=n[4],t[5]=n[5],t[6]=n[6],t[7]=n[7],t[8]=n[8],t[9]=n[9],t[10]=n[10],t[11]=n[11],t[12]=n[12],t[13]=n[13],t[14]=n[14],t[15]=n[15],this}copyPosition(e){const t=this.elements,n=e.elements;return t[12]=n[12],t[13]=n[13],t[14]=n[14],this}setFromMatrix3(e){const t=e.elements;return this.set(t[0],t[3],t[6],0,t[1],t[4],t[7],0,t[2],t[5],t[8],0,0,0,0,1),this}extractBasis(e,t,n){return e.setFromMatrixColumn(this,0),t.setFromMatrixColumn(this,1),n.setFromMatrixColumn(this,2),this}makeBasis(e,t,n){return this.set(e.x,t.x,n.x,0,e.y,t.y,n.y,0,e.z,t.z,n.z,0,0,0,0,1),this}extractRotation(e){const t=this.elements,n=e.elements,i=1/Dt.setFromMatrixColumn(e,0).length(),r=1/Dt.setFromMatrixColumn(e,1).length(),a=1/Dt.setFromMatrixColumn(e,2).length();return t[0]=n[0]*i,t[1]=n[1]*i,t[2]=n[2]*i,t[3]=0,t[4]=n[4]*r,t[5]=n[5]*r,t[6]=n[6]*r,t[7]=0,t[8]=n[8]*a,t[9]=n[9]*a,t[10]=n[10]*a,t[11]=0,t[12]=0,t[13]=0,t[14]=0,t[15]=1,this}makeRotationFromEuler(e){const t=this.elements,n=e.x,i=e.y,r=e.z,a=Math.cos(n),s=Math.sin(n),o=Math.cos(i),l=Math.sin(i),c=Math.cos(r),u=Math.sin(r);if("XYZ"===e.order){const e=a*c,n=a*u,i=s*c,r=s*u;t[0]=o*c,t[4]=-o*u,t[8]=l,t[1]=n+i*l,t[5]=e-r*l,t[9]=-s*o,t[2]=r-e*l,t[6]=i+n*l,t[10]=a*o}else if("YXZ"===e.order){const e=o*c,n=o*u,i=l*c,r=l*u;t[0]=e+r*s,t[4]=i*s-n,t[8]=a*l,t[1]=a*u,t[5]=a*c,t[9]=-s,t[2]=n*s-i,t[6]=r+e*s,t[10]=a*o}else if("ZXY"===e.order){const e=o*c,n=o*u,i=l*c,r=l*u;t[0]=e-r*s,t[4]=-a*u,t[8]=i+n*s,t[1]=n+i*s,t[5]=a*c,t[9]=r-e*s,t[2]=-a*l,t[6]=s,t[10]=a*o}else if("ZYX"===e.order){const e=a*c,n=a*u,i=s*c,r=s*u;t[0]=o*c,t[4]=i*l-n,t[8]=e*l+r,t[1]=o*u,t[5]=r*l+e,t[9]=n*l-i,t[2]=-l,t[6]=s*o,t[10]=a*o}else if("YZX"===e.order){const e=a*o,n=a*l,i=s*o,r=s*l;t[0]=o*c,t[4]=r-e*u,t[8]=i*u+n,t[1]=u,t[5]=a*c,t[9]=-s*c,t[2]=-l*c,t[6]=n*u+i,t[10]=e-r*u}else if("XZY"===e.order){const e=a*o,n=a*l,i=s*o,r=s*l;t[0]=o*c,t[4]=-u,t[8]=l*c,t[1]=e*u+r,t[5]=a*c,t[9]=n*u-i,t[2]=i*u-n,t[6]=s*c,t[10]=r*u+e}return t[3]=0,t[7]=0,t[11]=0,t[12]=0,t[13]=0,t[14]=0,t[15]=1,this}makeRotationFromQuaternion(e){return this.compose(Nt,e,Ot)}lookAt(e,t,n){const i=this.elements;return zt.subVectors(e,t),0===zt.lengthSq()&&(zt.z=1),zt.normalize(),Ft.crossVectors(n,zt),0===Ft.lengthSq()&&(1===Math.abs(n.z)?zt.x+=1e-4:zt.z+=1e-4,zt.normalize(),Ft.crossVectors(n,zt)),Ft.normalize(),Bt.crossVectors(zt,Ft),i[0]=Ft.x,i[4]=Bt.x,i[8]=zt.x,i[1]=Ft.y,i[5]=Bt.y,i[9]=zt.y,i[2]=Ft.z,i[6]=Bt.z,i[10]=zt.z,this}multiply(e){return this.multiplyMatrices(this,e)}premultiply(e){return this.multiplyMatrices(e,this)}multiplyMatrices(e,t){const n=e.elements,i=t.elements,r=this.elements,a=n[0],s=n[4],o=n[8],l=n[12],c=n[1],u=n[5],h=n[9],d=n[13],p=n[2],f=n[6],m=n[10],g=n[14],_=n[3],v=n[7],x=n[11],M=n[15],y=i[0],E=i[4],S=i[8],T=i[12],b=i[1],A=i[5],w=i[9],R=i[13],C=i[2],L=i[6],P=i[10],U=i[14],D=i[3],I=i[7],N=i[11],O=i[15];return r[0]=a*y+s*b+o*C+l*D,r[4]=a*E+s*A+o*L+l*I,r[8]=a*S+s*w+o*P+l*N,r[12]=a*T+s*R+o*U+l*O,r[1]=c*y+u*b+h*C+d*D,r[5]=c*E+u*A+h*L+d*I,r[9]=c*S+u*w+h*P+d*N,r[13]=c*T+u*R+h*U+d*O,r[2]=p*y+f*b+m*C+g*D,r[6]=p*E+f*A+m*L+g*I,r[10]=p*S+f*w+m*P+g*N,r[14]=p*T+f*R+m*U+g*O,r[3]=_*y+v*b+x*C+M*D,r[7]=_*E+v*A+x*L+M*I,r[11]=_*S+v*w+x*P+M*N,r[15]=_*T+v*R+x*U+M*O,this}multiplyScalar(e){const t=this.elements;return t[0]*=e,t[4]*=e,t[8]*=e,t[12]*=e,t[1]*=e,t[5]*=e,t[9]*=e,t[13]*=e,t[2]*=e,t[6]*=e,t[10]*=e,t[14]*=e,t[3]*=e,t[7]*=e,t[11]*=e,t[15]*=e,this}determinant(){const e=this.elements,t=e[0],n=e[4],i=e[8],r=e[12],a=e[1],s=e[5],o=e[9],l=e[13],c=e[2],u=e[6],h=e[10],d=e[14];return e[3]*(+r*o*u-i*l*u-r*s*h+n*l*h+i*s*d-n*o*d)+e[7]*(+t*o*d-t*l*h+r*a*h-i*a*d+i*l*c-r*o*c)+e[11]*(+t*l*u-t*s*d-r*a*u+n*a*d+r*s*c-n*l*c)+e[15]*(-i*s*c-t*o*u+t*s*h+i*a*u-n*a*h+n*o*c)}transpose(){const e=this.elements;let t;return t=e[1],e[1]=e[4],e[4]=t,t=e[2],e[2]=e[8],e[8]=t,t=e[6],e[6]=e[9],e[9]=t,t=e[3],e[3]=e[12],e[12]=t,t=e[7],e[7]=e[13],e[13]=t,t=e[11],e[11]=e[14],e[14]=t,this}setPosition(e,t,n){const i=this.elements;return e.isVector3?(i[12]=e.x,i[13]=e.y,i[14]=e.z):(i[12]=e,i[13]=t,i[14]=n),this}invert(){const e=this.elements,t=e[0],n=e[1],i=e[2],r=e[3],a=e[4],s=e[5],o=e[6],l=e[7],c=e[8],u=e[9],h=e[10],d=e[11],p=e[12],f=e[13],m=e[14],g=e[15],_=u*m*l-f*h*l+f*o*d-s*m*d-u*o*g+s*h*g,v=p*h*l-c*m*l-p*o*d+a*m*d+c*o*g-a*h*g,x=c*f*l-p*u*l+p*s*d-a*f*d-c*s*g+a*u*g,M=p*u*o-c*f*o-p*s*h+a*f*h+c*s*m-a*u*m,y=t*_+n*v+i*x+r*M;if(0===y)return this.set(0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0);const E=1/y;return e[0]=_*E,e[1]=(f*h*r-u*m*r-f*i*d+n*m*d+u*i*g-n*h*g)*E,e[2]=(s*m*r-f*o*r+f*i*l-n*m*l-s*i*g+n*o*g)*E,e[3]=(u*o*r-s*h*r-u*i*l+n*h*l+s*i*d-n*o*d)*E,e[4]=v*E,e[5]=(c*m*r-p*h*r+p*i*d-t*m*d-c*i*g+t*h*g)*E,e[6]=(p*o*r-a*m*r-p*i*l+t*m*l+a*i*g-t*o*g)*E,e[7]=(a*h*r-c*o*r+c*i*l-t*h*l-a*i*d+t*o*d)*E,e[8]=x*E,e[9]=(p*u*r-c*f*r-p*n*d+t*f*d+c*n*g-t*u*g)*E,e[10]=(a*f*r-p*s*r+p*n*l-t*f*l-a*n*g+t*s*g)*E,e[11]=(c*s*r-a*u*r-c*n*l+t*u*l+a*n*d-t*s*d)*E,e[12]=M*E,e[13]=(c*f*i-p*u*i+p*n*h-t*f*h-c*n*m+t*u*m)*E,e[14]=(p*s*i-a*f*i-p*n*o+t*f*o+a*n*m-t*s*m)*E,e[15]=(a*u*i-c*s*i+c*n*o-t*u*o-a*n*h+t*s*h)*E,this}scale(e){const t=this.elements,n=e.x,i=e.y,r=e.z;return t[0]*=n,t[4]*=i,t[8]*=r,t[1]*=n,t[5]*=i,t[9]*=r,t[2]*=n,t[6]*=i,t[10]*=r,t[3]*=n,t[7]*=i,t[11]*=r,this}getMaxScaleOnAxis(){const e=this.elements,t=e[0]*e[0]+e[1]*e[1]+e[2]*e[2],n=e[4]*e[4]+e[5]*e[5]+e[6]*e[6],i=e[8]*e[8]+e[9]*e[9]+e[10]*e[10];return Math.sqrt(Math.max(t,n,i))}makeTranslation(e,t,n){return e.isVector3?this.set(1,0,0,e.x,0,1,0,e.y,0,0,1,e.z,0,0,0,1):this.set(1,0,0,e,0,1,0,t,0,0,1,n,0,0,0,1),this}makeRotationX(e){const t=Math.cos(e),n=Math.sin(e);return this.set(1,0,0,0,0,t,-n,0,0,n,t,0,0,0,0,1),this}makeRotationY(e){const t=Math.cos(e),n=Math.sin(e);return this.set(t,0,n,0,0,1,0,0,-n,0,t,0,0,0,0,1),this}makeRotationZ(e){const t=Math.cos(e),n=Math.sin(e);return this.set(t,-n,0,0,n,t,0,0,0,0,1,0,0,0,0,1),this}makeRotationAxis(e,t){const n=Math.cos(t),i=Math.sin(t),r=1-n,a=e.x,s=e.y,o=e.z,l=r*a,c=r*s;return this.set(l*a+n,l*s-i*o,l*o+i*s,0,l*s+i*o,c*s+n,c*o-i*a,0,l*o-i*s,c*o+i*a,r*o*o+n,0,0,0,0,1),this}makeScale(e,t,n){return this.set(e,0,0,0,0,t,0,0,0,0,n,0,0,0,0,1),this}makeShear(e,t,n,i,r,a){return this.set(1,n,r,0,e,1,a,0,t,i,1,0,0,0,0,1),this}compose(e,t,n){const i=this.elements,r=t._x,a=t._y,s=t._z,o=t._w,l=r+r,c=a+a,u=s+s,h=r*l,d=r*c,p=r*u,f=a*c,m=a*u,g=s*u,_=o*l,v=o*c,x=o*u,M=n.x,y=n.y,E=n.z;return i[0]=(1-(f+g))*M,i[1]=(d+x)*M,i[2]=(p-v)*M,i[3]=0,i[4]=(d-x)*y,i[5]=(1-(h+g))*y,i[6]=(m+_)*y,i[7]=0,i[8]=(p+v)*E,i[9]=(m-_)*E,i[10]=(1-(h+f))*E,i[11]=0,i[12]=e.x,i[13]=e.y,i[14]=e.z,i[15]=1,this}decompose(e,t,n){const i=this.elements;let r=Dt.set(i[0],i[1],i[2]).length();const a=Dt.set(i[4],i[5],i[6]).length(),s=Dt.set(i[8],i[9],i[10]).length();this.determinant()<0&&(r=-r),e.x=i[12],e.y=i[13],e.z=i[14],It.copy(this);const o=1/r,l=1/a,c=1/s;return It.elements[0]*=o,It.elements[1]*=o,It.elements[2]*=o,It.elements[4]*=l,It.elements[5]*=l,It.elements[6]*=l,It.elements[8]*=c,It.elements[9]*=c,It.elements[10]*=c,t.setFromRotationMatrix(It),n.x=r,n.y=a,n.z=s,this}makePerspective(e,t,n,i,r,a,s=2e3){const o=this.elements,l=2*r/(t-e),c=2*r/(n-i),u=(t+e)/(t-e),h=(n+i)/(n-i);let d,p;if(s===he)d=-(a+r)/(a-r),p=-2*a*r/(a-r);else{if(s!==de)throw new Error("THREE.Matrix4.makePerspective(): Invalid coordinate system: "+s);d=-a/(a-r),p=-a*r/(a-r)}return o[0]=l,o[4]=0,o[8]=u,o[12]=0,o[1]=0,o[5]=c,o[9]=h,o[13]=0,o[2]=0,o[6]=0,o[10]=d,o[14]=p,o[3]=0,o[7]=0,o[11]=-1,o[15]=0,this}makeOrthographic(e,t,n,i,r,a,s=2e3){const o=this.elements,l=1/(t-e),c=1/(n-i),u=1/(a-r),h=(t+e)*l,d=(n+i)*c;let p,f;if(s===he)p=(a+r)*u,f=-2*u;else{if(s!==de)throw new Error("THREE.Matrix4.makeOrthographic(): Invalid coordinate system: "+s);p=r*u,f=-1*u}return o[0]=2*l,o[4]=0,o[8]=0,o[12]=-h,o[1]=0,o[5]=2*c,o[9]=0,o[13]=-d,o[2]=0,o[6]=0,o[10]=f,o[14]=-p,o[3]=0,o[7]=0,o[11]=0,o[15]=1,this}equals(e){const t=this.elements,n=e.elements;for(let i=0;i<16;i++)if(t[i]!==n[i])return!1;return!0}fromArray(e,t=0){for(let n=0;n<16;n++)this.elements[n]=e[n+t];return this}toArray(e=[],t=0){const n=this.elements;return e[t]=n[0],e[t+1]=n[1],e[t+2]=n[2],e[t+3]=n[3],e[t+4]=n[4],e[t+5]=n[5],e[t+6]=n[6],e[t+7]=n[7],e[t+8]=n[8],e[t+9]=n[9],e[t+10]=n[10],e[t+11]=n[11],e[t+12]=n[12],e[t+13]=n[13],e[t+14]=n[14],e[t+15]=n[15],e}}const Dt=new nt,It=new Ut,Nt=new nt(0,0,0),Ot=new nt(1,1,1),Ft=new nt,Bt=new nt,zt=new nt,Ht=new Ut,Vt=new tt;class Gt{constructor(e=0,t=0,n=0,i=Gt.DEFAULT_ORDER){this.isEuler=!0,this._x=e,this._y=t,this._z=n,this._order=i}get x(){return this._x}set x(e){this._x=e,this._onChangeCallback()}get y(){return this._y}set y(e){this._y=e,this._onChangeCallback()}get z(){return this._z}set z(e){this._z=e,this._onChangeCallback()}get order(){return this._order}set order(e){this._order=e,this._onChangeCallback()}set(e,t,n,i=this._order){return this._x=e,this._y=t,this._z=n,this._order=i,this._onChangeCallback(),this}clone(){return new this.constructor(this._x,this._y,this._z,this._order)}copy(e){return this._x=e._x,this._y=e._y,this._z=e._z,this._order=e._order,this._onChangeCallback(),this}setFromRotationMatrix(e,t=this._order,n=!0){const i=e.elements,r=i[0],a=i[4],s=i[8],o=i[1],l=i[5],c=i[9],u=i[2],h=i[6],d=i[10];switch(t){case"XYZ":this._y=Math.asin(xe(s,-1,1)),Math.abs(s)<.9999999?(this._x=Math.atan2(-c,d),this._z=Math.atan2(-a,r)):(this._x=Math.atan2(h,l),this._z=0);break;case"YXZ":this._x=Math.asin(-xe(c,-1,1)),Math.abs(c)<.9999999?(this._y=Math.atan2(s,d),this._z=Math.atan2(o,l)):(this._y=Math.atan2(-u,r),this._z=0);break;case"ZXY":this._x=Math.asin(xe(h,-1,1)),Math.abs(h)<.9999999?(this._y=Math.atan2(-u,d),this._z=Math.atan2(-a,l)):(this._y=0,this._z=Math.atan2(o,r));break;case"ZYX":this._y=Math.asin(-xe(u,-1,1)),Math.abs(u)<.9999999?(this._x=Math.atan2(h,d),this._z=Math.atan2(o,r)):(this._x=0,this._z=Math.atan2(-a,l));break;case"YZX":this._z=Math.asin(xe(o,-1,1)),Math.abs(o)<.9999999?(this._x=Math.atan2(-c,l),this._y=Math.atan2(-u,r)):(this._x=0,this._y=Math.atan2(s,d));break;case"XZY":this._z=Math.asin(-xe(a,-1,1)),Math.abs(a)<.9999999?(this._x=Math.atan2(h,l),this._y=Math.atan2(s,r)):(this._x=Math.atan2(-c,d),this._y=0);break;default:console.warn("THREE.Euler: .setFromRotationMatrix() encountered an unknown order: "+t)}return this._order=t,!0===n&&this._onChangeCallback(),this}setFromQuaternion(e,t,n){return Ht.makeRotationFromQuaternion(e),this.setFromRotationMatrix(Ht,t,n)}setFromVector3(e,t=this._order){return this.set(e.x,e.y,e.z,t)}reorder(e){return Vt.setFromEuler(this),this.setFromQuaternion(Vt,e)}equals(e){return e._x===this._x&&e._y===this._y&&e._z===this._z&&e._order===this._order}fromArray(e){return this._x=e[0],this._y=e[1],this._z=e[2],void 0!==e[3]&&(this._order=e[3]),this._onChangeCallback(),this}toArray(e=[],t=0){return e[t]=this._x,e[t+1]=this._y,e[t+2]=this._z,e[t+3]=this._order,e}_onChange(e){return this._onChangeCallback=e,this}_onChangeCallback(){}*[Symbol.iterator](){yield this._x,yield this._y,yield this._z,yield this._order}}Gt.DEFAULT_ORDER="XYZ";class kt{constructor(){this.mask=1}set(e){this.mask=(1<>>0}enable(e){this.mask|=1<1){for(let e=0;e1){for(let e=0;e0&&(n=n.concat(r))}return n}getWorldPosition(e){return this.updateWorldMatrix(!0,!1),e.setFromMatrixPosition(this.matrixWorld)}getWorldQuaternion(e){return this.updateWorldMatrix(!0,!1),this.matrixWorld.decompose(Kt,e,Zt),e}getWorldScale(e){return this.updateWorldMatrix(!0,!1),this.matrixWorld.decompose(Kt,Jt,e),e}getWorldDirection(e){this.updateWorldMatrix(!0,!1);const t=this.matrixWorld.elements;return e.set(t[8],t[9],t[10]).normalize()}raycast(){}traverse(e){e(this);const t=this.children;for(let n=0,i=t.length;n0&&(i.userData=this.userData),i.layers=this.layers.mask,i.matrix=this.matrix.toArray(),i.up=this.up.toArray(),!1===this.matrixAutoUpdate&&(i.matrixAutoUpdate=!1),this.isInstancedMesh&&(i.type="InstancedMesh",i.count=this.count,i.instanceMatrix=this.instanceMatrix.toJSON(),null!==this.instanceColor&&(i.instanceColor=this.instanceColor.toJSON())),this.isScene)this.background&&(this.background.isColor?i.background=this.background.toJSON():this.background.isTexture&&(i.background=this.background.toJSON(e).uuid)),this.environment&&this.environment.isTexture&&!0!==this.environment.isRenderTargetTexture&&(i.environment=this.environment.toJSON(e).uuid);else if(this.isMesh||this.isLine||this.isPoints){i.geometry=r(e.geometries,this.geometry);const t=this.geometry.parameters;if(void 0!==t&&void 0!==t.shapes){const n=t.shapes;if(Array.isArray(n))for(let t=0,i=n.length;t0){i.children=[];for(let t=0;t0){i.animations=[];for(let t=0;t0&&(n.geometries=t),i.length>0&&(n.materials=i),r.length>0&&(n.textures=r),s.length>0&&(n.images=s),o.length>0&&(n.shapes=o),l.length>0&&(n.skeletons=l),c.length>0&&(n.animations=c),u.length>0&&(n.nodes=u)}return n.object=i,n;function a(e){const t=[];for(const n in e){const i=e[n];delete i.metadata,t.push(i)}return t}}clone(e){return(new this.constructor).copy(this,e)}copy(e,t=!0){if(this.name=e.name,this.up.copy(e.up),this.position.copy(e.position),this.rotation.order=e.rotation.order,this.quaternion.copy(e.quaternion),this.scale.copy(e.scale),this.matrix.copy(e.matrix),this.matrixWorld.copy(e.matrixWorld),this.matrixAutoUpdate=e.matrixAutoUpdate,this.matrixWorldNeedsUpdate=e.matrixWorldNeedsUpdate,this.matrixWorldAutoUpdate=e.matrixWorldAutoUpdate,this.layers.mask=e.layers.mask,this.visible=e.visible,this.castShadow=e.castShadow,this.receiveShadow=e.receiveShadow,this.frustumCulled=e.frustumCulled,this.renderOrder=e.renderOrder,this.animations=e.animations.slice(),this.userData=JSON.parse(JSON.stringify(e.userData)),!0===t)for(let n=0;n0?i.multiplyScalar(1/Math.sqrt(r)):i.set(0,0,0)}static getBarycoord(e,t,n,i,r){an.subVectors(i,t),sn.subVectors(n,t),on.subVectors(e,t);const a=an.dot(an),s=an.dot(sn),o=an.dot(on),l=sn.dot(sn),c=sn.dot(on),u=a*l-s*s;if(0===u)return r.set(-2,-1,-1);const h=1/u,d=(l*o-s*c)*h,p=(a*c-s*o)*h;return r.set(1-d-p,p,d)}static containsPoint(e,t,n,i){return this.getBarycoord(e,t,n,i,ln),ln.x>=0&&ln.y>=0&&ln.x+ln.y<=1}static getUV(e,t,n,i,r,a,s,o){return!1===mn&&(console.warn("THREE.Triangle.getUV() has been renamed to THREE.Triangle.getInterpolation()."),mn=!0),this.getInterpolation(e,t,n,i,r,a,s,o)}static getInterpolation(e,t,n,i,r,a,s,o){return this.getBarycoord(e,t,n,i,ln),o.setScalar(0),o.addScaledVector(r,ln.x),o.addScaledVector(a,ln.y),o.addScaledVector(s,ln.z),o}static isFrontFacing(e,t,n,i){return an.subVectors(n,t),sn.subVectors(e,t),an.cross(sn).dot(i)<0}set(e,t,n){return this.a.copy(e),this.b.copy(t),this.c.copy(n),this}setFromPointsAndIndices(e,t,n,i){return this.a.copy(e[t]),this.b.copy(e[n]),this.c.copy(e[i]),this}setFromAttributeAndIndices(e,t,n,i){return this.a.fromBufferAttribute(e,t),this.b.fromBufferAttribute(e,n),this.c.fromBufferAttribute(e,i),this}clone(){return(new this.constructor).copy(this)}copy(e){return this.a.copy(e.a),this.b.copy(e.b),this.c.copy(e.c),this}getArea(){return an.subVectors(this.c,this.b),sn.subVectors(this.a,this.b),.5*an.cross(sn).length()}getMidpoint(e){return e.addVectors(this.a,this.b).add(this.c).multiplyScalar(1/3)}getNormal(e){return gn.getNormal(this.a,this.b,this.c,e)}getPlane(e){return e.setFromCoplanarPoints(this.a,this.b,this.c)}getBarycoord(e,t){return gn.getBarycoord(e,this.a,this.b,this.c,t)}getUV(e,t,n,i,r){return!1===mn&&(console.warn("THREE.Triangle.getUV() has been renamed to THREE.Triangle.getInterpolation()."),mn=!0),gn.getInterpolation(e,this.a,this.b,this.c,t,n,i,r)}getInterpolation(e,t,n,i,r){return gn.getInterpolation(e,this.a,this.b,this.c,t,n,i,r)}containsPoint(e){return gn.containsPoint(e,this.a,this.b,this.c)}isFrontFacing(e){return gn.isFrontFacing(this.a,this.b,this.c,e)}intersectsBox(e){return e.intersectsTriangle(this)}closestPointToPoint(e,t){const n=this.a,i=this.b,r=this.c;let a,s;cn.subVectors(i,n),un.subVectors(r,n),dn.subVectors(e,n);const o=cn.dot(dn),l=un.dot(dn);if(o<=0&&l<=0)return t.copy(n);pn.subVectors(e,i);const c=cn.dot(pn),u=un.dot(pn);if(c>=0&&u<=c)return t.copy(i);const h=o*u-c*l;if(h<=0&&o>=0&&c<=0)return a=o/(o-c),t.copy(n).addScaledVector(cn,a);fn.subVectors(e,r);const d=cn.dot(fn),p=un.dot(fn);if(p>=0&&d<=p)return t.copy(r);const f=d*l-o*p;if(f<=0&&l>=0&&p<=0)return s=l/(l-p),t.copy(n).addScaledVector(un,s);const m=c*p-d*u;if(m<=0&&u-c>=0&&d-p>=0)return hn.subVectors(r,i),s=(u-c)/(u-c+(d-p)),t.copy(i).addScaledVector(hn,s);const g=1/(m+f+h);return a=f*g,s=h*g,t.copy(n).addScaledVector(cn,a).addScaledVector(un,s)}equals(e){return e.a.equals(this.a)&&e.b.equals(this.b)&&e.c.equals(this.c)}}let _n=0;class vn extends pe{constructor(){super(),this.isMaterial=!0,Object.defineProperty(this,"id",{value:_n++}),this.uuid=ve(),this.name="",this.type="Material",this.blending=1,this.side=c,this.vertexColors=!1,this.opacity=1,this.transparent=!1,this.alphaHash=!1,this.blendSrc=204,this.blendDst=205,this.blendEquation=d,this.blendSrcAlpha=null,this.blendDstAlpha=null,this.blendEquationAlpha=null,this.depthFunc=3,this.depthTest=!0,this.depthWrite=!0,this.stencilWriteMask=255,this.stencilFunc=519,this.stencilRef=0,this.stencilFuncMask=255,this.stencilFail=oe,this.stencilZFail=oe,this.stencilZPass=oe,this.stencilWrite=!1,this.clippingPlanes=null,this.clipIntersection=!1,this.clipShadows=!1,this.shadowSide=null,this.colorWrite=!0,this.precision=null,this.polygonOffset=!1,this.polygonOffsetFactor=0,this.polygonOffsetUnits=0,this.dithering=!1,this.alphaToCoverage=!1,this.premultipliedAlpha=!1,this.forceSinglePass=!1,this.visible=!0,this.toneMapped=!0,this.userData={},this.version=0,this._alphaTest=0}get alphaTest(){return this._alphaTest}set alphaTest(e){this._alphaTest>0!=e>0&&this.version++,this._alphaTest=e}onBuild(){}onBeforeRender(){}onBeforeCompile(){}customProgramCacheKey(){return this.onBeforeCompile.toString()}setValues(e){if(void 0!==e)for(const t in e){const n=e[t];if(void 0===n){console.warn(`THREE.Material: parameter '${t}' has value of undefined.`);continue}const i=this[t];void 0!==i?i&&i.isColor?i.set(n):i&&i.isVector3&&n&&n.isVector3?i.copy(n):this[t]=n:console.warn(`THREE.Material: '${t}' is not a property of THREE.${this.type}.`)}}toJSON(e){const t=void 0===e||"string"==typeof e;t&&(e={textures:{},images:{}});const n={metadata:{version:4.6,type:"Material",generator:"Material.toJSON"}};function i(e){const t=[];for(const n in e){const i=e[n];delete i.metadata,t.push(i)}return t}if(n.uuid=this.uuid,n.type=this.type,""!==this.name&&(n.name=this.name),this.color&&this.color.isColor&&(n.color=this.color.getHex()),void 0!==this.roughness&&(n.roughness=this.roughness),void 0!==this.metalness&&(n.metalness=this.metalness),void 0!==this.sheen&&(n.sheen=this.sheen),this.sheenColor&&this.sheenColor.isColor&&(n.sheenColor=this.sheenColor.getHex()),void 0!==this.sheenRoughness&&(n.sheenRoughness=this.sheenRoughness),this.emissive&&this.emissive.isColor&&(n.emissive=this.emissive.getHex()),this.emissiveIntensity&&1!==this.emissiveIntensity&&(n.emissiveIntensity=this.emissiveIntensity),this.specular&&this.specular.isColor&&(n.specular=this.specular.getHex()),void 0!==this.specularIntensity&&(n.specularIntensity=this.specularIntensity),this.specularColor&&this.specularColor.isColor&&(n.specularColor=this.specularColor.getHex()),void 0!==this.shininess&&(n.shininess=this.shininess),void 0!==this.clearcoat&&(n.clearcoat=this.clearcoat),void 0!==this.clearcoatRoughness&&(n.clearcoatRoughness=this.clearcoatRoughness),this.clearcoatMap&&this.clearcoatMap.isTexture&&(n.clearcoatMap=this.clearcoatMap.toJSON(e).uuid),this.clearcoatRoughnessMap&&this.clearcoatRoughnessMap.isTexture&&(n.clearcoatRoughnessMap=this.clearcoatRoughnessMap.toJSON(e).uuid),this.clearcoatNormalMap&&this.clearcoatNormalMap.isTexture&&(n.clearcoatNormalMap=this.clearcoatNormalMap.toJSON(e).uuid,n.clearcoatNormalScale=this.clearcoatNormalScale.toArray()),void 0!==this.iridescence&&(n.iridescence=this.iridescence),void 0!==this.iridescenceIOR&&(n.iridescenceIOR=this.iridescenceIOR),void 0!==this.iridescenceThicknessRange&&(n.iridescenceThicknessRange=this.iridescenceThicknessRange),this.iridescenceMap&&this.iridescenceMap.isTexture&&(n.iridescenceMap=this.iridescenceMap.toJSON(e).uuid),this.iridescenceThicknessMap&&this.iridescenceThicknessMap.isTexture&&(n.iridescenceThicknessMap=this.iridescenceThicknessMap.toJSON(e).uuid),void 0!==this.anisotropy&&(n.anisotropy=this.anisotropy),void 0!==this.anisotropyRotation&&(n.anisotropyRotation=this.anisotropyRotation),this.anisotropyMap&&this.anisotropyMap.isTexture&&(n.anisotropyMap=this.anisotropyMap.toJSON(e).uuid),this.map&&this.map.isTexture&&(n.map=this.map.toJSON(e).uuid),this.matcap&&this.matcap.isTexture&&(n.matcap=this.matcap.toJSON(e).uuid),this.alphaMap&&this.alphaMap.isTexture&&(n.alphaMap=this.alphaMap.toJSON(e).uuid),this.lightMap&&this.lightMap.isTexture&&(n.lightMap=this.lightMap.toJSON(e).uuid,n.lightMapIntensity=this.lightMapIntensity),this.aoMap&&this.aoMap.isTexture&&(n.aoMap=this.aoMap.toJSON(e).uuid,n.aoMapIntensity=this.aoMapIntensity),this.bumpMap&&this.bumpMap.isTexture&&(n.bumpMap=this.bumpMap.toJSON(e).uuid,n.bumpScale=this.bumpScale),this.normalMap&&this.normalMap.isTexture&&(n.normalMap=this.normalMap.toJSON(e).uuid,n.normalMapType=this.normalMapType,n.normalScale=this.normalScale.toArray()),this.displacementMap&&this.displacementMap.isTexture&&(n.displacementMap=this.displacementMap.toJSON(e).uuid,n.displacementScale=this.displacementScale,n.displacementBias=this.displacementBias),this.roughnessMap&&this.roughnessMap.isTexture&&(n.roughnessMap=this.roughnessMap.toJSON(e).uuid),this.metalnessMap&&this.metalnessMap.isTexture&&(n.metalnessMap=this.metalnessMap.toJSON(e).uuid),this.emissiveMap&&this.emissiveMap.isTexture&&(n.emissiveMap=this.emissiveMap.toJSON(e).uuid),this.specularMap&&this.specularMap.isTexture&&(n.specularMap=this.specularMap.toJSON(e).uuid),this.specularIntensityMap&&this.specularIntensityMap.isTexture&&(n.specularIntensityMap=this.specularIntensityMap.toJSON(e).uuid),this.specularColorMap&&this.specularColorMap.isTexture&&(n.specularColorMap=this.specularColorMap.toJSON(e).uuid),this.envMap&&this.envMap.isTexture&&(n.envMap=this.envMap.toJSON(e).uuid,void 0!==this.combine&&(n.combine=this.combine)),void 0!==this.envMapIntensity&&(n.envMapIntensity=this.envMapIntensity),void 0!==this.reflectivity&&(n.reflectivity=this.reflectivity),void 0!==this.refractionRatio&&(n.refractionRatio=this.refractionRatio),this.gradientMap&&this.gradientMap.isTexture&&(n.gradientMap=this.gradientMap.toJSON(e).uuid),void 0!==this.transmission&&(n.transmission=this.transmission),this.transmissionMap&&this.transmissionMap.isTexture&&(n.transmissionMap=this.transmissionMap.toJSON(e).uuid),void 0!==this.thickness&&(n.thickness=this.thickness),this.thicknessMap&&this.thicknessMap.isTexture&&(n.thicknessMap=this.thicknessMap.toJSON(e).uuid),void 0!==this.attenuationDistance&&this.attenuationDistance!==1/0&&(n.attenuationDistance=this.attenuationDistance),void 0!==this.attenuationColor&&(n.attenuationColor=this.attenuationColor.getHex()),void 0!==this.size&&(n.size=this.size),null!==this.shadowSide&&(n.shadowSide=this.shadowSide),void 0!==this.sizeAttenuation&&(n.sizeAttenuation=this.sizeAttenuation),1!==this.blending&&(n.blending=this.blending),this.side!==c&&(n.side=this.side),this.vertexColors&&(n.vertexColors=!0),this.opacity<1&&(n.opacity=this.opacity),!0===this.transparent&&(n.transparent=this.transparent),n.depthFunc=this.depthFunc,n.depthTest=this.depthTest,n.depthWrite=this.depthWrite,n.colorWrite=this.colorWrite,n.stencilWrite=this.stencilWrite,n.stencilWriteMask=this.stencilWriteMask,n.stencilFunc=this.stencilFunc,n.stencilRef=this.stencilRef,n.stencilFuncMask=this.stencilFuncMask,n.stencilFail=this.stencilFail,n.stencilZFail=this.stencilZFail,n.stencilZPass=this.stencilZPass,void 0!==this.rotation&&0!==this.rotation&&(n.rotation=this.rotation),!0===this.polygonOffset&&(n.polygonOffset=!0),0!==this.polygonOffsetFactor&&(n.polygonOffsetFactor=this.polygonOffsetFactor),0!==this.polygonOffsetUnits&&(n.polygonOffsetUnits=this.polygonOffsetUnits),void 0!==this.linewidth&&1!==this.linewidth&&(n.linewidth=this.linewidth),void 0!==this.dashSize&&(n.dashSize=this.dashSize),void 0!==this.gapSize&&(n.gapSize=this.gapSize),void 0!==this.scale&&(n.scale=this.scale),!0===this.dithering&&(n.dithering=!0),this.alphaTest>0&&(n.alphaTest=this.alphaTest),!0===this.alphaHash&&(n.alphaHash=this.alphaHash),!0===this.alphaToCoverage&&(n.alphaToCoverage=this.alphaToCoverage),!0===this.premultipliedAlpha&&(n.premultipliedAlpha=this.premultipliedAlpha),!0===this.forceSinglePass&&(n.forceSinglePass=this.forceSinglePass),!0===this.wireframe&&(n.wireframe=this.wireframe),this.wireframeLinewidth>1&&(n.wireframeLinewidth=this.wireframeLinewidth),"round"!==this.wireframeLinecap&&(n.wireframeLinecap=this.wireframeLinecap),"round"!==this.wireframeLinejoin&&(n.wireframeLinejoin=this.wireframeLinejoin),!0===this.flatShading&&(n.flatShading=this.flatShading),!1===this.visible&&(n.visible=!1),!1===this.toneMapped&&(n.toneMapped=!1),!1===this.fog&&(n.fog=!1),Object.keys(this.userData).length>0&&(n.userData=this.userData),t){const t=i(e.textures),r=i(e.images);t.length>0&&(n.textures=t),r.length>0&&(n.images=r)}return n}clone(){return(new this.constructor).copy(this)}copy(e){this.name=e.name,this.blending=e.blending,this.side=e.side,this.vertexColors=e.vertexColors,this.opacity=e.opacity,this.transparent=e.transparent,this.blendSrc=e.blendSrc,this.blendDst=e.blendDst,this.blendEquation=e.blendEquation,this.blendSrcAlpha=e.blendSrcAlpha,this.blendDstAlpha=e.blendDstAlpha,this.blendEquationAlpha=e.blendEquationAlpha,this.depthFunc=e.depthFunc,this.depthTest=e.depthTest,this.depthWrite=e.depthWrite,this.stencilWriteMask=e.stencilWriteMask,this.stencilFunc=e.stencilFunc,this.stencilRef=e.stencilRef,this.stencilFuncMask=e.stencilFuncMask,this.stencilFail=e.stencilFail,this.stencilZFail=e.stencilZFail,this.stencilZPass=e.stencilZPass,this.stencilWrite=e.stencilWrite;const t=e.clippingPlanes;let n=null;if(null!==t){const e=t.length;n=new Array(e);for(let i=0;i!==e;++i)n[i]=t[i].clone()}return this.clippingPlanes=n,this.clipIntersection=e.clipIntersection,this.clipShadows=e.clipShadows,this.shadowSide=e.shadowSide,this.colorWrite=e.colorWrite,this.precision=e.precision,this.polygonOffset=e.polygonOffset,this.polygonOffsetFactor=e.polygonOffsetFactor,this.polygonOffsetUnits=e.polygonOffsetUnits,this.dithering=e.dithering,this.alphaTest=e.alphaTest,this.alphaHash=e.alphaHash,this.alphaToCoverage=e.alphaToCoverage,this.premultipliedAlpha=e.premultipliedAlpha,this.forceSinglePass=e.forceSinglePass,this.visible=e.visible,this.toneMapped=e.toneMapped,this.userData=JSON.parse(JSON.stringify(e.userData)),this}dispose(){this.dispatchEvent({type:"dispose"})}set needsUpdate(e){!0===e&&this.version++}}const xn={aliceblue:15792383,antiquewhite:16444375,aqua:65535,aquamarine:8388564,azure:15794175,beige:16119260,bisque:16770244,black:0,blanchedalmond:16772045,blue:255,blueviolet:9055202,brown:10824234,burlywood:14596231,cadetblue:6266528,chartreuse:8388352,chocolate:13789470,coral:16744272,cornflowerblue:6591981,cornsilk:16775388,crimson:14423100,cyan:65535,darkblue:139,darkcyan:35723,darkgoldenrod:12092939,darkgray:11119017,darkgreen:25600,darkgrey:11119017,darkkhaki:12433259,darkmagenta:9109643,darkolivegreen:5597999,darkorange:16747520,darkorchid:10040012,darkred:9109504,darksalmon:15308410,darkseagreen:9419919,darkslateblue:4734347,darkslategray:3100495,darkslategrey:3100495,darkturquoise:52945,darkviolet:9699539,deeppink:16716947,deepskyblue:49151,dimgray:6908265,dimgrey:6908265,dodgerblue:2003199,firebrick:11674146,floralwhite:16775920,forestgreen:2263842,fuchsia:16711935,gainsboro:14474460,ghostwhite:16316671,gold:16766720,goldenrod:14329120,gray:8421504,green:32768,greenyellow:11403055,grey:8421504,honeydew:15794160,hotpink:16738740,indianred:13458524,indigo:4915330,ivory:16777200,khaki:15787660,lavender:15132410,lavenderblush:16773365,lawngreen:8190976,lemonchiffon:16775885,lightblue:11393254,lightcoral:15761536,lightcyan:14745599,lightgoldenrodyellow:16448210,lightgray:13882323,lightgreen:9498256,lightgrey:13882323,lightpink:16758465,lightsalmon:16752762,lightseagreen:2142890,lightskyblue:8900346,lightslategray:7833753,lightslategrey:7833753,lightsteelblue:11584734,lightyellow:16777184,lime:65280,limegreen:3329330,linen:16445670,magenta:16711935,maroon:8388608,mediumaquamarine:6737322,mediumblue:205,mediumorchid:12211667,mediumpurple:9662683,mediumseagreen:3978097,mediumslateblue:8087790,mediumspringgreen:64154,mediumturquoise:4772300,mediumvioletred:13047173,midnightblue:1644912,mintcream:16121850,mistyrose:16770273,moccasin:16770229,navajowhite:16768685,navy:128,oldlace:16643558,olive:8421376,olivedrab:7048739,orange:16753920,orangered:16729344,orchid:14315734,palegoldenrod:15657130,palegreen:10025880,paleturquoise:11529966,palevioletred:14381203,papayawhip:16773077,peachpuff:16767673,peru:13468991,pink:16761035,plum:14524637,powderblue:11591910,purple:8388736,rebeccapurple:6697881,red:16711680,rosybrown:12357519,royalblue:4286945,saddlebrown:9127187,salmon:16416882,sandybrown:16032864,seagreen:3050327,seashell:16774638,sienna:10506797,silver:12632256,skyblue:8900331,slateblue:6970061,slategray:7372944,slategrey:7372944,snow:16775930,springgreen:65407,steelblue:4620980,tan:13808780,teal:32896,thistle:14204888,tomato:16737095,turquoise:4251856,violet:15631086,wheat:16113331,white:16777215,whitesmoke:16119285,yellow:16776960,yellowgreen:10145074},Mn={h:0,s:0,l:0},yn={h:0,s:0,l:0};function En(e,t,n){return n<0&&(n+=1),n>1&&(n-=1),n<1/6?e+6*(t-e)*n:n<.5?t:n<2/3?e+6*(t-e)*(2/3-n):e}class Sn{constructor(e,t,n){return this.isColor=!0,this.r=1,this.g=1,this.b=1,this.set(e,t,n)}set(e,t,n){if(void 0===t&&void 0===n){const t=e;t&&t.isColor?this.copy(t):"number"==typeof t?this.setHex(t):"string"==typeof t&&this.setStyle(t)}else this.setRGB(e,t,n);return this}setScalar(e){return this.r=e,this.g=e,this.b=e,this}setHex(e,t=re){return e=Math.floor(e),this.r=(e>>16&255)/255,this.g=(e>>8&255)/255,this.b=(255&e)/255,Ge.toWorkingColorSpace(this,t),this}setRGB(e,t,n,i=Ge.workingColorSpace){return this.r=e,this.g=t,this.b=n,Ge.toWorkingColorSpace(this,i),this}setHSL(e,t,n,i=Ge.workingColorSpace){if(e=Me(e,1),t=xe(t,0,1),n=xe(n,0,1),0===t)this.r=this.g=this.b=n;else{const i=n<=.5?n*(1+t):n+t-n*t,r=2*n-i;this.r=En(r,i,e+1/3),this.g=En(r,i,e),this.b=En(r,i,e-1/3)}return Ge.toWorkingColorSpace(this,i),this}setStyle(e,t=re){function n(t){void 0!==t&&parseFloat(t)<1&&console.warn("THREE.Color: Alpha component of "+e+" will be ignored.")}let i;if(i=/^(\w+)\(([^\)]*)\)/.exec(e)){let r;const a=i[1],s=i[2];switch(a){case"rgb":case"rgba":if(r=/^\s*(\d+)\s*,\s*(\d+)\s*,\s*(\d+)\s*(?:,\s*(\d*\.?\d+)\s*)?$/.exec(s))return n(r[4]),this.setRGB(Math.min(255,parseInt(r[1],10))/255,Math.min(255,parseInt(r[2],10))/255,Math.min(255,parseInt(r[3],10))/255,t);if(r=/^\s*(\d+)\%\s*,\s*(\d+)\%\s*,\s*(\d+)\%\s*(?:,\s*(\d*\.?\d+)\s*)?$/.exec(s))return n(r[4]),this.setRGB(Math.min(100,parseInt(r[1],10))/100,Math.min(100,parseInt(r[2],10))/100,Math.min(100,parseInt(r[3],10))/100,t);break;case"hsl":case"hsla":if(r=/^\s*(\d*\.?\d+)\s*,\s*(\d*\.?\d+)\%\s*,\s*(\d*\.?\d+)\%\s*(?:,\s*(\d*\.?\d+)\s*)?$/.exec(s))return n(r[4]),this.setHSL(parseFloat(r[1])/360,parseFloat(r[2])/100,parseFloat(r[3])/100,t);break;default:console.warn("THREE.Color: Unknown color model "+e)}}else if(i=/^\#([A-Fa-f\d]+)$/.exec(e)){const n=i[1],r=n.length;if(3===r)return this.setRGB(parseInt(n.charAt(0),16)/15,parseInt(n.charAt(1),16)/15,parseInt(n.charAt(2),16)/15,t);if(6===r)return this.setHex(parseInt(n,16),t);console.warn("THREE.Color: Invalid hex color "+e)}else if(e&&e.length>0)return this.setColorName(e,t);return this}setColorName(e,t=re){const n=xn[e.toLowerCase()];return void 0!==n?this.setHex(n,t):console.warn("THREE.Color: Unknown color "+e),this}clone(){return new this.constructor(this.r,this.g,this.b)}copy(e){return this.r=e.r,this.g=e.g,this.b=e.b,this}copySRGBToLinear(e){return this.r=Oe(e.r),this.g=Oe(e.g),this.b=Oe(e.b),this}copyLinearToSRGB(e){return this.r=Fe(e.r),this.g=Fe(e.g),this.b=Fe(e.b),this}convertSRGBToLinear(){return this.copySRGBToLinear(this),this}convertLinearToSRGB(){return this.copyLinearToSRGB(this),this}getHex(e=re){return Ge.fromWorkingColorSpace(Tn.copy(this),e),65536*Math.round(xe(255*Tn.r,0,255))+256*Math.round(xe(255*Tn.g,0,255))+Math.round(xe(255*Tn.b,0,255))}getHexString(e=re){return("000000"+this.getHex(e).toString(16)).slice(-6)}getHSL(e,t=Ge.workingColorSpace){Ge.fromWorkingColorSpace(Tn.copy(this),t);const n=Tn.r,i=Tn.g,r=Tn.b,a=Math.max(n,i,r),s=Math.min(n,i,r);let o,l;const c=(s+a)/2;if(s===a)o=0,l=0;else{const e=a-s;switch(l=c<=.5?e/(a+s):e/(2-a-s),a){case n:o=(i-r)/e+(i0&&(e.userData=this.userData),void 0!==this.parameters){const t=this.parameters;for(const n in t)void 0!==t[n]&&(e[n]=t[n]);return e}e.data={attributes:{}};const t=this.index;null!==t&&(e.data.index={type:t.array.constructor.name,array:Array.prototype.slice.call(t.array)});const n=this.attributes;for(const o in n){const t=n[o];e.data.attributes[o]=t.toJSON(e.data)}const i={};let r=!1;for(const o in this.morphAttributes){const t=this.morphAttributes[o],n=[];for(let i=0,r=t.length;i0&&(i[o]=n,r=!0)}r&&(e.data.morphAttributes=i,e.data.morphTargetsRelative=this.morphTargetsRelative);const a=this.groups;a.length>0&&(e.data.groups=JSON.parse(JSON.stringify(a)));const s=this.boundingSphere;return null!==s&&(e.data.boundingSphere={center:s.center.toArray(),radius:s.radius}),e}clone(){return(new this.constructor).copy(this)}copy(e){this.index=null,this.attributes={},this.morphAttributes={},this.groups=[],this.boundingBox=null,this.boundingSphere=null;const t={};this.name=e.name;const n=e.index;null!==n&&this.setIndex(n.clone(t));const i=e.attributes;for(const l in i){const e=i[l];this.setAttribute(l,e.clone(t))}const r=e.morphAttributes;for(const l in r){const e=[],n=r[l];for(let i=0,r=n.length;i0){const n=e[t[0]];if(void 0!==n){this.morphTargetInfluences=[],this.morphTargetDictionary={};for(let e=0,t=n.length;e(e.far-e.near)**2)return}Hn.copy(r).invert(),Vn.copy(e.ray).applyMatrix4(Hn),null!==n.boundingBox&&!1===Vn.intersectsBox(n.boundingBox)||this._computeIntersections(e,t,Vn)}}_computeIntersections(e,t,n){let i;const r=this.geometry,a=this.material,s=r.index,o=r.attributes.position,l=r.attributes.uv,c=r.attributes.uv1,u=r.attributes.normal,h=r.groups,d=r.drawRange;if(null!==s)if(Array.isArray(a))for(let p=0,f=h.length;pn.far?null:{distance:h,point:ni.clone(),object:e}}(e,t,n,i,Wn,Xn,jn,ti);if(d){r&&(Kn.fromBufferAttribute(r,o),Zn.fromBufferAttribute(r,l),Jn.fromBufferAttribute(r,h),d.uv=gn.getInterpolation(ti,Wn,Xn,jn,Kn,Zn,Jn,new Re)),a&&(Kn.fromBufferAttribute(a,o),Zn.fromBufferAttribute(a,l),Jn.fromBufferAttribute(a,h),d.uv1=gn.getInterpolation(ti,Wn,Xn,jn,Kn,Zn,Jn,new Re),d.uv2=d.uv1),s&&(Qn.fromBufferAttribute(s,o),$n.fromBufferAttribute(s,l),ei.fromBufferAttribute(s,h),d.normal=gn.getInterpolation(ti,Wn,Xn,jn,Qn,$n,ei,new nt),d.normal.dot(i.direction)>0&&d.normal.multiplyScalar(-1));const e={a:o,b:l,c:h,normal:new nt,materialIndex:0};gn.getNormal(Wn,Xn,jn,e.normal),d.face=e}return d}class ai extends zn{constructor(e=1,t=1,n=1,i=1,r=1,a=1){super(),this.type="BoxGeometry",this.parameters={width:e,height:t,depth:n,widthSegments:i,heightSegments:r,depthSegments:a};const s=this;i=Math.floor(i),r=Math.floor(r),a=Math.floor(a);const o=[],l=[],c=[],u=[];let h=0,d=0;function p(e,t,n,i,r,a,p,f,m,g,_){const v=a/m,x=p/g,M=a/2,y=p/2,E=f/2,S=m+1,T=g+1;let b=0,A=0;const w=new nt;for(let s=0;s0?1:-1,c.push(w.x,w.y,w.z),u.push(o/m),u.push(1-s/g),b+=1}}for(let s=0;s0&&(t.defines=this.defines),t.vertexShader=this.vertexShader,t.fragmentShader=this.fragmentShader,t.lights=this.lights,t.clipping=this.clipping;const n={};for(const i in this.extensions)!0===this.extensions[i]&&(n[i]=!0);return Object.keys(n).length>0&&(t.extensions=n),t}}class hi extends rn{constructor(){super(),this.isCamera=!0,this.type="Camera",this.matrixWorldInverse=new Ut,this.projectionMatrix=new Ut,this.projectionMatrixInverse=new Ut,this.coordinateSystem=he}copy(e,t){return super.copy(e,t),this.matrixWorldInverse.copy(e.matrixWorldInverse),this.projectionMatrix.copy(e.projectionMatrix),this.projectionMatrixInverse.copy(e.projectionMatrixInverse),this.coordinateSystem=e.coordinateSystem,this}getWorldDirection(e){this.updateWorldMatrix(!0,!1);const t=this.matrixWorld.elements;return e.set(-t[8],-t[9],-t[10]).normalize()}updateMatrixWorld(e){super.updateMatrixWorld(e),this.matrixWorldInverse.copy(this.matrixWorld).invert()}updateWorldMatrix(e,t){super.updateWorldMatrix(e,t),this.matrixWorldInverse.copy(this.matrixWorld).invert()}clone(){return(new this.constructor).copy(this)}}class di extends hi{constructor(e=50,t=1,n=.1,i=2e3){super(),this.isPerspectiveCamera=!0,this.type="PerspectiveCamera",this.fov=e,this.zoom=1,this.near=n,this.far=i,this.focus=10,this.aspect=t,this.view=null,this.filmGauge=35,this.filmOffset=0,this.updateProjectionMatrix()}copy(e,t){return super.copy(e,t),this.fov=e.fov,this.zoom=e.zoom,this.near=e.near,this.far=e.far,this.focus=e.focus,this.aspect=e.aspect,this.view=null===e.view?null:Object.assign({},e.view),this.filmGauge=e.filmGauge,this.filmOffset=e.filmOffset,this}setFocalLength(e){const t=.5*this.getFilmHeight()/e;this.fov=2*_e*Math.atan(t),this.updateProjectionMatrix()}getFocalLength(){const e=Math.tan(.5*ge*this.fov);return.5*this.getFilmHeight()/e}getEffectiveFOV(){return 2*_e*Math.atan(Math.tan(.5*ge*this.fov)/this.zoom)}getFilmWidth(){return this.filmGauge*Math.min(this.aspect,1)}getFilmHeight(){return this.filmGauge/Math.max(this.aspect,1)}setViewOffset(e,t,n,i,r,a){this.aspect=e/t,null===this.view&&(this.view={enabled:!0,fullWidth:1,fullHeight:1,offsetX:0,offsetY:0,width:1,height:1}),this.view.enabled=!0,this.view.fullWidth=e,this.view.fullHeight=t,this.view.offsetX=n,this.view.offsetY=i,this.view.width=r,this.view.height=a,this.updateProjectionMatrix()}clearViewOffset(){null!==this.view&&(this.view.enabled=!1),this.updateProjectionMatrix()}updateProjectionMatrix(){const e=this.near;let t=e*Math.tan(.5*ge*this.fov)/this.zoom,n=2*t,i=this.aspect*n,r=-.5*i;const a=this.view;if(null!==this.view&&this.view.enabled){const e=a.fullWidth,s=a.fullHeight;r+=a.offsetX*i/e,t-=a.offsetY*n/s,i*=a.width/e,n*=a.height/s}const s=this.filmOffset;0!==s&&(r+=e*s/this.getFilmWidth()),this.projectionMatrix.makePerspective(r,r+i,t,t-n,e,this.far,this.coordinateSystem),this.projectionMatrixInverse.copy(this.projectionMatrix).invert()}toJSON(e){const t=super.toJSON(e);return t.object.fov=this.fov,t.object.zoom=this.zoom,t.object.near=this.near,t.object.far=this.far,t.object.focus=this.focus,t.object.aspect=this.aspect,null!==this.view&&(t.object.view=Object.assign({},this.view)),t.object.filmGauge=this.filmGauge,t.object.filmOffset=this.filmOffset,t}}const pi=-90;class fi extends rn{constructor(e,t,n){super(),this.type="CubeCamera",this.renderTarget=n,this.coordinateSystem=null;const i=new di(pi,1,e,t);i.layers=this.layers,this.add(i);const r=new di(pi,1,e,t);r.layers=this.layers,this.add(r);const a=new di(pi,1,e,t);a.layers=this.layers,this.add(a);const s=new di(pi,1,e,t);s.layers=this.layers,this.add(s);const o=new di(pi,1,e,t);o.layers=this.layers,this.add(o);const l=new di(pi,1,e,t);l.layers=this.layers,this.add(l)}updateCoordinateSystem(){const e=this.coordinateSystem,t=this.children.concat(),[n,i,r,a,s,o]=t;for(const l of t)this.remove(l);if(e===he)n.up.set(0,1,0),n.lookAt(1,0,0),i.up.set(0,1,0),i.lookAt(-1,0,0),r.up.set(0,0,-1),r.lookAt(0,1,0),a.up.set(0,0,1),a.lookAt(0,-1,0),s.up.set(0,1,0),s.lookAt(0,0,1),o.up.set(0,1,0),o.lookAt(0,0,-1);else{if(e!==de)throw new Error("THREE.CubeCamera.updateCoordinateSystem(): Invalid coordinate system: "+e);n.up.set(0,-1,0),n.lookAt(-1,0,0),i.up.set(0,-1,0),i.lookAt(1,0,0),r.up.set(0,0,1),r.lookAt(0,1,0),a.up.set(0,0,-1),a.lookAt(0,-1,0),s.up.set(0,-1,0),s.lookAt(0,0,1),o.up.set(0,-1,0),o.lookAt(0,0,-1)}for(const l of t)this.add(l),l.updateMatrixWorld()}update(e,t){null===this.parent&&this.updateMatrixWorld();const n=this.renderTarget;this.coordinateSystem!==e.coordinateSystem&&(this.coordinateSystem=e.coordinateSystem,this.updateCoordinateSystem());const[i,r,a,s,o,l]=this.children,c=e.getRenderTarget(),u=e.xr.enabled;e.xr.enabled=!1;const h=n.texture.generateMipmaps;n.texture.generateMipmaps=!1,e.setRenderTarget(n,0),e.render(t,i),e.setRenderTarget(n,1),e.render(t,r),e.setRenderTarget(n,2),e.render(t,a),e.setRenderTarget(n,3),e.render(t,s),e.setRenderTarget(n,4),e.render(t,o),n.texture.generateMipmaps=h,e.setRenderTarget(n,5),e.render(t,l),e.setRenderTarget(c),e.xr.enabled=u,n.texture.needsPMREMUpdate=!0}}class mi extends Ke{constructor(e,t,n,i,r,a,s,o,l,c){super(e=void 0!==e?e:[],t=void 0!==t?t:E,n,i,r,a,s,o,l,c),this.isCubeTexture=!0,this.flipY=!1}get images(){return this.image}set images(e){this.image=e}}class gi extends Qe{constructor(e=1,t={}){super(e,e,t),this.isWebGLCubeRenderTarget=!0;const n={width:e,height:e,depth:1},i=[n,n,n,n,n,n];void 0!==t.encoding&&(Ne("THREE.WebGLCubeRenderTarget: option.encoding has been replaced by option.colorSpace."),t.colorSpace=t.encoding===ne?re:ie),this.texture=new mi(i,t.mapping,t.wrapS,t.wrapT,t.magFilter,t.minFilter,t.format,t.type,t.anisotropy,t.colorSpace),this.texture.isRenderTargetTexture=!0,this.texture.generateMipmaps=void 0!==t.generateMipmaps&&t.generateMipmaps,this.texture.minFilter=void 0!==t.minFilter?t.minFilter:D}fromEquirectangularTexture(e,t){this.texture.type=t.type,this.texture.colorSpace=t.colorSpace,this.texture.generateMipmaps=t.generateMipmaps,this.texture.minFilter=t.minFilter,this.texture.magFilter=t.magFilter;const n={uniforms:{tEquirect:{value:null}},vertexShader:"\n\n\t\t\t\tvarying vec3 vWorldDirection;\n\n\t\t\t\tvec3 transformDirection( in vec3 dir, in mat4 matrix ) {\n\n\t\t\t\t\treturn normalize( ( matrix * vec4( dir, 0.0 ) ).xyz );\n\n\t\t\t\t}\n\n\t\t\t\tvoid main() {\n\n\t\t\t\t\tvWorldDirection = transformDirection( position, modelMatrix );\n\n\t\t\t\t\t#include \n\t\t\t\t\t#include \n\n\t\t\t\t}\n\t\t\t",fragmentShader:"\n\n\t\t\t\tuniform sampler2D tEquirect;\n\n\t\t\t\tvarying vec3 vWorldDirection;\n\n\t\t\t\t#include \n\n\t\t\t\tvoid main() {\n\n\t\t\t\t\tvec3 direction = normalize( vWorldDirection );\n\n\t\t\t\t\tvec2 sampleUV = equirectUv( direction );\n\n\t\t\t\t\tgl_FragColor = texture2D( tEquirect, sampleUV );\n\n\t\t\t\t}\n\t\t\t"},i=new ai(5,5,5),r=new ui({name:"CubemapFromEquirect",uniforms:si(n.uniforms),vertexShader:n.vertexShader,fragmentShader:n.fragmentShader,side:u,blending:0});r.uniforms.tEquirect.value=t;const a=new ii(i,r),s=t.minFilter;t.minFilter===I&&(t.minFilter=D);return new fi(1,10,this).update(e,a),t.minFilter=s,a.geometry.dispose(),a.material.dispose(),this}clear(e,t,n,i){const r=e.getRenderTarget();for(let a=0;a<6;a++)e.setRenderTarget(this,a),e.clear(t,n,i);e.setRenderTarget(r)}}const _i=new nt,vi=new nt,xi=new Ce;class Mi{constructor(e=new nt(1,0,0),t=0){this.isPlane=!0,this.normal=e,this.constant=t}set(e,t){return this.normal.copy(e),this.constant=t,this}setComponents(e,t,n,i){return this.normal.set(e,t,n),this.constant=i,this}setFromNormalAndCoplanarPoint(e,t){return this.normal.copy(e),this.constant=-t.dot(this.normal),this}setFromCoplanarPoints(e,t,n){const i=_i.subVectors(n,t).cross(vi.subVectors(e,t)).normalize();return this.setFromNormalAndCoplanarPoint(i,e),this}copy(e){return this.normal.copy(e.normal),this.constant=e.constant,this}normalize(){const e=1/this.normal.length();return this.normal.multiplyScalar(e),this.constant*=e,this}negate(){return this.constant*=-1,this.normal.negate(),this}distanceToPoint(e){return this.normal.dot(e)+this.constant}distanceToSphere(e){return this.distanceToPoint(e.center)-e.radius}projectPoint(e,t){return t.copy(e).addScaledVector(this.normal,-this.distanceToPoint(e))}intersectLine(e,t){const n=e.delta(_i),i=this.normal.dot(n);if(0===i)return 0===this.distanceToPoint(e.start)?t.copy(e.start):null;const r=-(e.start.dot(this.normal)+this.constant)/i;return r<0||r>1?null:t.copy(e.start).addScaledVector(n,r)}intersectsLine(e){const t=this.distanceToPoint(e.start),n=this.distanceToPoint(e.end);return t<0&&n>0||n<0&&t>0}intersectsBox(e){return e.intersectsPlane(this)}intersectsSphere(e){return e.intersectsPlane(this)}coplanarPoint(e){return e.copy(this.normal).multiplyScalar(-this.constant)}applyMatrix4(e,t){const n=t||xi.getNormalMatrix(e),i=this.coplanarPoint(_i).applyMatrix4(e),r=this.normal.applyMatrix3(n).normalize();return this.constant=-i.dot(r),this}translate(e){return this.constant-=e.dot(this.normal),this}equals(e){return e.normal.equals(this.normal)&&e.constant===this.constant}clone(){return(new this.constructor).copy(this)}}const yi=new St,Ei=new nt;class Si{constructor(e=new Mi,t=new Mi,n=new Mi,i=new Mi,r=new Mi,a=new Mi){this.planes=[e,t,n,i,r,a]}set(e,t,n,i,r,a){const s=this.planes;return s[0].copy(e),s[1].copy(t),s[2].copy(n),s[3].copy(i),s[4].copy(r),s[5].copy(a),this}copy(e){const t=this.planes;for(let n=0;n<6;n++)t[n].copy(e.planes[n]);return this}setFromProjectionMatrix(e,t=2e3){const n=this.planes,i=e.elements,r=i[0],a=i[1],s=i[2],o=i[3],l=i[4],c=i[5],u=i[6],h=i[7],d=i[8],p=i[9],f=i[10],m=i[11],g=i[12],_=i[13],v=i[14],x=i[15];if(n[0].setComponents(o-r,h-l,m-d,x-g).normalize(),n[1].setComponents(o+r,h+l,m+d,x+g).normalize(),n[2].setComponents(o+a,h+c,m+p,x+_).normalize(),n[3].setComponents(o-a,h-c,m-p,x-_).normalize(),n[4].setComponents(o-s,h-u,m-f,x-v).normalize(),t===he)n[5].setComponents(o+s,h+u,m+f,x+v).normalize();else{if(t!==de)throw new Error("THREE.Frustum.setFromProjectionMatrix(): Invalid coordinate system: "+t);n[5].setComponents(s,u,f,v).normalize()}return this}intersectsObject(e){if(void 0!==e.boundingSphere)null===e.boundingSphere&&e.computeBoundingSphere(),yi.copy(e.boundingSphere).applyMatrix4(e.matrixWorld);else{const t=e.geometry;null===t.boundingSphere&&t.computeBoundingSphere(),yi.copy(t.boundingSphere).applyMatrix4(e.matrixWorld)}return this.intersectsSphere(yi)}intersectsSprite(e){return yi.center.set(0,0,0),yi.radius=.7071067811865476,yi.applyMatrix4(e.matrixWorld),this.intersectsSphere(yi)}intersectsSphere(e){const t=this.planes,n=e.center,i=-e.radius;for(let r=0;r<6;r++){if(t[r].distanceToPoint(n)0?e.max.x:e.min.x,Ei.y=i.normal.y>0?e.max.y:e.min.y,Ei.z=i.normal.z>0?e.max.z:e.min.z,i.distanceToPoint(Ei)<0)return!1}return!0}containsPoint(e){const t=this.planes;for(let n=0;n<6;n++)if(t[n].distanceToPoint(e)<0)return!1;return!0}clone(){return(new this.constructor).copy(this)}}function Ti(){let e=null,t=!1,n=null,i=null;function r(t,a){n(t,a),i=e.requestAnimationFrame(r)}return{start:function(){!0!==t&&null!==n&&(i=e.requestAnimationFrame(r),t=!0)},stop:function(){e.cancelAnimationFrame(i),t=!1},setAnimationLoop:function(e){n=e},setContext:function(t){e=t}}}function bi(e,t){const n=t.isWebGL2,i=new WeakMap;return{get:function(e){return e.isInterleavedBufferAttribute&&(e=e.data),i.get(e)},remove:function(t){t.isInterleavedBufferAttribute&&(t=t.data);const n=i.get(t);n&&(e.deleteBuffer(n.buffer),i.delete(t))},update:function(t,r){if(t.isGLBufferAttribute){const e=i.get(t);return void((!e||e.version 0\n\tvec4 plane;\n\t#pragma unroll_loop_start\n\tfor ( int i = 0; i < UNION_CLIPPING_PLANES; i ++ ) {\n\t\tplane = clippingPlanes[ i ];\n\t\tif ( dot( vClipPosition, plane.xyz ) > plane.w ) discard;\n\t}\n\t#pragma unroll_loop_end\n\t#if UNION_CLIPPING_PLANES < NUM_CLIPPING_PLANES\n\t\tbool clipped = true;\n\t\t#pragma unroll_loop_start\n\t\tfor ( int i = UNION_CLIPPING_PLANES; i < NUM_CLIPPING_PLANES; i ++ ) {\n\t\t\tplane = clippingPlanes[ i ];\n\t\t\tclipped = ( dot( vClipPosition, plane.xyz ) > plane.w ) && clipped;\n\t\t}\n\t\t#pragma unroll_loop_end\n\t\tif ( clipped ) discard;\n\t#endif\n#endif",clipping_planes_pars_fragment:"#if NUM_CLIPPING_PLANES > 0\n\tvarying vec3 vClipPosition;\n\tuniform vec4 clippingPlanes[ NUM_CLIPPING_PLANES ];\n#endif",clipping_planes_pars_vertex:"#if NUM_CLIPPING_PLANES > 0\n\tvarying vec3 vClipPosition;\n#endif",clipping_planes_vertex:"#if NUM_CLIPPING_PLANES > 0\n\tvClipPosition = - mvPosition.xyz;\n#endif",color_fragment:"#if defined( USE_COLOR_ALPHA )\n\tdiffuseColor *= vColor;\n#elif defined( USE_COLOR )\n\tdiffuseColor.rgb *= vColor;\n#endif",color_pars_fragment:"#if defined( USE_COLOR_ALPHA )\n\tvarying vec4 vColor;\n#elif defined( USE_COLOR )\n\tvarying vec3 vColor;\n#endif",color_pars_vertex:"#if defined( USE_COLOR_ALPHA )\n\tvarying vec4 vColor;\n#elif defined( USE_COLOR ) || defined( USE_INSTANCING_COLOR )\n\tvarying vec3 vColor;\n#endif",color_vertex:"#if defined( USE_COLOR_ALPHA )\n\tvColor = vec4( 1.0 );\n#elif defined( USE_COLOR ) || defined( USE_INSTANCING_COLOR )\n\tvColor = vec3( 1.0 );\n#endif\n#ifdef USE_COLOR\n\tvColor *= color;\n#endif\n#ifdef USE_INSTANCING_COLOR\n\tvColor.xyz *= instanceColor.xyz;\n#endif",common:"#define PI 3.141592653589793\n#define PI2 6.283185307179586\n#define PI_HALF 1.5707963267948966\n#define RECIPROCAL_PI 0.3183098861837907\n#define RECIPROCAL_PI2 0.15915494309189535\n#define EPSILON 1e-6\n#ifndef saturate\n#define saturate( a ) clamp( a, 0.0, 1.0 )\n#endif\n#define whiteComplement( a ) ( 1.0 - saturate( a ) )\nfloat pow2( const in float x ) { return x*x; }\nvec3 pow2( const in vec3 x ) { return x*x; }\nfloat pow3( const in float x ) { return x*x*x; }\nfloat pow4( const in float x ) { float x2 = x*x; return x2*x2; }\nfloat max3( const in vec3 v ) { return max( max( v.x, v.y ), v.z ); }\nfloat average( const in vec3 v ) { return dot( v, vec3( 0.3333333 ) ); }\nhighp float rand( const in vec2 uv ) {\n\tconst highp float a = 12.9898, b = 78.233, c = 43758.5453;\n\thighp float dt = dot( uv.xy, vec2( a,b ) ), sn = mod( dt, PI );\n\treturn fract( sin( sn ) * c );\n}\n#ifdef HIGH_PRECISION\n\tfloat precisionSafeLength( vec3 v ) { return length( v ); }\n#else\n\tfloat precisionSafeLength( vec3 v ) {\n\t\tfloat maxComponent = max3( abs( v ) );\n\t\treturn length( v / maxComponent ) * maxComponent;\n\t}\n#endif\nstruct IncidentLight {\n\tvec3 color;\n\tvec3 direction;\n\tbool visible;\n};\nstruct ReflectedLight {\n\tvec3 directDiffuse;\n\tvec3 directSpecular;\n\tvec3 indirectDiffuse;\n\tvec3 indirectSpecular;\n};\nstruct GeometricContext {\n\tvec3 position;\n\tvec3 normal;\n\tvec3 viewDir;\n#ifdef USE_CLEARCOAT\n\tvec3 clearcoatNormal;\n#endif\n};\n#ifdef USE_ALPHAHASH\n\tvarying vec3 vPosition;\n#endif\nvec3 transformDirection( in vec3 dir, in mat4 matrix ) {\n\treturn normalize( ( matrix * vec4( dir, 0.0 ) ).xyz );\n}\nvec3 inverseTransformDirection( in vec3 dir, in mat4 matrix ) {\n\treturn normalize( ( vec4( dir, 0.0 ) * matrix ).xyz );\n}\nmat3 transposeMat3( const in mat3 m ) {\n\tmat3 tmp;\n\ttmp[ 0 ] = vec3( m[ 0 ].x, m[ 1 ].x, m[ 2 ].x );\n\ttmp[ 1 ] = vec3( m[ 0 ].y, m[ 1 ].y, m[ 2 ].y );\n\ttmp[ 2 ] = vec3( m[ 0 ].z, m[ 1 ].z, m[ 2 ].z );\n\treturn tmp;\n}\nfloat luminance( const in vec3 rgb ) {\n\tconst vec3 weights = vec3( 0.2126729, 0.7151522, 0.0721750 );\n\treturn dot( weights, rgb );\n}\nbool isPerspectiveMatrix( mat4 m ) {\n\treturn m[ 2 ][ 3 ] == - 1.0;\n}\nvec2 equirectUv( in vec3 dir ) {\n\tfloat u = atan( dir.z, dir.x ) * RECIPROCAL_PI2 + 0.5;\n\tfloat v = asin( clamp( dir.y, - 1.0, 1.0 ) ) * RECIPROCAL_PI + 0.5;\n\treturn vec2( u, v );\n}\nvec3 BRDF_Lambert( const in vec3 diffuseColor ) {\n\treturn RECIPROCAL_PI * diffuseColor;\n}\nvec3 F_Schlick( const in vec3 f0, const in float f90, const in float dotVH ) {\n\tfloat fresnel = exp2( ( - 5.55473 * dotVH - 6.98316 ) * dotVH );\n\treturn f0 * ( 1.0 - fresnel ) + ( f90 * fresnel );\n}\nfloat F_Schlick( const in float f0, const in float f90, const in float dotVH ) {\n\tfloat fresnel = exp2( ( - 5.55473 * dotVH - 6.98316 ) * dotVH );\n\treturn f0 * ( 1.0 - fresnel ) + ( f90 * fresnel );\n} // validated",cube_uv_reflection_fragment:"#ifdef ENVMAP_TYPE_CUBE_UV\n\t#define cubeUV_minMipLevel 4.0\n\t#define cubeUV_minTileSize 16.0\n\tfloat getFace( vec3 direction ) {\n\t\tvec3 absDirection = abs( direction );\n\t\tfloat face = - 1.0;\n\t\tif ( absDirection.x > absDirection.z ) {\n\t\t\tif ( absDirection.x > absDirection.y )\n\t\t\t\tface = direction.x > 0.0 ? 0.0 : 3.0;\n\t\t\telse\n\t\t\t\tface = direction.y > 0.0 ? 1.0 : 4.0;\n\t\t} else {\n\t\t\tif ( absDirection.z > absDirection.y )\n\t\t\t\tface = direction.z > 0.0 ? 2.0 : 5.0;\n\t\t\telse\n\t\t\t\tface = direction.y > 0.0 ? 1.0 : 4.0;\n\t\t}\n\t\treturn face;\n\t}\n\tvec2 getUV( vec3 direction, float face ) {\n\t\tvec2 uv;\n\t\tif ( face == 0.0 ) {\n\t\t\tuv = vec2( direction.z, direction.y ) / abs( direction.x );\n\t\t} else if ( face == 1.0 ) {\n\t\t\tuv = vec2( - direction.x, - direction.z ) / abs( direction.y );\n\t\t} else if ( face == 2.0 ) {\n\t\t\tuv = vec2( - direction.x, direction.y ) / abs( direction.z );\n\t\t} else if ( face == 3.0 ) {\n\t\t\tuv = vec2( - direction.z, direction.y ) / abs( direction.x );\n\t\t} else if ( face == 4.0 ) {\n\t\t\tuv = vec2( - direction.x, direction.z ) / abs( direction.y );\n\t\t} else {\n\t\t\tuv = vec2( direction.x, direction.y ) / abs( direction.z );\n\t\t}\n\t\treturn 0.5 * ( uv + 1.0 );\n\t}\n\tvec3 bilinearCubeUV( sampler2D envMap, vec3 direction, float mipInt ) {\n\t\tfloat face = getFace( direction );\n\t\tfloat filterInt = max( cubeUV_minMipLevel - mipInt, 0.0 );\n\t\tmipInt = max( mipInt, cubeUV_minMipLevel );\n\t\tfloat faceSize = exp2( mipInt );\n\t\thighp vec2 uv = getUV( direction, face ) * ( faceSize - 2.0 ) + 1.0;\n\t\tif ( face > 2.0 ) {\n\t\t\tuv.y += faceSize;\n\t\t\tface -= 3.0;\n\t\t}\n\t\tuv.x += face * faceSize;\n\t\tuv.x += filterInt * 3.0 * cubeUV_minTileSize;\n\t\tuv.y += 4.0 * ( exp2( CUBEUV_MAX_MIP ) - faceSize );\n\t\tuv.x *= CUBEUV_TEXEL_WIDTH;\n\t\tuv.y *= CUBEUV_TEXEL_HEIGHT;\n\t\t#ifdef texture2DGradEXT\n\t\t\treturn texture2DGradEXT( envMap, uv, vec2( 0.0 ), vec2( 0.0 ) ).rgb;\n\t\t#else\n\t\t\treturn texture2D( envMap, uv ).rgb;\n\t\t#endif\n\t}\n\t#define cubeUV_r0 1.0\n\t#define cubeUV_v0 0.339\n\t#define cubeUV_m0 - 2.0\n\t#define cubeUV_r1 0.8\n\t#define cubeUV_v1 0.276\n\t#define cubeUV_m1 - 1.0\n\t#define cubeUV_r4 0.4\n\t#define cubeUV_v4 0.046\n\t#define cubeUV_m4 2.0\n\t#define cubeUV_r5 0.305\n\t#define cubeUV_v5 0.016\n\t#define cubeUV_m5 3.0\n\t#define cubeUV_r6 0.21\n\t#define cubeUV_v6 0.0038\n\t#define cubeUV_m6 4.0\n\tfloat roughnessToMip( float roughness ) {\n\t\tfloat mip = 0.0;\n\t\tif ( roughness >= cubeUV_r1 ) {\n\t\t\tmip = ( cubeUV_r0 - roughness ) * ( cubeUV_m1 - cubeUV_m0 ) / ( cubeUV_r0 - cubeUV_r1 ) + cubeUV_m0;\n\t\t} else if ( roughness >= cubeUV_r4 ) {\n\t\t\tmip = ( cubeUV_r1 - roughness ) * ( cubeUV_m4 - cubeUV_m1 ) / ( cubeUV_r1 - cubeUV_r4 ) + cubeUV_m1;\n\t\t} else if ( roughness >= cubeUV_r5 ) {\n\t\t\tmip = ( cubeUV_r4 - roughness ) * ( cubeUV_m5 - cubeUV_m4 ) / ( cubeUV_r4 - cubeUV_r5 ) + cubeUV_m4;\n\t\t} else if ( roughness >= cubeUV_r6 ) {\n\t\t\tmip = ( cubeUV_r5 - roughness ) * ( cubeUV_m6 - cubeUV_m5 ) / ( cubeUV_r5 - cubeUV_r6 ) + cubeUV_m5;\n\t\t} else {\n\t\t\tmip = - 2.0 * log2( 1.16 * roughness );\t\t}\n\t\treturn mip;\n\t}\n\tvec4 textureCubeUV( sampler2D envMap, vec3 sampleDir, float roughness ) {\n\t\tfloat mip = clamp( roughnessToMip( roughness ), cubeUV_m0, CUBEUV_MAX_MIP );\n\t\tfloat mipF = fract( mip );\n\t\tfloat mipInt = floor( mip );\n\t\tvec3 color0 = bilinearCubeUV( envMap, sampleDir, mipInt );\n\t\tif ( mipF == 0.0 ) {\n\t\t\treturn vec4( color0, 1.0 );\n\t\t} else {\n\t\t\tvec3 color1 = bilinearCubeUV( envMap, sampleDir, mipInt + 1.0 );\n\t\t\treturn vec4( mix( color0, color1, mipF ), 1.0 );\n\t\t}\n\t}\n#endif",defaultnormal_vertex:"vec3 transformedNormal = objectNormal;\n#ifdef USE_INSTANCING\n\tmat3 m = mat3( instanceMatrix );\n\ttransformedNormal /= vec3( dot( m[ 0 ], m[ 0 ] ), dot( m[ 1 ], m[ 1 ] ), dot( m[ 2 ], m[ 2 ] ) );\n\ttransformedNormal = m * transformedNormal;\n#endif\ntransformedNormal = normalMatrix * transformedNormal;\n#ifdef FLIP_SIDED\n\ttransformedNormal = - transformedNormal;\n#endif\n#ifdef USE_TANGENT\n\tvec3 transformedTangent = ( modelViewMatrix * vec4( objectTangent, 0.0 ) ).xyz;\n\t#ifdef FLIP_SIDED\n\t\ttransformedTangent = - transformedTangent;\n\t#endif\n#endif",displacementmap_pars_vertex:"#ifdef USE_DISPLACEMENTMAP\n\tuniform sampler2D displacementMap;\n\tuniform float displacementScale;\n\tuniform float displacementBias;\n#endif",displacementmap_vertex:"#ifdef USE_DISPLACEMENTMAP\n\ttransformed += normalize( objectNormal ) * ( texture2D( displacementMap, vDisplacementMapUv ).x * displacementScale + displacementBias );\n#endif",emissivemap_fragment:"#ifdef USE_EMISSIVEMAP\n\tvec4 emissiveColor = texture2D( emissiveMap, vEmissiveMapUv );\n\ttotalEmissiveRadiance *= emissiveColor.rgb;\n#endif",emissivemap_pars_fragment:"#ifdef USE_EMISSIVEMAP\n\tuniform sampler2D emissiveMap;\n#endif",colorspace_fragment:"gl_FragColor = linearToOutputTexel( gl_FragColor );",colorspace_pars_fragment:"vec4 LinearToLinear( in vec4 value ) {\n\treturn value;\n}\nvec4 LinearTosRGB( in vec4 value ) {\n\treturn vec4( mix( pow( value.rgb, vec3( 0.41666 ) ) * 1.055 - vec3( 0.055 ), value.rgb * 12.92, vec3( lessThanEqual( value.rgb, vec3( 0.0031308 ) ) ) ), value.a );\n}",envmap_fragment:"#ifdef USE_ENVMAP\n\t#ifdef ENV_WORLDPOS\n\t\tvec3 cameraToFrag;\n\t\tif ( isOrthographic ) {\n\t\t\tcameraToFrag = normalize( vec3( - viewMatrix[ 0 ][ 2 ], - viewMatrix[ 1 ][ 2 ], - viewMatrix[ 2 ][ 2 ] ) );\n\t\t} else {\n\t\t\tcameraToFrag = normalize( vWorldPosition - cameraPosition );\n\t\t}\n\t\tvec3 worldNormal = inverseTransformDirection( normal, viewMatrix );\n\t\t#ifdef ENVMAP_MODE_REFLECTION\n\t\t\tvec3 reflectVec = reflect( cameraToFrag, worldNormal );\n\t\t#else\n\t\t\tvec3 reflectVec = refract( cameraToFrag, worldNormal, refractionRatio );\n\t\t#endif\n\t#else\n\t\tvec3 reflectVec = vReflect;\n\t#endif\n\t#ifdef ENVMAP_TYPE_CUBE\n\t\tvec4 envColor = textureCube( envMap, vec3( flipEnvMap * reflectVec.x, reflectVec.yz ) );\n\t#else\n\t\tvec4 envColor = vec4( 0.0 );\n\t#endif\n\t#ifdef ENVMAP_BLENDING_MULTIPLY\n\t\toutgoingLight = mix( outgoingLight, outgoingLight * envColor.xyz, specularStrength * reflectivity );\n\t#elif defined( ENVMAP_BLENDING_MIX )\n\t\toutgoingLight = mix( outgoingLight, envColor.xyz, specularStrength * reflectivity );\n\t#elif defined( ENVMAP_BLENDING_ADD )\n\t\toutgoingLight += envColor.xyz * specularStrength * reflectivity;\n\t#endif\n#endif",envmap_common_pars_fragment:"#ifdef USE_ENVMAP\n\tuniform float envMapIntensity;\n\tuniform float flipEnvMap;\n\t#ifdef ENVMAP_TYPE_CUBE\n\t\tuniform samplerCube envMap;\n\t#else\n\t\tuniform sampler2D envMap;\n\t#endif\n\t\n#endif",envmap_pars_fragment:"#ifdef USE_ENVMAP\n\tuniform float reflectivity;\n\t#if defined( USE_BUMPMAP ) || defined( USE_NORMALMAP ) || defined( PHONG ) || defined( LAMBERT )\n\t\t#define ENV_WORLDPOS\n\t#endif\n\t#ifdef ENV_WORLDPOS\n\t\tvarying vec3 vWorldPosition;\n\t\tuniform float refractionRatio;\n\t#else\n\t\tvarying vec3 vReflect;\n\t#endif\n#endif",envmap_pars_vertex:"#ifdef USE_ENVMAP\n\t#if defined( USE_BUMPMAP ) || defined( USE_NORMALMAP ) || defined( PHONG ) || defined( LAMBERT )\n\t\t#define ENV_WORLDPOS\n\t#endif\n\t#ifdef ENV_WORLDPOS\n\t\t\n\t\tvarying vec3 vWorldPosition;\n\t#else\n\t\tvarying vec3 vReflect;\n\t\tuniform float refractionRatio;\n\t#endif\n#endif",envmap_physical_pars_fragment:"#ifdef USE_ENVMAP\n\tvec3 getIBLIrradiance( const in vec3 normal ) {\n\t\t#ifdef ENVMAP_TYPE_CUBE_UV\n\t\t\tvec3 worldNormal = inverseTransformDirection( normal, viewMatrix );\n\t\t\tvec4 envMapColor = textureCubeUV( envMap, worldNormal, 1.0 );\n\t\t\treturn PI * envMapColor.rgb * envMapIntensity;\n\t\t#else\n\t\t\treturn vec3( 0.0 );\n\t\t#endif\n\t}\n\tvec3 getIBLRadiance( const in vec3 viewDir, const in vec3 normal, const in float roughness ) {\n\t\t#ifdef ENVMAP_TYPE_CUBE_UV\n\t\t\tvec3 reflectVec = reflect( - viewDir, normal );\n\t\t\treflectVec = normalize( mix( reflectVec, normal, roughness * roughness) );\n\t\t\treflectVec = inverseTransformDirection( reflectVec, viewMatrix );\n\t\t\tvec4 envMapColor = textureCubeUV( envMap, reflectVec, roughness );\n\t\t\treturn envMapColor.rgb * envMapIntensity;\n\t\t#else\n\t\t\treturn vec3( 0.0 );\n\t\t#endif\n\t}\n\t#ifdef USE_ANISOTROPY\n\t\tvec3 getIBLAnisotropyRadiance( const in vec3 viewDir, const in vec3 normal, const in float roughness, const in vec3 bitangent, const in float anisotropy ) {\n\t\t\t#ifdef ENVMAP_TYPE_CUBE_UV\n\t\t\t\tvec3 bentNormal = cross( bitangent, viewDir );\n\t\t\t\tbentNormal = normalize( cross( bentNormal, bitangent ) );\n\t\t\t\tbentNormal = normalize( mix( bentNormal, normal, pow2( pow2( 1.0 - anisotropy * ( 1.0 - roughness ) ) ) ) );\n\t\t\t\treturn getIBLRadiance( viewDir, bentNormal, roughness );\n\t\t\t#else\n\t\t\t\treturn vec3( 0.0 );\n\t\t\t#endif\n\t\t}\n\t#endif\n#endif",envmap_vertex:"#ifdef USE_ENVMAP\n\t#ifdef ENV_WORLDPOS\n\t\tvWorldPosition = worldPosition.xyz;\n\t#else\n\t\tvec3 cameraToVertex;\n\t\tif ( isOrthographic ) {\n\t\t\tcameraToVertex = normalize( vec3( - viewMatrix[ 0 ][ 2 ], - viewMatrix[ 1 ][ 2 ], - viewMatrix[ 2 ][ 2 ] ) );\n\t\t} else {\n\t\t\tcameraToVertex = normalize( worldPosition.xyz - cameraPosition );\n\t\t}\n\t\tvec3 worldNormal = inverseTransformDirection( transformedNormal, viewMatrix );\n\t\t#ifdef ENVMAP_MODE_REFLECTION\n\t\t\tvReflect = reflect( cameraToVertex, worldNormal );\n\t\t#else\n\t\t\tvReflect = refract( cameraToVertex, worldNormal, refractionRatio );\n\t\t#endif\n\t#endif\n#endif",fog_vertex:"#ifdef USE_FOG\n\tvFogDepth = - mvPosition.z;\n#endif",fog_pars_vertex:"#ifdef USE_FOG\n\tvarying float vFogDepth;\n#endif",fog_fragment:"#ifdef USE_FOG\n\t#ifdef FOG_EXP2\n\t\tfloat fogFactor = 1.0 - exp( - fogDensity * fogDensity * vFogDepth * vFogDepth );\n\t#else\n\t\tfloat fogFactor = smoothstep( fogNear, fogFar, vFogDepth );\n\t#endif\n\tgl_FragColor.rgb = mix( gl_FragColor.rgb, fogColor, fogFactor );\n#endif",fog_pars_fragment:"#ifdef USE_FOG\n\tuniform vec3 fogColor;\n\tvarying float vFogDepth;\n\t#ifdef FOG_EXP2\n\t\tuniform float fogDensity;\n\t#else\n\t\tuniform float fogNear;\n\t\tuniform float fogFar;\n\t#endif\n#endif",gradientmap_pars_fragment:"#ifdef USE_GRADIENTMAP\n\tuniform sampler2D gradientMap;\n#endif\nvec3 getGradientIrradiance( vec3 normal, vec3 lightDirection ) {\n\tfloat dotNL = dot( normal, lightDirection );\n\tvec2 coord = vec2( dotNL * 0.5 + 0.5, 0.0 );\n\t#ifdef USE_GRADIENTMAP\n\t\treturn vec3( texture2D( gradientMap, coord ).r );\n\t#else\n\t\tvec2 fw = fwidth( coord ) * 0.5;\n\t\treturn mix( vec3( 0.7 ), vec3( 1.0 ), smoothstep( 0.7 - fw.x, 0.7 + fw.x, coord.x ) );\n\t#endif\n}",lightmap_fragment:"#ifdef USE_LIGHTMAP\n\tvec4 lightMapTexel = texture2D( lightMap, vLightMapUv );\n\tvec3 lightMapIrradiance = lightMapTexel.rgb * lightMapIntensity;\n\treflectedLight.indirectDiffuse += lightMapIrradiance;\n#endif",lightmap_pars_fragment:"#ifdef USE_LIGHTMAP\n\tuniform sampler2D lightMap;\n\tuniform float lightMapIntensity;\n#endif",lights_lambert_fragment:"LambertMaterial material;\nmaterial.diffuseColor = diffuseColor.rgb;\nmaterial.specularStrength = specularStrength;",lights_lambert_pars_fragment:"varying vec3 vViewPosition;\nstruct LambertMaterial {\n\tvec3 diffuseColor;\n\tfloat specularStrength;\n};\nvoid RE_Direct_Lambert( const in IncidentLight directLight, const in GeometricContext geometry, const in LambertMaterial material, inout ReflectedLight reflectedLight ) {\n\tfloat dotNL = saturate( dot( geometry.normal, directLight.direction ) );\n\tvec3 irradiance = dotNL * directLight.color;\n\treflectedLight.directDiffuse += irradiance * BRDF_Lambert( material.diffuseColor );\n}\nvoid RE_IndirectDiffuse_Lambert( const in vec3 irradiance, const in GeometricContext geometry, const in LambertMaterial material, inout ReflectedLight reflectedLight ) {\n\treflectedLight.indirectDiffuse += irradiance * BRDF_Lambert( material.diffuseColor );\n}\n#define RE_Direct\t\t\t\tRE_Direct_Lambert\n#define RE_IndirectDiffuse\t\tRE_IndirectDiffuse_Lambert",lights_pars_begin:"uniform bool receiveShadow;\nuniform vec3 ambientLightColor;\nuniform vec3 lightProbe[ 9 ];\nvec3 shGetIrradianceAt( in vec3 normal, in vec3 shCoefficients[ 9 ] ) {\n\tfloat x = normal.x, y = normal.y, z = normal.z;\n\tvec3 result = shCoefficients[ 0 ] * 0.886227;\n\tresult += shCoefficients[ 1 ] * 2.0 * 0.511664 * y;\n\tresult += shCoefficients[ 2 ] * 2.0 * 0.511664 * z;\n\tresult += shCoefficients[ 3 ] * 2.0 * 0.511664 * x;\n\tresult += shCoefficients[ 4 ] * 2.0 * 0.429043 * x * y;\n\tresult += shCoefficients[ 5 ] * 2.0 * 0.429043 * y * z;\n\tresult += shCoefficients[ 6 ] * ( 0.743125 * z * z - 0.247708 );\n\tresult += shCoefficients[ 7 ] * 2.0 * 0.429043 * x * z;\n\tresult += shCoefficients[ 8 ] * 0.429043 * ( x * x - y * y );\n\treturn result;\n}\nvec3 getLightProbeIrradiance( const in vec3 lightProbe[ 9 ], const in vec3 normal ) {\n\tvec3 worldNormal = inverseTransformDirection( normal, viewMatrix );\n\tvec3 irradiance = shGetIrradianceAt( worldNormal, lightProbe );\n\treturn irradiance;\n}\nvec3 getAmbientLightIrradiance( const in vec3 ambientLightColor ) {\n\tvec3 irradiance = ambientLightColor;\n\treturn irradiance;\n}\nfloat getDistanceAttenuation( const in float lightDistance, const in float cutoffDistance, const in float decayExponent ) {\n\t#if defined ( LEGACY_LIGHTS )\n\t\tif ( cutoffDistance > 0.0 && decayExponent > 0.0 ) {\n\t\t\treturn pow( saturate( - lightDistance / cutoffDistance + 1.0 ), decayExponent );\n\t\t}\n\t\treturn 1.0;\n\t#else\n\t\tfloat distanceFalloff = 1.0 / max( pow( lightDistance, decayExponent ), 0.01 );\n\t\tif ( cutoffDistance > 0.0 ) {\n\t\t\tdistanceFalloff *= pow2( saturate( 1.0 - pow4( lightDistance / cutoffDistance ) ) );\n\t\t}\n\t\treturn distanceFalloff;\n\t#endif\n}\nfloat getSpotAttenuation( const in float coneCosine, const in float penumbraCosine, const in float angleCosine ) {\n\treturn smoothstep( coneCosine, penumbraCosine, angleCosine );\n}\n#if NUM_DIR_LIGHTS > 0\n\tstruct DirectionalLight {\n\t\tvec3 direction;\n\t\tvec3 color;\n\t};\n\tuniform DirectionalLight directionalLights[ NUM_DIR_LIGHTS ];\n\tvoid getDirectionalLightInfo( const in DirectionalLight directionalLight, const in GeometricContext geometry, out IncidentLight light ) {\n\t\tlight.color = directionalLight.color;\n\t\tlight.direction = directionalLight.direction;\n\t\tlight.visible = true;\n\t}\n#endif\n#if NUM_POINT_LIGHTS > 0\n\tstruct PointLight {\n\t\tvec3 position;\n\t\tvec3 color;\n\t\tfloat distance;\n\t\tfloat decay;\n\t};\n\tuniform PointLight pointLights[ NUM_POINT_LIGHTS ];\n\tvoid getPointLightInfo( const in PointLight pointLight, const in GeometricContext geometry, out IncidentLight light ) {\n\t\tvec3 lVector = pointLight.position - geometry.position;\n\t\tlight.direction = normalize( lVector );\n\t\tfloat lightDistance = length( lVector );\n\t\tlight.color = pointLight.color;\n\t\tlight.color *= getDistanceAttenuation( lightDistance, pointLight.distance, pointLight.decay );\n\t\tlight.visible = ( light.color != vec3( 0.0 ) );\n\t}\n#endif\n#if NUM_SPOT_LIGHTS > 0\n\tstruct SpotLight {\n\t\tvec3 position;\n\t\tvec3 direction;\n\t\tvec3 color;\n\t\tfloat distance;\n\t\tfloat decay;\n\t\tfloat coneCos;\n\t\tfloat penumbraCos;\n\t};\n\tuniform SpotLight spotLights[ NUM_SPOT_LIGHTS ];\n\tvoid getSpotLightInfo( const in SpotLight spotLight, const in GeometricContext geometry, out IncidentLight light ) {\n\t\tvec3 lVector = spotLight.position - geometry.position;\n\t\tlight.direction = normalize( lVector );\n\t\tfloat angleCos = dot( light.direction, spotLight.direction );\n\t\tfloat spotAttenuation = getSpotAttenuation( spotLight.coneCos, spotLight.penumbraCos, angleCos );\n\t\tif ( spotAttenuation > 0.0 ) {\n\t\t\tfloat lightDistance = length( lVector );\n\t\t\tlight.color = spotLight.color * spotAttenuation;\n\t\t\tlight.color *= getDistanceAttenuation( lightDistance, spotLight.distance, spotLight.decay );\n\t\t\tlight.visible = ( light.color != vec3( 0.0 ) );\n\t\t} else {\n\t\t\tlight.color = vec3( 0.0 );\n\t\t\tlight.visible = false;\n\t\t}\n\t}\n#endif\n#if NUM_RECT_AREA_LIGHTS > 0\n\tstruct RectAreaLight {\n\t\tvec3 color;\n\t\tvec3 position;\n\t\tvec3 halfWidth;\n\t\tvec3 halfHeight;\n\t};\n\tuniform sampler2D ltc_1;\tuniform sampler2D ltc_2;\n\tuniform RectAreaLight rectAreaLights[ NUM_RECT_AREA_LIGHTS ];\n#endif\n#if NUM_HEMI_LIGHTS > 0\n\tstruct HemisphereLight {\n\t\tvec3 direction;\n\t\tvec3 skyColor;\n\t\tvec3 groundColor;\n\t};\n\tuniform HemisphereLight hemisphereLights[ NUM_HEMI_LIGHTS ];\n\tvec3 getHemisphereLightIrradiance( const in HemisphereLight hemiLight, const in vec3 normal ) {\n\t\tfloat dotNL = dot( normal, hemiLight.direction );\n\t\tfloat hemiDiffuseWeight = 0.5 * dotNL + 0.5;\n\t\tvec3 irradiance = mix( hemiLight.groundColor, hemiLight.skyColor, hemiDiffuseWeight );\n\t\treturn irradiance;\n\t}\n#endif",lights_toon_fragment:"ToonMaterial material;\nmaterial.diffuseColor = diffuseColor.rgb;",lights_toon_pars_fragment:"varying vec3 vViewPosition;\nstruct ToonMaterial {\n\tvec3 diffuseColor;\n};\nvoid RE_Direct_Toon( const in IncidentLight directLight, const in GeometricContext geometry, const in ToonMaterial material, inout ReflectedLight reflectedLight ) {\n\tvec3 irradiance = getGradientIrradiance( geometry.normal, directLight.direction ) * directLight.color;\n\treflectedLight.directDiffuse += irradiance * BRDF_Lambert( material.diffuseColor );\n}\nvoid RE_IndirectDiffuse_Toon( const in vec3 irradiance, const in GeometricContext geometry, const in ToonMaterial material, inout ReflectedLight reflectedLight ) {\n\treflectedLight.indirectDiffuse += irradiance * BRDF_Lambert( material.diffuseColor );\n}\n#define RE_Direct\t\t\t\tRE_Direct_Toon\n#define RE_IndirectDiffuse\t\tRE_IndirectDiffuse_Toon",lights_phong_fragment:"BlinnPhongMaterial material;\nmaterial.diffuseColor = diffuseColor.rgb;\nmaterial.specularColor = specular;\nmaterial.specularShininess = shininess;\nmaterial.specularStrength = specularStrength;",lights_phong_pars_fragment:"varying vec3 vViewPosition;\nstruct BlinnPhongMaterial {\n\tvec3 diffuseColor;\n\tvec3 specularColor;\n\tfloat specularShininess;\n\tfloat specularStrength;\n};\nvoid RE_Direct_BlinnPhong( const in IncidentLight directLight, const in GeometricContext geometry, const in BlinnPhongMaterial material, inout ReflectedLight reflectedLight ) {\n\tfloat dotNL = saturate( dot( geometry.normal, directLight.direction ) );\n\tvec3 irradiance = dotNL * directLight.color;\n\treflectedLight.directDiffuse += irradiance * BRDF_Lambert( material.diffuseColor );\n\treflectedLight.directSpecular += irradiance * BRDF_BlinnPhong( directLight.direction, geometry.viewDir, geometry.normal, material.specularColor, material.specularShininess ) * material.specularStrength;\n}\nvoid RE_IndirectDiffuse_BlinnPhong( const in vec3 irradiance, const in GeometricContext geometry, const in BlinnPhongMaterial material, inout ReflectedLight reflectedLight ) {\n\treflectedLight.indirectDiffuse += irradiance * BRDF_Lambert( material.diffuseColor );\n}\n#define RE_Direct\t\t\t\tRE_Direct_BlinnPhong\n#define RE_IndirectDiffuse\t\tRE_IndirectDiffuse_BlinnPhong",lights_physical_fragment:"PhysicalMaterial material;\nmaterial.diffuseColor = diffuseColor.rgb * ( 1.0 - metalnessFactor );\nvec3 dxy = max( abs( dFdx( geometryNormal ) ), abs( dFdy( geometryNormal ) ) );\nfloat geometryRoughness = max( max( dxy.x, dxy.y ), dxy.z );\nmaterial.roughness = max( roughnessFactor, 0.0525 );material.roughness += geometryRoughness;\nmaterial.roughness = min( material.roughness, 1.0 );\n#ifdef IOR\n\tmaterial.ior = ior;\n\t#ifdef USE_SPECULAR\n\t\tfloat specularIntensityFactor = specularIntensity;\n\t\tvec3 specularColorFactor = specularColor;\n\t\t#ifdef USE_SPECULAR_COLORMAP\n\t\t\tspecularColorFactor *= texture2D( specularColorMap, vSpecularColorMapUv ).rgb;\n\t\t#endif\n\t\t#ifdef USE_SPECULAR_INTENSITYMAP\n\t\t\tspecularIntensityFactor *= texture2D( specularIntensityMap, vSpecularIntensityMapUv ).a;\n\t\t#endif\n\t\tmaterial.specularF90 = mix( specularIntensityFactor, 1.0, metalnessFactor );\n\t#else\n\t\tfloat specularIntensityFactor = 1.0;\n\t\tvec3 specularColorFactor = vec3( 1.0 );\n\t\tmaterial.specularF90 = 1.0;\n\t#endif\n\tmaterial.specularColor = mix( min( pow2( ( material.ior - 1.0 ) / ( material.ior + 1.0 ) ) * specularColorFactor, vec3( 1.0 ) ) * specularIntensityFactor, diffuseColor.rgb, metalnessFactor );\n#else\n\tmaterial.specularColor = mix( vec3( 0.04 ), diffuseColor.rgb, metalnessFactor );\n\tmaterial.specularF90 = 1.0;\n#endif\n#ifdef USE_CLEARCOAT\n\tmaterial.clearcoat = clearcoat;\n\tmaterial.clearcoatRoughness = clearcoatRoughness;\n\tmaterial.clearcoatF0 = vec3( 0.04 );\n\tmaterial.clearcoatF90 = 1.0;\n\t#ifdef USE_CLEARCOATMAP\n\t\tmaterial.clearcoat *= texture2D( clearcoatMap, vClearcoatMapUv ).x;\n\t#endif\n\t#ifdef USE_CLEARCOAT_ROUGHNESSMAP\n\t\tmaterial.clearcoatRoughness *= texture2D( clearcoatRoughnessMap, vClearcoatRoughnessMapUv ).y;\n\t#endif\n\tmaterial.clearcoat = saturate( material.clearcoat );\tmaterial.clearcoatRoughness = max( material.clearcoatRoughness, 0.0525 );\n\tmaterial.clearcoatRoughness += geometryRoughness;\n\tmaterial.clearcoatRoughness = min( material.clearcoatRoughness, 1.0 );\n#endif\n#ifdef USE_IRIDESCENCE\n\tmaterial.iridescence = iridescence;\n\tmaterial.iridescenceIOR = iridescenceIOR;\n\t#ifdef USE_IRIDESCENCEMAP\n\t\tmaterial.iridescence *= texture2D( iridescenceMap, vIridescenceMapUv ).r;\n\t#endif\n\t#ifdef USE_IRIDESCENCE_THICKNESSMAP\n\t\tmaterial.iridescenceThickness = (iridescenceThicknessMaximum - iridescenceThicknessMinimum) * texture2D( iridescenceThicknessMap, vIridescenceThicknessMapUv ).g + iridescenceThicknessMinimum;\n\t#else\n\t\tmaterial.iridescenceThickness = iridescenceThicknessMaximum;\n\t#endif\n#endif\n#ifdef USE_SHEEN\n\tmaterial.sheenColor = sheenColor;\n\t#ifdef USE_SHEEN_COLORMAP\n\t\tmaterial.sheenColor *= texture2D( sheenColorMap, vSheenColorMapUv ).rgb;\n\t#endif\n\tmaterial.sheenRoughness = clamp( sheenRoughness, 0.07, 1.0 );\n\t#ifdef USE_SHEEN_ROUGHNESSMAP\n\t\tmaterial.sheenRoughness *= texture2D( sheenRoughnessMap, vSheenRoughnessMapUv ).a;\n\t#endif\n#endif\n#ifdef USE_ANISOTROPY\n\t#ifdef USE_ANISOTROPYMAP\n\t\tmat2 anisotropyMat = mat2( anisotropyVector.x, anisotropyVector.y, - anisotropyVector.y, anisotropyVector.x );\n\t\tvec3 anisotropyPolar = texture2D( anisotropyMap, vAnisotropyMapUv ).rgb;\n\t\tvec2 anisotropyV = anisotropyMat * normalize( 2.0 * anisotropyPolar.rg - vec2( 1.0 ) ) * anisotropyPolar.b;\n\t#else\n\t\tvec2 anisotropyV = anisotropyVector;\n\t#endif\n\tmaterial.anisotropy = length( anisotropyV );\n\tanisotropyV /= material.anisotropy;\n\tmaterial.anisotropy = saturate( material.anisotropy );\n\tmaterial.alphaT = mix( pow2( material.roughness ), 1.0, pow2( material.anisotropy ) );\n\tmaterial.anisotropyT = tbn[ 0 ] * anisotropyV.x - tbn[ 1 ] * anisotropyV.y;\n\tmaterial.anisotropyB = tbn[ 1 ] * anisotropyV.x + tbn[ 0 ] * anisotropyV.y;\n#endif",lights_physical_pars_fragment:"struct PhysicalMaterial {\n\tvec3 diffuseColor;\n\tfloat roughness;\n\tvec3 specularColor;\n\tfloat specularF90;\n\t#ifdef USE_CLEARCOAT\n\t\tfloat clearcoat;\n\t\tfloat clearcoatRoughness;\n\t\tvec3 clearcoatF0;\n\t\tfloat clearcoatF90;\n\t#endif\n\t#ifdef USE_IRIDESCENCE\n\t\tfloat iridescence;\n\t\tfloat iridescenceIOR;\n\t\tfloat iridescenceThickness;\n\t\tvec3 iridescenceFresnel;\n\t\tvec3 iridescenceF0;\n\t#endif\n\t#ifdef USE_SHEEN\n\t\tvec3 sheenColor;\n\t\tfloat sheenRoughness;\n\t#endif\n\t#ifdef IOR\n\t\tfloat ior;\n\t#endif\n\t#ifdef USE_TRANSMISSION\n\t\tfloat transmission;\n\t\tfloat transmissionAlpha;\n\t\tfloat thickness;\n\t\tfloat attenuationDistance;\n\t\tvec3 attenuationColor;\n\t#endif\n\t#ifdef USE_ANISOTROPY\n\t\tfloat anisotropy;\n\t\tfloat alphaT;\n\t\tvec3 anisotropyT;\n\t\tvec3 anisotropyB;\n\t#endif\n};\nvec3 clearcoatSpecular = vec3( 0.0 );\nvec3 sheenSpecular = vec3( 0.0 );\nvec3 Schlick_to_F0( const in vec3 f, const in float f90, const in float dotVH ) {\n float x = clamp( 1.0 - dotVH, 0.0, 1.0 );\n float x2 = x * x;\n float x5 = clamp( x * x2 * x2, 0.0, 0.9999 );\n return ( f - vec3( f90 ) * x5 ) / ( 1.0 - x5 );\n}\nfloat V_GGX_SmithCorrelated( const in float alpha, const in float dotNL, const in float dotNV ) {\n\tfloat a2 = pow2( alpha );\n\tfloat gv = dotNL * sqrt( a2 + ( 1.0 - a2 ) * pow2( dotNV ) );\n\tfloat gl = dotNV * sqrt( a2 + ( 1.0 - a2 ) * pow2( dotNL ) );\n\treturn 0.5 / max( gv + gl, EPSILON );\n}\nfloat D_GGX( const in float alpha, const in float dotNH ) {\n\tfloat a2 = pow2( alpha );\n\tfloat denom = pow2( dotNH ) * ( a2 - 1.0 ) + 1.0;\n\treturn RECIPROCAL_PI * a2 / pow2( denom );\n}\n#ifdef USE_ANISOTROPY\n\tfloat V_GGX_SmithCorrelated_Anisotropic( const in float alphaT, const in float alphaB, const in float dotTV, const in float dotBV, const in float dotTL, const in float dotBL, const in float dotNV, const in float dotNL ) {\n\t\tfloat gv = dotNL * length( vec3( alphaT * dotTV, alphaB * dotBV, dotNV ) );\n\t\tfloat gl = dotNV * length( vec3( alphaT * dotTL, alphaB * dotBL, dotNL ) );\n\t\tfloat v = 0.5 / ( gv + gl );\n\t\treturn saturate(v);\n\t}\n\tfloat D_GGX_Anisotropic( const in float alphaT, const in float alphaB, const in float dotNH, const in float dotTH, const in float dotBH ) {\n\t\tfloat a2 = alphaT * alphaB;\n\t\thighp vec3 v = vec3( alphaB * dotTH, alphaT * dotBH, a2 * dotNH );\n\t\thighp float v2 = dot( v, v );\n\t\tfloat w2 = a2 / v2;\n\t\treturn RECIPROCAL_PI * a2 * pow2 ( w2 );\n\t}\n#endif\n#ifdef USE_CLEARCOAT\n\tvec3 BRDF_GGX_Clearcoat( const in vec3 lightDir, const in vec3 viewDir, const in vec3 normal, const in PhysicalMaterial material) {\n\t\tvec3 f0 = material.clearcoatF0;\n\t\tfloat f90 = material.clearcoatF90;\n\t\tfloat roughness = material.clearcoatRoughness;\n\t\tfloat alpha = pow2( roughness );\n\t\tvec3 halfDir = normalize( lightDir + viewDir );\n\t\tfloat dotNL = saturate( dot( normal, lightDir ) );\n\t\tfloat dotNV = saturate( dot( normal, viewDir ) );\n\t\tfloat dotNH = saturate( dot( normal, halfDir ) );\n\t\tfloat dotVH = saturate( dot( viewDir, halfDir ) );\n\t\tvec3 F = F_Schlick( f0, f90, dotVH );\n\t\tfloat V = V_GGX_SmithCorrelated( alpha, dotNL, dotNV );\n\t\tfloat D = D_GGX( alpha, dotNH );\n\t\treturn F * ( V * D );\n\t}\n#endif\nvec3 BRDF_GGX( const in vec3 lightDir, const in vec3 viewDir, const in vec3 normal, const in PhysicalMaterial material ) {\n\tvec3 f0 = material.specularColor;\n\tfloat f90 = material.specularF90;\n\tfloat roughness = material.roughness;\n\tfloat alpha = pow2( roughness );\n\tvec3 halfDir = normalize( lightDir + viewDir );\n\tfloat dotNL = saturate( dot( normal, lightDir ) );\n\tfloat dotNV = saturate( dot( normal, viewDir ) );\n\tfloat dotNH = saturate( dot( normal, halfDir ) );\n\tfloat dotVH = saturate( dot( viewDir, halfDir ) );\n\tvec3 F = F_Schlick( f0, f90, dotVH );\n\t#ifdef USE_IRIDESCENCE\n\t\tF = mix( F, material.iridescenceFresnel, material.iridescence );\n\t#endif\n\t#ifdef USE_ANISOTROPY\n\t\tfloat dotTL = dot( material.anisotropyT, lightDir );\n\t\tfloat dotTV = dot( material.anisotropyT, viewDir );\n\t\tfloat dotTH = dot( material.anisotropyT, halfDir );\n\t\tfloat dotBL = dot( material.anisotropyB, lightDir );\n\t\tfloat dotBV = dot( material.anisotropyB, viewDir );\n\t\tfloat dotBH = dot( material.anisotropyB, halfDir );\n\t\tfloat V = V_GGX_SmithCorrelated_Anisotropic( material.alphaT, alpha, dotTV, dotBV, dotTL, dotBL, dotNV, dotNL );\n\t\tfloat D = D_GGX_Anisotropic( material.alphaT, alpha, dotNH, dotTH, dotBH );\n\t#else\n\t\tfloat V = V_GGX_SmithCorrelated( alpha, dotNL, dotNV );\n\t\tfloat D = D_GGX( alpha, dotNH );\n\t#endif\n\treturn F * ( V * D );\n}\nvec2 LTC_Uv( const in vec3 N, const in vec3 V, const in float roughness ) {\n\tconst float LUT_SIZE = 64.0;\n\tconst float LUT_SCALE = ( LUT_SIZE - 1.0 ) / LUT_SIZE;\n\tconst float LUT_BIAS = 0.5 / LUT_SIZE;\n\tfloat dotNV = saturate( dot( N, V ) );\n\tvec2 uv = vec2( roughness, sqrt( 1.0 - dotNV ) );\n\tuv = uv * LUT_SCALE + LUT_BIAS;\n\treturn uv;\n}\nfloat LTC_ClippedSphereFormFactor( const in vec3 f ) {\n\tfloat l = length( f );\n\treturn max( ( l * l + f.z ) / ( l + 1.0 ), 0.0 );\n}\nvec3 LTC_EdgeVectorFormFactor( const in vec3 v1, const in vec3 v2 ) {\n\tfloat x = dot( v1, v2 );\n\tfloat y = abs( x );\n\tfloat a = 0.8543985 + ( 0.4965155 + 0.0145206 * y ) * y;\n\tfloat b = 3.4175940 + ( 4.1616724 + y ) * y;\n\tfloat v = a / b;\n\tfloat theta_sintheta = ( x > 0.0 ) ? v : 0.5 * inversesqrt( max( 1.0 - x * x, 1e-7 ) ) - v;\n\treturn cross( v1, v2 ) * theta_sintheta;\n}\nvec3 LTC_Evaluate( const in vec3 N, const in vec3 V, const in vec3 P, const in mat3 mInv, const in vec3 rectCoords[ 4 ] ) {\n\tvec3 v1 = rectCoords[ 1 ] - rectCoords[ 0 ];\n\tvec3 v2 = rectCoords[ 3 ] - rectCoords[ 0 ];\n\tvec3 lightNormal = cross( v1, v2 );\n\tif( dot( lightNormal, P - rectCoords[ 0 ] ) < 0.0 ) return vec3( 0.0 );\n\tvec3 T1, T2;\n\tT1 = normalize( V - N * dot( V, N ) );\n\tT2 = - cross( N, T1 );\n\tmat3 mat = mInv * transposeMat3( mat3( T1, T2, N ) );\n\tvec3 coords[ 4 ];\n\tcoords[ 0 ] = mat * ( rectCoords[ 0 ] - P );\n\tcoords[ 1 ] = mat * ( rectCoords[ 1 ] - P );\n\tcoords[ 2 ] = mat * ( rectCoords[ 2 ] - P );\n\tcoords[ 3 ] = mat * ( rectCoords[ 3 ] - P );\n\tcoords[ 0 ] = normalize( coords[ 0 ] );\n\tcoords[ 1 ] = normalize( coords[ 1 ] );\n\tcoords[ 2 ] = normalize( coords[ 2 ] );\n\tcoords[ 3 ] = normalize( coords[ 3 ] );\n\tvec3 vectorFormFactor = vec3( 0.0 );\n\tvectorFormFactor += LTC_EdgeVectorFormFactor( coords[ 0 ], coords[ 1 ] );\n\tvectorFormFactor += LTC_EdgeVectorFormFactor( coords[ 1 ], coords[ 2 ] );\n\tvectorFormFactor += LTC_EdgeVectorFormFactor( coords[ 2 ], coords[ 3 ] );\n\tvectorFormFactor += LTC_EdgeVectorFormFactor( coords[ 3 ], coords[ 0 ] );\n\tfloat result = LTC_ClippedSphereFormFactor( vectorFormFactor );\n\treturn vec3( result );\n}\n#if defined( USE_SHEEN )\nfloat D_Charlie( float roughness, float dotNH ) {\n\tfloat alpha = pow2( roughness );\n\tfloat invAlpha = 1.0 / alpha;\n\tfloat cos2h = dotNH * dotNH;\n\tfloat sin2h = max( 1.0 - cos2h, 0.0078125 );\n\treturn ( 2.0 + invAlpha ) * pow( sin2h, invAlpha * 0.5 ) / ( 2.0 * PI );\n}\nfloat V_Neubelt( float dotNV, float dotNL ) {\n\treturn saturate( 1.0 / ( 4.0 * ( dotNL + dotNV - dotNL * dotNV ) ) );\n}\nvec3 BRDF_Sheen( const in vec3 lightDir, const in vec3 viewDir, const in vec3 normal, vec3 sheenColor, const in float sheenRoughness ) {\n\tvec3 halfDir = normalize( lightDir + viewDir );\n\tfloat dotNL = saturate( dot( normal, lightDir ) );\n\tfloat dotNV = saturate( dot( normal, viewDir ) );\n\tfloat dotNH = saturate( dot( normal, halfDir ) );\n\tfloat D = D_Charlie( sheenRoughness, dotNH );\n\tfloat V = V_Neubelt( dotNV, dotNL );\n\treturn sheenColor * ( D * V );\n}\n#endif\nfloat IBLSheenBRDF( const in vec3 normal, const in vec3 viewDir, const in float roughness ) {\n\tfloat dotNV = saturate( dot( normal, viewDir ) );\n\tfloat r2 = roughness * roughness;\n\tfloat a = roughness < 0.25 ? -339.2 * r2 + 161.4 * roughness - 25.9 : -8.48 * r2 + 14.3 * roughness - 9.95;\n\tfloat b = roughness < 0.25 ? 44.0 * r2 - 23.7 * roughness + 3.26 : 1.97 * r2 - 3.27 * roughness + 0.72;\n\tfloat DG = exp( a * dotNV + b ) + ( roughness < 0.25 ? 0.0 : 0.1 * ( roughness - 0.25 ) );\n\treturn saturate( DG * RECIPROCAL_PI );\n}\nvec2 DFGApprox( const in vec3 normal, const in vec3 viewDir, const in float roughness ) {\n\tfloat dotNV = saturate( dot( normal, viewDir ) );\n\tconst vec4 c0 = vec4( - 1, - 0.0275, - 0.572, 0.022 );\n\tconst vec4 c1 = vec4( 1, 0.0425, 1.04, - 0.04 );\n\tvec4 r = roughness * c0 + c1;\n\tfloat a004 = min( r.x * r.x, exp2( - 9.28 * dotNV ) ) * r.x + r.y;\n\tvec2 fab = vec2( - 1.04, 1.04 ) * a004 + r.zw;\n\treturn fab;\n}\nvec3 EnvironmentBRDF( const in vec3 normal, const in vec3 viewDir, const in vec3 specularColor, const in float specularF90, const in float roughness ) {\n\tvec2 fab = DFGApprox( normal, viewDir, roughness );\n\treturn specularColor * fab.x + specularF90 * fab.y;\n}\n#ifdef USE_IRIDESCENCE\nvoid computeMultiscatteringIridescence( const in vec3 normal, const in vec3 viewDir, const in vec3 specularColor, const in float specularF90, const in float iridescence, const in vec3 iridescenceF0, const in float roughness, inout vec3 singleScatter, inout vec3 multiScatter ) {\n#else\nvoid computeMultiscattering( const in vec3 normal, const in vec3 viewDir, const in vec3 specularColor, const in float specularF90, const in float roughness, inout vec3 singleScatter, inout vec3 multiScatter ) {\n#endif\n\tvec2 fab = DFGApprox( normal, viewDir, roughness );\n\t#ifdef USE_IRIDESCENCE\n\t\tvec3 Fr = mix( specularColor, iridescenceF0, iridescence );\n\t#else\n\t\tvec3 Fr = specularColor;\n\t#endif\n\tvec3 FssEss = Fr * fab.x + specularF90 * fab.y;\n\tfloat Ess = fab.x + fab.y;\n\tfloat Ems = 1.0 - Ess;\n\tvec3 Favg = Fr + ( 1.0 - Fr ) * 0.047619;\tvec3 Fms = FssEss * Favg / ( 1.0 - Ems * Favg );\n\tsingleScatter += FssEss;\n\tmultiScatter += Fms * Ems;\n}\n#if NUM_RECT_AREA_LIGHTS > 0\n\tvoid RE_Direct_RectArea_Physical( const in RectAreaLight rectAreaLight, const in GeometricContext geometry, const in PhysicalMaterial material, inout ReflectedLight reflectedLight ) {\n\t\tvec3 normal = geometry.normal;\n\t\tvec3 viewDir = geometry.viewDir;\n\t\tvec3 position = geometry.position;\n\t\tvec3 lightPos = rectAreaLight.position;\n\t\tvec3 halfWidth = rectAreaLight.halfWidth;\n\t\tvec3 halfHeight = rectAreaLight.halfHeight;\n\t\tvec3 lightColor = rectAreaLight.color;\n\t\tfloat roughness = material.roughness;\n\t\tvec3 rectCoords[ 4 ];\n\t\trectCoords[ 0 ] = lightPos + halfWidth - halfHeight;\t\trectCoords[ 1 ] = lightPos - halfWidth - halfHeight;\n\t\trectCoords[ 2 ] = lightPos - halfWidth + halfHeight;\n\t\trectCoords[ 3 ] = lightPos + halfWidth + halfHeight;\n\t\tvec2 uv = LTC_Uv( normal, viewDir, roughness );\n\t\tvec4 t1 = texture2D( ltc_1, uv );\n\t\tvec4 t2 = texture2D( ltc_2, uv );\n\t\tmat3 mInv = mat3(\n\t\t\tvec3( t1.x, 0, t1.y ),\n\t\t\tvec3( 0, 1, 0 ),\n\t\t\tvec3( t1.z, 0, t1.w )\n\t\t);\n\t\tvec3 fresnel = ( material.specularColor * t2.x + ( vec3( 1.0 ) - material.specularColor ) * t2.y );\n\t\treflectedLight.directSpecular += lightColor * fresnel * LTC_Evaluate( normal, viewDir, position, mInv, rectCoords );\n\t\treflectedLight.directDiffuse += lightColor * material.diffuseColor * LTC_Evaluate( normal, viewDir, position, mat3( 1.0 ), rectCoords );\n\t}\n#endif\nvoid RE_Direct_Physical( const in IncidentLight directLight, const in GeometricContext geometry, const in PhysicalMaterial material, inout ReflectedLight reflectedLight ) {\n\tfloat dotNL = saturate( dot( geometry.normal, directLight.direction ) );\n\tvec3 irradiance = dotNL * directLight.color;\n\t#ifdef USE_CLEARCOAT\n\t\tfloat dotNLcc = saturate( dot( geometry.clearcoatNormal, directLight.direction ) );\n\t\tvec3 ccIrradiance = dotNLcc * directLight.color;\n\t\tclearcoatSpecular += ccIrradiance * BRDF_GGX_Clearcoat( directLight.direction, geometry.viewDir, geometry.clearcoatNormal, material );\n\t#endif\n\t#ifdef USE_SHEEN\n\t\tsheenSpecular += irradiance * BRDF_Sheen( directLight.direction, geometry.viewDir, geometry.normal, material.sheenColor, material.sheenRoughness );\n\t#endif\n\treflectedLight.directSpecular += irradiance * BRDF_GGX( directLight.direction, geometry.viewDir, geometry.normal, material );\n\treflectedLight.directDiffuse += irradiance * BRDF_Lambert( material.diffuseColor );\n}\nvoid RE_IndirectDiffuse_Physical( const in vec3 irradiance, const in GeometricContext geometry, const in PhysicalMaterial material, inout ReflectedLight reflectedLight ) {\n\treflectedLight.indirectDiffuse += irradiance * BRDF_Lambert( material.diffuseColor );\n}\nvoid RE_IndirectSpecular_Physical( const in vec3 radiance, const in vec3 irradiance, const in vec3 clearcoatRadiance, const in GeometricContext geometry, const in PhysicalMaterial material, inout ReflectedLight reflectedLight) {\n\t#ifdef USE_CLEARCOAT\n\t\tclearcoatSpecular += clearcoatRadiance * EnvironmentBRDF( geometry.clearcoatNormal, geometry.viewDir, material.clearcoatF0, material.clearcoatF90, material.clearcoatRoughness );\n\t#endif\n\t#ifdef USE_SHEEN\n\t\tsheenSpecular += irradiance * material.sheenColor * IBLSheenBRDF( geometry.normal, geometry.viewDir, material.sheenRoughness );\n\t#endif\n\tvec3 singleScattering = vec3( 0.0 );\n\tvec3 multiScattering = vec3( 0.0 );\n\tvec3 cosineWeightedIrradiance = irradiance * RECIPROCAL_PI;\n\t#ifdef USE_IRIDESCENCE\n\t\tcomputeMultiscatteringIridescence( geometry.normal, geometry.viewDir, material.specularColor, material.specularF90, material.iridescence, material.iridescenceFresnel, material.roughness, singleScattering, multiScattering );\n\t#else\n\t\tcomputeMultiscattering( geometry.normal, geometry.viewDir, material.specularColor, material.specularF90, material.roughness, singleScattering, multiScattering );\n\t#endif\n\tvec3 totalScattering = singleScattering + multiScattering;\n\tvec3 diffuse = material.diffuseColor * ( 1.0 - max( max( totalScattering.r, totalScattering.g ), totalScattering.b ) );\n\treflectedLight.indirectSpecular += radiance * singleScattering;\n\treflectedLight.indirectSpecular += multiScattering * cosineWeightedIrradiance;\n\treflectedLight.indirectDiffuse += diffuse * cosineWeightedIrradiance;\n}\n#define RE_Direct\t\t\t\tRE_Direct_Physical\n#define RE_Direct_RectArea\t\tRE_Direct_RectArea_Physical\n#define RE_IndirectDiffuse\t\tRE_IndirectDiffuse_Physical\n#define RE_IndirectSpecular\t\tRE_IndirectSpecular_Physical\nfloat computeSpecularOcclusion( const in float dotNV, const in float ambientOcclusion, const in float roughness ) {\n\treturn saturate( pow( dotNV + ambientOcclusion, exp2( - 16.0 * roughness - 1.0 ) ) - 1.0 + ambientOcclusion );\n}",lights_fragment_begin:"\nGeometricContext geometry;\ngeometry.position = - vViewPosition;\ngeometry.normal = normal;\ngeometry.viewDir = ( isOrthographic ) ? vec3( 0, 0, 1 ) : normalize( vViewPosition );\n#ifdef USE_CLEARCOAT\n\tgeometry.clearcoatNormal = clearcoatNormal;\n#endif\n#ifdef USE_IRIDESCENCE\n\tfloat dotNVi = saturate( dot( normal, geometry.viewDir ) );\n\tif ( material.iridescenceThickness == 0.0 ) {\n\t\tmaterial.iridescence = 0.0;\n\t} else {\n\t\tmaterial.iridescence = saturate( material.iridescence );\n\t}\n\tif ( material.iridescence > 0.0 ) {\n\t\tmaterial.iridescenceFresnel = evalIridescence( 1.0, material.iridescenceIOR, dotNVi, material.iridescenceThickness, material.specularColor );\n\t\tmaterial.iridescenceF0 = Schlick_to_F0( material.iridescenceFresnel, 1.0, dotNVi );\n\t}\n#endif\nIncidentLight directLight;\n#if ( NUM_POINT_LIGHTS > 0 ) && defined( RE_Direct )\n\tPointLight pointLight;\n\t#if defined( USE_SHADOWMAP ) && NUM_POINT_LIGHT_SHADOWS > 0\n\tPointLightShadow pointLightShadow;\n\t#endif\n\t#pragma unroll_loop_start\n\tfor ( int i = 0; i < NUM_POINT_LIGHTS; i ++ ) {\n\t\tpointLight = pointLights[ i ];\n\t\tgetPointLightInfo( pointLight, geometry, directLight );\n\t\t#if defined( USE_SHADOWMAP ) && ( UNROLLED_LOOP_INDEX < NUM_POINT_LIGHT_SHADOWS )\n\t\tpointLightShadow = pointLightShadows[ i ];\n\t\tdirectLight.color *= ( directLight.visible && receiveShadow ) ? getPointShadow( pointShadowMap[ i ], pointLightShadow.shadowMapSize, pointLightShadow.shadowBias, pointLightShadow.shadowRadius, vPointShadowCoord[ i ], pointLightShadow.shadowCameraNear, pointLightShadow.shadowCameraFar ) : 1.0;\n\t\t#endif\n\t\tRE_Direct( directLight, geometry, material, reflectedLight );\n\t}\n\t#pragma unroll_loop_end\n#endif\n#if ( NUM_SPOT_LIGHTS > 0 ) && defined( RE_Direct )\n\tSpotLight spotLight;\n\tvec4 spotColor;\n\tvec3 spotLightCoord;\n\tbool inSpotLightMap;\n\t#if defined( USE_SHADOWMAP ) && NUM_SPOT_LIGHT_SHADOWS > 0\n\tSpotLightShadow spotLightShadow;\n\t#endif\n\t#pragma unroll_loop_start\n\tfor ( int i = 0; i < NUM_SPOT_LIGHTS; i ++ ) {\n\t\tspotLight = spotLights[ i ];\n\t\tgetSpotLightInfo( spotLight, geometry, directLight );\n\t\t#if ( UNROLLED_LOOP_INDEX < NUM_SPOT_LIGHT_SHADOWS_WITH_MAPS )\n\t\t#define SPOT_LIGHT_MAP_INDEX UNROLLED_LOOP_INDEX\n\t\t#elif ( UNROLLED_LOOP_INDEX < NUM_SPOT_LIGHT_SHADOWS )\n\t\t#define SPOT_LIGHT_MAP_INDEX NUM_SPOT_LIGHT_MAPS\n\t\t#else\n\t\t#define SPOT_LIGHT_MAP_INDEX ( UNROLLED_LOOP_INDEX - NUM_SPOT_LIGHT_SHADOWS + NUM_SPOT_LIGHT_SHADOWS_WITH_MAPS )\n\t\t#endif\n\t\t#if ( SPOT_LIGHT_MAP_INDEX < NUM_SPOT_LIGHT_MAPS )\n\t\t\tspotLightCoord = vSpotLightCoord[ i ].xyz / vSpotLightCoord[ i ].w;\n\t\t\tinSpotLightMap = all( lessThan( abs( spotLightCoord * 2. - 1. ), vec3( 1.0 ) ) );\n\t\t\tspotColor = texture2D( spotLightMap[ SPOT_LIGHT_MAP_INDEX ], spotLightCoord.xy );\n\t\t\tdirectLight.color = inSpotLightMap ? directLight.color * spotColor.rgb : directLight.color;\n\t\t#endif\n\t\t#undef SPOT_LIGHT_MAP_INDEX\n\t\t#if defined( USE_SHADOWMAP ) && ( UNROLLED_LOOP_INDEX < NUM_SPOT_LIGHT_SHADOWS )\n\t\tspotLightShadow = spotLightShadows[ i ];\n\t\tdirectLight.color *= ( directLight.visible && receiveShadow ) ? getShadow( spotShadowMap[ i ], spotLightShadow.shadowMapSize, spotLightShadow.shadowBias, spotLightShadow.shadowRadius, vSpotLightCoord[ i ] ) : 1.0;\n\t\t#endif\n\t\tRE_Direct( directLight, geometry, material, reflectedLight );\n\t}\n\t#pragma unroll_loop_end\n#endif\n#if ( NUM_DIR_LIGHTS > 0 ) && defined( RE_Direct )\n\tDirectionalLight directionalLight;\n\t#if defined( USE_SHADOWMAP ) && NUM_DIR_LIGHT_SHADOWS > 0\n\tDirectionalLightShadow directionalLightShadow;\n\t#endif\n\t#pragma unroll_loop_start\n\tfor ( int i = 0; i < NUM_DIR_LIGHTS; i ++ ) {\n\t\tdirectionalLight = directionalLights[ i ];\n\t\tgetDirectionalLightInfo( directionalLight, geometry, directLight );\n\t\t#if defined( USE_SHADOWMAP ) && ( UNROLLED_LOOP_INDEX < NUM_DIR_LIGHT_SHADOWS )\n\t\tdirectionalLightShadow = directionalLightShadows[ i ];\n\t\tdirectLight.color *= ( directLight.visible && receiveShadow ) ? getShadow( directionalShadowMap[ i ], directionalLightShadow.shadowMapSize, directionalLightShadow.shadowBias, directionalLightShadow.shadowRadius, vDirectionalShadowCoord[ i ] ) : 1.0;\n\t\t#endif\n\t\tRE_Direct( directLight, geometry, material, reflectedLight );\n\t}\n\t#pragma unroll_loop_end\n#endif\n#if ( NUM_RECT_AREA_LIGHTS > 0 ) && defined( RE_Direct_RectArea )\n\tRectAreaLight rectAreaLight;\n\t#pragma unroll_loop_start\n\tfor ( int i = 0; i < NUM_RECT_AREA_LIGHTS; i ++ ) {\n\t\trectAreaLight = rectAreaLights[ i ];\n\t\tRE_Direct_RectArea( rectAreaLight, geometry, material, reflectedLight );\n\t}\n\t#pragma unroll_loop_end\n#endif\n#if defined( RE_IndirectDiffuse )\n\tvec3 iblIrradiance = vec3( 0.0 );\n\tvec3 irradiance = getAmbientLightIrradiance( ambientLightColor );\n\tirradiance += getLightProbeIrradiance( lightProbe, geometry.normal );\n\t#if ( NUM_HEMI_LIGHTS > 0 )\n\t\t#pragma unroll_loop_start\n\t\tfor ( int i = 0; i < NUM_HEMI_LIGHTS; i ++ ) {\n\t\t\tirradiance += getHemisphereLightIrradiance( hemisphereLights[ i ], geometry.normal );\n\t\t}\n\t\t#pragma unroll_loop_end\n\t#endif\n#endif\n#if defined( RE_IndirectSpecular )\n\tvec3 radiance = vec3( 0.0 );\n\tvec3 clearcoatRadiance = vec3( 0.0 );\n#endif",lights_fragment_maps:"#if defined( RE_IndirectDiffuse )\n\t#ifdef USE_LIGHTMAP\n\t\tvec4 lightMapTexel = texture2D( lightMap, vLightMapUv );\n\t\tvec3 lightMapIrradiance = lightMapTexel.rgb * lightMapIntensity;\n\t\tirradiance += lightMapIrradiance;\n\t#endif\n\t#if defined( USE_ENVMAP ) && defined( STANDARD ) && defined( ENVMAP_TYPE_CUBE_UV )\n\t\tiblIrradiance += getIBLIrradiance( geometry.normal );\n\t#endif\n#endif\n#if defined( USE_ENVMAP ) && defined( RE_IndirectSpecular )\n\t#ifdef USE_ANISOTROPY\n\t\tradiance += getIBLAnisotropyRadiance( geometry.viewDir, geometry.normal, material.roughness, material.anisotropyB, material.anisotropy );\n\t#else\n\t\tradiance += getIBLRadiance( geometry.viewDir, geometry.normal, material.roughness );\n\t#endif\n\t#ifdef USE_CLEARCOAT\n\t\tclearcoatRadiance += getIBLRadiance( geometry.viewDir, geometry.clearcoatNormal, material.clearcoatRoughness );\n\t#endif\n#endif",lights_fragment_end:"#if defined( RE_IndirectDiffuse )\n\tRE_IndirectDiffuse( irradiance, geometry, material, reflectedLight );\n#endif\n#if defined( RE_IndirectSpecular )\n\tRE_IndirectSpecular( radiance, iblIrradiance, clearcoatRadiance, geometry, material, reflectedLight );\n#endif",logdepthbuf_fragment:"#if defined( USE_LOGDEPTHBUF ) && defined( USE_LOGDEPTHBUF_EXT )\n\tgl_FragDepthEXT = vIsPerspective == 0.0 ? gl_FragCoord.z : log2( vFragDepth ) * logDepthBufFC * 0.5;\n#endif",logdepthbuf_pars_fragment:"#if defined( USE_LOGDEPTHBUF ) && defined( USE_LOGDEPTHBUF_EXT )\n\tuniform float logDepthBufFC;\n\tvarying float vFragDepth;\n\tvarying float vIsPerspective;\n#endif",logdepthbuf_pars_vertex:"#ifdef USE_LOGDEPTHBUF\n\t#ifdef USE_LOGDEPTHBUF_EXT\n\t\tvarying float vFragDepth;\n\t\tvarying float vIsPerspective;\n\t#else\n\t\tuniform float logDepthBufFC;\n\t#endif\n#endif",logdepthbuf_vertex:"#ifdef USE_LOGDEPTHBUF\n\t#ifdef USE_LOGDEPTHBUF_EXT\n\t\tvFragDepth = 1.0 + gl_Position.w;\n\t\tvIsPerspective = float( isPerspectiveMatrix( projectionMatrix ) );\n\t#else\n\t\tif ( isPerspectiveMatrix( projectionMatrix ) ) {\n\t\t\tgl_Position.z = log2( max( EPSILON, gl_Position.w + 1.0 ) ) * logDepthBufFC - 1.0;\n\t\t\tgl_Position.z *= gl_Position.w;\n\t\t}\n\t#endif\n#endif",map_fragment:"#ifdef USE_MAP\n\tvec4 sampledDiffuseColor = texture2D( map, vMapUv );\n\t#ifdef DECODE_VIDEO_TEXTURE\n\t\tsampledDiffuseColor = vec4( mix( pow( sampledDiffuseColor.rgb * 0.9478672986 + vec3( 0.0521327014 ), vec3( 2.4 ) ), sampledDiffuseColor.rgb * 0.0773993808, vec3( lessThanEqual( sampledDiffuseColor.rgb, vec3( 0.04045 ) ) ) ), sampledDiffuseColor.w );\n\t\n\t#endif\n\tdiffuseColor *= sampledDiffuseColor;\n#endif",map_pars_fragment:"#ifdef USE_MAP\n\tuniform sampler2D map;\n#endif",map_particle_fragment:"#if defined( USE_MAP ) || defined( USE_ALPHAMAP )\n\t#if defined( USE_POINTS_UV )\n\t\tvec2 uv = vUv;\n\t#else\n\t\tvec2 uv = ( uvTransform * vec3( gl_PointCoord.x, 1.0 - gl_PointCoord.y, 1 ) ).xy;\n\t#endif\n#endif\n#ifdef USE_MAP\n\tdiffuseColor *= texture2D( map, uv );\n#endif\n#ifdef USE_ALPHAMAP\n\tdiffuseColor.a *= texture2D( alphaMap, uv ).g;\n#endif",map_particle_pars_fragment:"#if defined( USE_POINTS_UV )\n\tvarying vec2 vUv;\n#else\n\t#if defined( USE_MAP ) || defined( USE_ALPHAMAP )\n\t\tuniform mat3 uvTransform;\n\t#endif\n#endif\n#ifdef USE_MAP\n\tuniform sampler2D map;\n#endif\n#ifdef USE_ALPHAMAP\n\tuniform sampler2D alphaMap;\n#endif",metalnessmap_fragment:"float metalnessFactor = metalness;\n#ifdef USE_METALNESSMAP\n\tvec4 texelMetalness = texture2D( metalnessMap, vMetalnessMapUv );\n\tmetalnessFactor *= texelMetalness.b;\n#endif",metalnessmap_pars_fragment:"#ifdef USE_METALNESSMAP\n\tuniform sampler2D metalnessMap;\n#endif",morphcolor_vertex:"#if defined( USE_MORPHCOLORS ) && defined( MORPHTARGETS_TEXTURE )\n\tvColor *= morphTargetBaseInfluence;\n\tfor ( int i = 0; i < MORPHTARGETS_COUNT; i ++ ) {\n\t\t#if defined( USE_COLOR_ALPHA )\n\t\t\tif ( morphTargetInfluences[ i ] != 0.0 ) vColor += getMorph( gl_VertexID, i, 2 ) * morphTargetInfluences[ i ];\n\t\t#elif defined( USE_COLOR )\n\t\t\tif ( morphTargetInfluences[ i ] != 0.0 ) vColor += getMorph( gl_VertexID, i, 2 ).rgb * morphTargetInfluences[ i ];\n\t\t#endif\n\t}\n#endif",morphnormal_vertex:"#ifdef USE_MORPHNORMALS\n\tobjectNormal *= morphTargetBaseInfluence;\n\t#ifdef MORPHTARGETS_TEXTURE\n\t\tfor ( int i = 0; i < MORPHTARGETS_COUNT; i ++ ) {\n\t\t\tif ( morphTargetInfluences[ i ] != 0.0 ) objectNormal += getMorph( gl_VertexID, i, 1 ).xyz * morphTargetInfluences[ i ];\n\t\t}\n\t#else\n\t\tobjectNormal += morphNormal0 * morphTargetInfluences[ 0 ];\n\t\tobjectNormal += morphNormal1 * morphTargetInfluences[ 1 ];\n\t\tobjectNormal += morphNormal2 * morphTargetInfluences[ 2 ];\n\t\tobjectNormal += morphNormal3 * morphTargetInfluences[ 3 ];\n\t#endif\n#endif",morphtarget_pars_vertex:"#ifdef USE_MORPHTARGETS\n\tuniform float morphTargetBaseInfluence;\n\t#ifdef MORPHTARGETS_TEXTURE\n\t\tuniform float morphTargetInfluences[ MORPHTARGETS_COUNT ];\n\t\tuniform sampler2DArray morphTargetsTexture;\n\t\tuniform ivec2 morphTargetsTextureSize;\n\t\tvec4 getMorph( const in int vertexIndex, const in int morphTargetIndex, const in int offset ) {\n\t\t\tint texelIndex = vertexIndex * MORPHTARGETS_TEXTURE_STRIDE + offset;\n\t\t\tint y = texelIndex / morphTargetsTextureSize.x;\n\t\t\tint x = texelIndex - y * morphTargetsTextureSize.x;\n\t\t\tivec3 morphUV = ivec3( x, y, morphTargetIndex );\n\t\t\treturn texelFetch( morphTargetsTexture, morphUV, 0 );\n\t\t}\n\t#else\n\t\t#ifndef USE_MORPHNORMALS\n\t\t\tuniform float morphTargetInfluences[ 8 ];\n\t\t#else\n\t\t\tuniform float morphTargetInfluences[ 4 ];\n\t\t#endif\n\t#endif\n#endif",morphtarget_vertex:"#ifdef USE_MORPHTARGETS\n\ttransformed *= morphTargetBaseInfluence;\n\t#ifdef MORPHTARGETS_TEXTURE\n\t\tfor ( int i = 0; i < MORPHTARGETS_COUNT; i ++ ) {\n\t\t\tif ( morphTargetInfluences[ i ] != 0.0 ) transformed += getMorph( gl_VertexID, i, 0 ).xyz * morphTargetInfluences[ i ];\n\t\t}\n\t#else\n\t\ttransformed += morphTarget0 * morphTargetInfluences[ 0 ];\n\t\ttransformed += morphTarget1 * morphTargetInfluences[ 1 ];\n\t\ttransformed += morphTarget2 * morphTargetInfluences[ 2 ];\n\t\ttransformed += morphTarget3 * morphTargetInfluences[ 3 ];\n\t\t#ifndef USE_MORPHNORMALS\n\t\t\ttransformed += morphTarget4 * morphTargetInfluences[ 4 ];\n\t\t\ttransformed += morphTarget5 * morphTargetInfluences[ 5 ];\n\t\t\ttransformed += morphTarget6 * morphTargetInfluences[ 6 ];\n\t\t\ttransformed += morphTarget7 * morphTargetInfluences[ 7 ];\n\t\t#endif\n\t#endif\n#endif",normal_fragment_begin:"float faceDirection = gl_FrontFacing ? 1.0 : - 1.0;\n#ifdef FLAT_SHADED\n\tvec3 fdx = dFdx( vViewPosition );\n\tvec3 fdy = dFdy( vViewPosition );\n\tvec3 normal = normalize( cross( fdx, fdy ) );\n#else\n\tvec3 normal = normalize( vNormal );\n\t#ifdef DOUBLE_SIDED\n\t\tnormal *= faceDirection;\n\t#endif\n#endif\n#if defined( USE_NORMALMAP_TANGENTSPACE ) || defined( USE_CLEARCOAT_NORMALMAP ) || defined( USE_ANISOTROPY )\n\t#ifdef USE_TANGENT\n\t\tmat3 tbn = mat3( normalize( vTangent ), normalize( vBitangent ), normal );\n\t#else\n\t\tmat3 tbn = getTangentFrame( - vViewPosition, normal,\n\t\t#if defined( USE_NORMALMAP )\n\t\t\tvNormalMapUv\n\t\t#elif defined( USE_CLEARCOAT_NORMALMAP )\n\t\t\tvClearcoatNormalMapUv\n\t\t#else\n\t\t\tvUv\n\t\t#endif\n\t\t);\n\t#endif\n\t#if defined( DOUBLE_SIDED ) && ! defined( FLAT_SHADED )\n\t\ttbn[0] *= faceDirection;\n\t\ttbn[1] *= faceDirection;\n\t#endif\n#endif\n#ifdef USE_CLEARCOAT_NORMALMAP\n\t#ifdef USE_TANGENT\n\t\tmat3 tbn2 = mat3( normalize( vTangent ), normalize( vBitangent ), normal );\n\t#else\n\t\tmat3 tbn2 = getTangentFrame( - vViewPosition, normal, vClearcoatNormalMapUv );\n\t#endif\n\t#if defined( DOUBLE_SIDED ) && ! defined( FLAT_SHADED )\n\t\ttbn2[0] *= faceDirection;\n\t\ttbn2[1] *= faceDirection;\n\t#endif\n#endif\nvec3 geometryNormal = normal;",normal_fragment_maps:"#ifdef USE_NORMALMAP_OBJECTSPACE\n\tnormal = texture2D( normalMap, vNormalMapUv ).xyz * 2.0 - 1.0;\n\t#ifdef FLIP_SIDED\n\t\tnormal = - normal;\n\t#endif\n\t#ifdef DOUBLE_SIDED\n\t\tnormal = normal * faceDirection;\n\t#endif\n\tnormal = normalize( normalMatrix * normal );\n#elif defined( USE_NORMALMAP_TANGENTSPACE )\n\tvec3 mapN = texture2D( normalMap, vNormalMapUv ).xyz * 2.0 - 1.0;\n\tmapN.xy *= normalScale;\n\tnormal = normalize( tbn * mapN );\n#elif defined( USE_BUMPMAP )\n\tnormal = perturbNormalArb( - vViewPosition, normal, dHdxy_fwd(), faceDirection );\n#endif",normal_pars_fragment:"#ifndef FLAT_SHADED\n\tvarying vec3 vNormal;\n\t#ifdef USE_TANGENT\n\t\tvarying vec3 vTangent;\n\t\tvarying vec3 vBitangent;\n\t#endif\n#endif",normal_pars_vertex:"#ifndef FLAT_SHADED\n\tvarying vec3 vNormal;\n\t#ifdef USE_TANGENT\n\t\tvarying vec3 vTangent;\n\t\tvarying vec3 vBitangent;\n\t#endif\n#endif",normal_vertex:"#ifndef FLAT_SHADED\n\tvNormal = normalize( transformedNormal );\n\t#ifdef USE_TANGENT\n\t\tvTangent = normalize( transformedTangent );\n\t\tvBitangent = normalize( cross( vNormal, vTangent ) * tangent.w );\n\t#endif\n#endif",normalmap_pars_fragment:"#ifdef USE_NORMALMAP\n\tuniform sampler2D normalMap;\n\tuniform vec2 normalScale;\n#endif\n#ifdef USE_NORMALMAP_OBJECTSPACE\n\tuniform mat3 normalMatrix;\n#endif\n#if ! defined ( USE_TANGENT ) && ( defined ( USE_NORMALMAP_TANGENTSPACE ) || defined ( USE_CLEARCOAT_NORMALMAP ) || defined( USE_ANISOTROPY ) )\n\tmat3 getTangentFrame( vec3 eye_pos, vec3 surf_norm, vec2 uv ) {\n\t\tvec3 q0 = dFdx( eye_pos.xyz );\n\t\tvec3 q1 = dFdy( eye_pos.xyz );\n\t\tvec2 st0 = dFdx( uv.st );\n\t\tvec2 st1 = dFdy( uv.st );\n\t\tvec3 N = surf_norm;\n\t\tvec3 q1perp = cross( q1, N );\n\t\tvec3 q0perp = cross( N, q0 );\n\t\tvec3 T = q1perp * st0.x + q0perp * st1.x;\n\t\tvec3 B = q1perp * st0.y + q0perp * st1.y;\n\t\tfloat det = max( dot( T, T ), dot( B, B ) );\n\t\tfloat scale = ( det == 0.0 ) ? 0.0 : inversesqrt( det );\n\t\treturn mat3( T * scale, B * scale, N );\n\t}\n#endif",clearcoat_normal_fragment_begin:"#ifdef USE_CLEARCOAT\n\tvec3 clearcoatNormal = geometryNormal;\n#endif",clearcoat_normal_fragment_maps:"#ifdef USE_CLEARCOAT_NORMALMAP\n\tvec3 clearcoatMapN = texture2D( clearcoatNormalMap, vClearcoatNormalMapUv ).xyz * 2.0 - 1.0;\n\tclearcoatMapN.xy *= clearcoatNormalScale;\n\tclearcoatNormal = normalize( tbn2 * clearcoatMapN );\n#endif",clearcoat_pars_fragment:"#ifdef USE_CLEARCOATMAP\n\tuniform sampler2D clearcoatMap;\n#endif\n#ifdef USE_CLEARCOAT_NORMALMAP\n\tuniform sampler2D clearcoatNormalMap;\n\tuniform vec2 clearcoatNormalScale;\n#endif\n#ifdef USE_CLEARCOAT_ROUGHNESSMAP\n\tuniform sampler2D clearcoatRoughnessMap;\n#endif",iridescence_pars_fragment:"#ifdef USE_IRIDESCENCEMAP\n\tuniform sampler2D iridescenceMap;\n#endif\n#ifdef USE_IRIDESCENCE_THICKNESSMAP\n\tuniform sampler2D iridescenceThicknessMap;\n#endif",opaque_fragment:"#ifdef OPAQUE\ndiffuseColor.a = 1.0;\n#endif\n#ifdef USE_TRANSMISSION\ndiffuseColor.a *= material.transmissionAlpha;\n#endif\ngl_FragColor = vec4( outgoingLight, diffuseColor.a );",packing:"vec3 packNormalToRGB( const in vec3 normal ) {\n\treturn normalize( normal ) * 0.5 + 0.5;\n}\nvec3 unpackRGBToNormal( const in vec3 rgb ) {\n\treturn 2.0 * rgb.xyz - 1.0;\n}\nconst float PackUpscale = 256. / 255.;const float UnpackDownscale = 255. / 256.;\nconst vec3 PackFactors = vec3( 256. * 256. * 256., 256. * 256., 256. );\nconst vec4 UnpackFactors = UnpackDownscale / vec4( PackFactors, 1. );\nconst float ShiftRight8 = 1. / 256.;\nvec4 packDepthToRGBA( const in float v ) {\n\tvec4 r = vec4( fract( v * PackFactors ), v );\n\tr.yzw -= r.xyz * ShiftRight8;\treturn r * PackUpscale;\n}\nfloat unpackRGBAToDepth( const in vec4 v ) {\n\treturn dot( v, UnpackFactors );\n}\nvec2 packDepthToRG( in highp float v ) {\n\treturn packDepthToRGBA( v ).yx;\n}\nfloat unpackRGToDepth( const in highp vec2 v ) {\n\treturn unpackRGBAToDepth( vec4( v.xy, 0.0, 0.0 ) );\n}\nvec4 pack2HalfToRGBA( vec2 v ) {\n\tvec4 r = vec4( v.x, fract( v.x * 255.0 ), v.y, fract( v.y * 255.0 ) );\n\treturn vec4( r.x - r.y / 255.0, r.y, r.z - r.w / 255.0, r.w );\n}\nvec2 unpackRGBATo2Half( vec4 v ) {\n\treturn vec2( v.x + ( v.y / 255.0 ), v.z + ( v.w / 255.0 ) );\n}\nfloat viewZToOrthographicDepth( const in float viewZ, const in float near, const in float far ) {\n\treturn ( viewZ + near ) / ( near - far );\n}\nfloat orthographicDepthToViewZ( const in float depth, const in float near, const in float far ) {\n\treturn depth * ( near - far ) - near;\n}\nfloat viewZToPerspectiveDepth( const in float viewZ, const in float near, const in float far ) {\n\treturn ( ( near + viewZ ) * far ) / ( ( far - near ) * viewZ );\n}\nfloat perspectiveDepthToViewZ( const in float depth, const in float near, const in float far ) {\n\treturn ( near * far ) / ( ( far - near ) * depth - far );\n}",premultiplied_alpha_fragment:"#ifdef PREMULTIPLIED_ALPHA\n\tgl_FragColor.rgb *= gl_FragColor.a;\n#endif",project_vertex:"vec4 mvPosition = vec4( transformed, 1.0 );\n#ifdef USE_INSTANCING\n\tmvPosition = instanceMatrix * mvPosition;\n#endif\nmvPosition = modelViewMatrix * mvPosition;\ngl_Position = projectionMatrix * mvPosition;",dithering_fragment:"#ifdef DITHERING\n\tgl_FragColor.rgb = dithering( gl_FragColor.rgb );\n#endif",dithering_pars_fragment:"#ifdef DITHERING\n\tvec3 dithering( vec3 color ) {\n\t\tfloat grid_position = rand( gl_FragCoord.xy );\n\t\tvec3 dither_shift_RGB = vec3( 0.25 / 255.0, -0.25 / 255.0, 0.25 / 255.0 );\n\t\tdither_shift_RGB = mix( 2.0 * dither_shift_RGB, -2.0 * dither_shift_RGB, grid_position );\n\t\treturn color + dither_shift_RGB;\n\t}\n#endif",roughnessmap_fragment:"float roughnessFactor = roughness;\n#ifdef USE_ROUGHNESSMAP\n\tvec4 texelRoughness = texture2D( roughnessMap, vRoughnessMapUv );\n\troughnessFactor *= texelRoughness.g;\n#endif",roughnessmap_pars_fragment:"#ifdef USE_ROUGHNESSMAP\n\tuniform sampler2D roughnessMap;\n#endif",shadowmap_pars_fragment:"#if NUM_SPOT_LIGHT_COORDS > 0\n\tvarying vec4 vSpotLightCoord[ NUM_SPOT_LIGHT_COORDS ];\n#endif\n#if NUM_SPOT_LIGHT_MAPS > 0\n\tuniform sampler2D spotLightMap[ NUM_SPOT_LIGHT_MAPS ];\n#endif\n#ifdef USE_SHADOWMAP\n\t#if NUM_DIR_LIGHT_SHADOWS > 0\n\t\tuniform sampler2D directionalShadowMap[ NUM_DIR_LIGHT_SHADOWS ];\n\t\tvarying vec4 vDirectionalShadowCoord[ NUM_DIR_LIGHT_SHADOWS ];\n\t\tstruct DirectionalLightShadow {\n\t\t\tfloat shadowBias;\n\t\t\tfloat shadowNormalBias;\n\t\t\tfloat shadowRadius;\n\t\t\tvec2 shadowMapSize;\n\t\t};\n\t\tuniform DirectionalLightShadow directionalLightShadows[ NUM_DIR_LIGHT_SHADOWS ];\n\t#endif\n\t#if NUM_SPOT_LIGHT_SHADOWS > 0\n\t\tuniform sampler2D spotShadowMap[ NUM_SPOT_LIGHT_SHADOWS ];\n\t\tstruct SpotLightShadow {\n\t\t\tfloat shadowBias;\n\t\t\tfloat shadowNormalBias;\n\t\t\tfloat shadowRadius;\n\t\t\tvec2 shadowMapSize;\n\t\t};\n\t\tuniform SpotLightShadow spotLightShadows[ NUM_SPOT_LIGHT_SHADOWS ];\n\t#endif\n\t#if NUM_POINT_LIGHT_SHADOWS > 0\n\t\tuniform sampler2D pointShadowMap[ NUM_POINT_LIGHT_SHADOWS ];\n\t\tvarying vec4 vPointShadowCoord[ NUM_POINT_LIGHT_SHADOWS ];\n\t\tstruct PointLightShadow {\n\t\t\tfloat shadowBias;\n\t\t\tfloat shadowNormalBias;\n\t\t\tfloat shadowRadius;\n\t\t\tvec2 shadowMapSize;\n\t\t\tfloat shadowCameraNear;\n\t\t\tfloat shadowCameraFar;\n\t\t};\n\t\tuniform PointLightShadow pointLightShadows[ NUM_POINT_LIGHT_SHADOWS ];\n\t#endif\n\tfloat texture2DCompare( sampler2D depths, vec2 uv, float compare ) {\n\t\treturn step( compare, unpackRGBAToDepth( texture2D( depths, uv ) ) );\n\t}\n\tvec2 texture2DDistribution( sampler2D shadow, vec2 uv ) {\n\t\treturn unpackRGBATo2Half( texture2D( shadow, uv ) );\n\t}\n\tfloat VSMShadow (sampler2D shadow, vec2 uv, float compare ){\n\t\tfloat occlusion = 1.0;\n\t\tvec2 distribution = texture2DDistribution( shadow, uv );\n\t\tfloat hard_shadow = step( compare , distribution.x );\n\t\tif (hard_shadow != 1.0 ) {\n\t\t\tfloat distance = compare - distribution.x ;\n\t\t\tfloat variance = max( 0.00000, distribution.y * distribution.y );\n\t\t\tfloat softness_probability = variance / (variance + distance * distance );\t\t\tsoftness_probability = clamp( ( softness_probability - 0.3 ) / ( 0.95 - 0.3 ), 0.0, 1.0 );\t\t\tocclusion = clamp( max( hard_shadow, softness_probability ), 0.0, 1.0 );\n\t\t}\n\t\treturn occlusion;\n\t}\n\tfloat getShadow( sampler2D shadowMap, vec2 shadowMapSize, float shadowBias, float shadowRadius, vec4 shadowCoord ) {\n\t\tfloat shadow = 1.0;\n\t\tshadowCoord.xyz /= shadowCoord.w;\n\t\tshadowCoord.z += shadowBias;\n\t\tbool inFrustum = shadowCoord.x >= 0.0 && shadowCoord.x <= 1.0 && shadowCoord.y >= 0.0 && shadowCoord.y <= 1.0;\n\t\tbool frustumTest = inFrustum && shadowCoord.z <= 1.0;\n\t\tif ( frustumTest ) {\n\t\t#if defined( SHADOWMAP_TYPE_PCF )\n\t\t\tvec2 texelSize = vec2( 1.0 ) / shadowMapSize;\n\t\t\tfloat dx0 = - texelSize.x * shadowRadius;\n\t\t\tfloat dy0 = - texelSize.y * shadowRadius;\n\t\t\tfloat dx1 = + texelSize.x * shadowRadius;\n\t\t\tfloat dy1 = + texelSize.y * shadowRadius;\n\t\t\tfloat dx2 = dx0 / 2.0;\n\t\t\tfloat dy2 = dy0 / 2.0;\n\t\t\tfloat dx3 = dx1 / 2.0;\n\t\t\tfloat dy3 = dy1 / 2.0;\n\t\t\tshadow = (\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( dx0, dy0 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( 0.0, dy0 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( dx1, dy0 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( dx2, dy2 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( 0.0, dy2 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( dx3, dy2 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( dx0, 0.0 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( dx2, 0.0 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy, shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( dx3, 0.0 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( dx1, 0.0 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( dx2, dy3 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( 0.0, dy3 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( dx3, dy3 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( dx0, dy1 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( 0.0, dy1 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( dx1, dy1 ), shadowCoord.z )\n\t\t\t) * ( 1.0 / 17.0 );\n\t\t#elif defined( SHADOWMAP_TYPE_PCF_SOFT )\n\t\t\tvec2 texelSize = vec2( 1.0 ) / shadowMapSize;\n\t\t\tfloat dx = texelSize.x;\n\t\t\tfloat dy = texelSize.y;\n\t\t\tvec2 uv = shadowCoord.xy;\n\t\t\tvec2 f = fract( uv * shadowMapSize + 0.5 );\n\t\t\tuv -= f * texelSize;\n\t\t\tshadow = (\n\t\t\t\ttexture2DCompare( shadowMap, uv, shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, uv + vec2( dx, 0.0 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, uv + vec2( 0.0, dy ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, uv + texelSize, shadowCoord.z ) +\n\t\t\t\tmix( texture2DCompare( shadowMap, uv + vec2( -dx, 0.0 ), shadowCoord.z ),\n\t\t\t\t\t texture2DCompare( shadowMap, uv + vec2( 2.0 * dx, 0.0 ), shadowCoord.z ),\n\t\t\t\t\t f.x ) +\n\t\t\t\tmix( texture2DCompare( shadowMap, uv + vec2( -dx, dy ), shadowCoord.z ),\n\t\t\t\t\t texture2DCompare( shadowMap, uv + vec2( 2.0 * dx, dy ), shadowCoord.z ),\n\t\t\t\t\t f.x ) +\n\t\t\t\tmix( texture2DCompare( shadowMap, uv + vec2( 0.0, -dy ), shadowCoord.z ),\n\t\t\t\t\t texture2DCompare( shadowMap, uv + vec2( 0.0, 2.0 * dy ), shadowCoord.z ),\n\t\t\t\t\t f.y ) +\n\t\t\t\tmix( texture2DCompare( shadowMap, uv + vec2( dx, -dy ), shadowCoord.z ),\n\t\t\t\t\t texture2DCompare( shadowMap, uv + vec2( dx, 2.0 * dy ), shadowCoord.z ),\n\t\t\t\t\t f.y ) +\n\t\t\t\tmix( mix( texture2DCompare( shadowMap, uv + vec2( -dx, -dy ), shadowCoord.z ),\n\t\t\t\t\t\t texture2DCompare( shadowMap, uv + vec2( 2.0 * dx, -dy ), shadowCoord.z ),\n\t\t\t\t\t\t f.x ),\n\t\t\t\t\t mix( texture2DCompare( shadowMap, uv + vec2( -dx, 2.0 * dy ), shadowCoord.z ),\n\t\t\t\t\t\t texture2DCompare( shadowMap, uv + vec2( 2.0 * dx, 2.0 * dy ), shadowCoord.z ),\n\t\t\t\t\t\t f.x ),\n\t\t\t\t\t f.y )\n\t\t\t) * ( 1.0 / 9.0 );\n\t\t#elif defined( SHADOWMAP_TYPE_VSM )\n\t\t\tshadow = VSMShadow( shadowMap, shadowCoord.xy, shadowCoord.z );\n\t\t#else\n\t\t\tshadow = texture2DCompare( shadowMap, shadowCoord.xy, shadowCoord.z );\n\t\t#endif\n\t\t}\n\t\treturn shadow;\n\t}\n\tvec2 cubeToUV( vec3 v, float texelSizeY ) {\n\t\tvec3 absV = abs( v );\n\t\tfloat scaleToCube = 1.0 / max( absV.x, max( absV.y, absV.z ) );\n\t\tabsV *= scaleToCube;\n\t\tv *= scaleToCube * ( 1.0 - 2.0 * texelSizeY );\n\t\tvec2 planar = v.xy;\n\t\tfloat almostATexel = 1.5 * texelSizeY;\n\t\tfloat almostOne = 1.0 - almostATexel;\n\t\tif ( absV.z >= almostOne ) {\n\t\t\tif ( v.z > 0.0 )\n\t\t\t\tplanar.x = 4.0 - v.x;\n\t\t} else if ( absV.x >= almostOne ) {\n\t\t\tfloat signX = sign( v.x );\n\t\t\tplanar.x = v.z * signX + 2.0 * signX;\n\t\t} else if ( absV.y >= almostOne ) {\n\t\t\tfloat signY = sign( v.y );\n\t\t\tplanar.x = v.x + 2.0 * signY + 2.0;\n\t\t\tplanar.y = v.z * signY - 2.0;\n\t\t}\n\t\treturn vec2( 0.125, 0.25 ) * planar + vec2( 0.375, 0.75 );\n\t}\n\tfloat getPointShadow( sampler2D shadowMap, vec2 shadowMapSize, float shadowBias, float shadowRadius, vec4 shadowCoord, float shadowCameraNear, float shadowCameraFar ) {\n\t\tvec2 texelSize = vec2( 1.0 ) / ( shadowMapSize * vec2( 4.0, 2.0 ) );\n\t\tvec3 lightToPosition = shadowCoord.xyz;\n\t\tfloat dp = ( length( lightToPosition ) - shadowCameraNear ) / ( shadowCameraFar - shadowCameraNear );\t\tdp += shadowBias;\n\t\tvec3 bd3D = normalize( lightToPosition );\n\t\t#if defined( SHADOWMAP_TYPE_PCF ) || defined( SHADOWMAP_TYPE_PCF_SOFT ) || defined( SHADOWMAP_TYPE_VSM )\n\t\t\tvec2 offset = vec2( - 1, 1 ) * shadowRadius * texelSize.y;\n\t\t\treturn (\n\t\t\t\ttexture2DCompare( shadowMap, cubeToUV( bd3D + offset.xyy, texelSize.y ), dp ) +\n\t\t\t\ttexture2DCompare( shadowMap, cubeToUV( bd3D + offset.yyy, texelSize.y ), dp ) +\n\t\t\t\ttexture2DCompare( shadowMap, cubeToUV( bd3D + offset.xyx, texelSize.y ), dp ) +\n\t\t\t\ttexture2DCompare( shadowMap, cubeToUV( bd3D + offset.yyx, texelSize.y ), dp ) +\n\t\t\t\ttexture2DCompare( shadowMap, cubeToUV( bd3D, texelSize.y ), dp ) +\n\t\t\t\ttexture2DCompare( shadowMap, cubeToUV( bd3D + offset.xxy, texelSize.y ), dp ) +\n\t\t\t\ttexture2DCompare( shadowMap, cubeToUV( bd3D + offset.yxy, texelSize.y ), dp ) +\n\t\t\t\ttexture2DCompare( shadowMap, cubeToUV( bd3D + offset.xxx, texelSize.y ), dp ) +\n\t\t\t\ttexture2DCompare( shadowMap, cubeToUV( bd3D + offset.yxx, texelSize.y ), dp )\n\t\t\t) * ( 1.0 / 9.0 );\n\t\t#else\n\t\t\treturn texture2DCompare( shadowMap, cubeToUV( bd3D, texelSize.y ), dp );\n\t\t#endif\n\t}\n#endif",shadowmap_pars_vertex:"#if NUM_SPOT_LIGHT_COORDS > 0\n\tuniform mat4 spotLightMatrix[ NUM_SPOT_LIGHT_COORDS ];\n\tvarying vec4 vSpotLightCoord[ NUM_SPOT_LIGHT_COORDS ];\n#endif\n#ifdef USE_SHADOWMAP\n\t#if NUM_DIR_LIGHT_SHADOWS > 0\n\t\tuniform mat4 directionalShadowMatrix[ NUM_DIR_LIGHT_SHADOWS ];\n\t\tvarying vec4 vDirectionalShadowCoord[ NUM_DIR_LIGHT_SHADOWS ];\n\t\tstruct DirectionalLightShadow {\n\t\t\tfloat shadowBias;\n\t\t\tfloat shadowNormalBias;\n\t\t\tfloat shadowRadius;\n\t\t\tvec2 shadowMapSize;\n\t\t};\n\t\tuniform DirectionalLightShadow directionalLightShadows[ NUM_DIR_LIGHT_SHADOWS ];\n\t#endif\n\t#if NUM_SPOT_LIGHT_SHADOWS > 0\n\t\tstruct SpotLightShadow {\n\t\t\tfloat shadowBias;\n\t\t\tfloat shadowNormalBias;\n\t\t\tfloat shadowRadius;\n\t\t\tvec2 shadowMapSize;\n\t\t};\n\t\tuniform SpotLightShadow spotLightShadows[ NUM_SPOT_LIGHT_SHADOWS ];\n\t#endif\n\t#if NUM_POINT_LIGHT_SHADOWS > 0\n\t\tuniform mat4 pointShadowMatrix[ NUM_POINT_LIGHT_SHADOWS ];\n\t\tvarying vec4 vPointShadowCoord[ NUM_POINT_LIGHT_SHADOWS ];\n\t\tstruct PointLightShadow {\n\t\t\tfloat shadowBias;\n\t\t\tfloat shadowNormalBias;\n\t\t\tfloat shadowRadius;\n\t\t\tvec2 shadowMapSize;\n\t\t\tfloat shadowCameraNear;\n\t\t\tfloat shadowCameraFar;\n\t\t};\n\t\tuniform PointLightShadow pointLightShadows[ NUM_POINT_LIGHT_SHADOWS ];\n\t#endif\n#endif",shadowmap_vertex:"#if ( defined( USE_SHADOWMAP ) && ( NUM_DIR_LIGHT_SHADOWS > 0 || NUM_POINT_LIGHT_SHADOWS > 0 ) ) || ( NUM_SPOT_LIGHT_COORDS > 0 )\n\tvec3 shadowWorldNormal = inverseTransformDirection( transformedNormal, viewMatrix );\n\tvec4 shadowWorldPosition;\n#endif\n#if defined( USE_SHADOWMAP )\n\t#if NUM_DIR_LIGHT_SHADOWS > 0\n\t\t#pragma unroll_loop_start\n\t\tfor ( int i = 0; i < NUM_DIR_LIGHT_SHADOWS; i ++ ) {\n\t\t\tshadowWorldPosition = worldPosition + vec4( shadowWorldNormal * directionalLightShadows[ i ].shadowNormalBias, 0 );\n\t\t\tvDirectionalShadowCoord[ i ] = directionalShadowMatrix[ i ] * shadowWorldPosition;\n\t\t}\n\t\t#pragma unroll_loop_end\n\t#endif\n\t#if NUM_POINT_LIGHT_SHADOWS > 0\n\t\t#pragma unroll_loop_start\n\t\tfor ( int i = 0; i < NUM_POINT_LIGHT_SHADOWS; i ++ ) {\n\t\t\tshadowWorldPosition = worldPosition + vec4( shadowWorldNormal * pointLightShadows[ i ].shadowNormalBias, 0 );\n\t\t\tvPointShadowCoord[ i ] = pointShadowMatrix[ i ] * shadowWorldPosition;\n\t\t}\n\t\t#pragma unroll_loop_end\n\t#endif\n#endif\n#if NUM_SPOT_LIGHT_COORDS > 0\n\t#pragma unroll_loop_start\n\tfor ( int i = 0; i < NUM_SPOT_LIGHT_COORDS; i ++ ) {\n\t\tshadowWorldPosition = worldPosition;\n\t\t#if ( defined( USE_SHADOWMAP ) && UNROLLED_LOOP_INDEX < NUM_SPOT_LIGHT_SHADOWS )\n\t\t\tshadowWorldPosition.xyz += shadowWorldNormal * spotLightShadows[ i ].shadowNormalBias;\n\t\t#endif\n\t\tvSpotLightCoord[ i ] = spotLightMatrix[ i ] * shadowWorldPosition;\n\t}\n\t#pragma unroll_loop_end\n#endif",shadowmask_pars_fragment:"float getShadowMask() {\n\tfloat shadow = 1.0;\n\t#ifdef USE_SHADOWMAP\n\t#if NUM_DIR_LIGHT_SHADOWS > 0\n\tDirectionalLightShadow directionalLight;\n\t#pragma unroll_loop_start\n\tfor ( int i = 0; i < NUM_DIR_LIGHT_SHADOWS; i ++ ) {\n\t\tdirectionalLight = directionalLightShadows[ i ];\n\t\tshadow *= receiveShadow ? getShadow( directionalShadowMap[ i ], directionalLight.shadowMapSize, directionalLight.shadowBias, directionalLight.shadowRadius, vDirectionalShadowCoord[ i ] ) : 1.0;\n\t}\n\t#pragma unroll_loop_end\n\t#endif\n\t#if NUM_SPOT_LIGHT_SHADOWS > 0\n\tSpotLightShadow spotLight;\n\t#pragma unroll_loop_start\n\tfor ( int i = 0; i < NUM_SPOT_LIGHT_SHADOWS; i ++ ) {\n\t\tspotLight = spotLightShadows[ i ];\n\t\tshadow *= receiveShadow ? getShadow( spotShadowMap[ i ], spotLight.shadowMapSize, spotLight.shadowBias, spotLight.shadowRadius, vSpotLightCoord[ i ] ) : 1.0;\n\t}\n\t#pragma unroll_loop_end\n\t#endif\n\t#if NUM_POINT_LIGHT_SHADOWS > 0\n\tPointLightShadow pointLight;\n\t#pragma unroll_loop_start\n\tfor ( int i = 0; i < NUM_POINT_LIGHT_SHADOWS; i ++ ) {\n\t\tpointLight = pointLightShadows[ i ];\n\t\tshadow *= receiveShadow ? getPointShadow( pointShadowMap[ i ], pointLight.shadowMapSize, pointLight.shadowBias, pointLight.shadowRadius, vPointShadowCoord[ i ], pointLight.shadowCameraNear, pointLight.shadowCameraFar ) : 1.0;\n\t}\n\t#pragma unroll_loop_end\n\t#endif\n\t#endif\n\treturn shadow;\n}",skinbase_vertex:"#ifdef USE_SKINNING\n\tmat4 boneMatX = getBoneMatrix( skinIndex.x );\n\tmat4 boneMatY = getBoneMatrix( skinIndex.y );\n\tmat4 boneMatZ = getBoneMatrix( skinIndex.z );\n\tmat4 boneMatW = getBoneMatrix( skinIndex.w );\n#endif",skinning_pars_vertex:"#ifdef USE_SKINNING\n\tuniform mat4 bindMatrix;\n\tuniform mat4 bindMatrixInverse;\n\tuniform highp sampler2D boneTexture;\n\tuniform int boneTextureSize;\n\tmat4 getBoneMatrix( const in float i ) {\n\t\tfloat j = i * 4.0;\n\t\tfloat x = mod( j, float( boneTextureSize ) );\n\t\tfloat y = floor( j / float( boneTextureSize ) );\n\t\tfloat dx = 1.0 / float( boneTextureSize );\n\t\tfloat dy = 1.0 / float( boneTextureSize );\n\t\ty = dy * ( y + 0.5 );\n\t\tvec4 v1 = texture2D( boneTexture, vec2( dx * ( x + 0.5 ), y ) );\n\t\tvec4 v2 = texture2D( boneTexture, vec2( dx * ( x + 1.5 ), y ) );\n\t\tvec4 v3 = texture2D( boneTexture, vec2( dx * ( x + 2.5 ), y ) );\n\t\tvec4 v4 = texture2D( boneTexture, vec2( dx * ( x + 3.5 ), y ) );\n\t\tmat4 bone = mat4( v1, v2, v3, v4 );\n\t\treturn bone;\n\t}\n#endif",skinning_vertex:"#ifdef USE_SKINNING\n\tvec4 skinVertex = bindMatrix * vec4( transformed, 1.0 );\n\tvec4 skinned = vec4( 0.0 );\n\tskinned += boneMatX * skinVertex * skinWeight.x;\n\tskinned += boneMatY * skinVertex * skinWeight.y;\n\tskinned += boneMatZ * skinVertex * skinWeight.z;\n\tskinned += boneMatW * skinVertex * skinWeight.w;\n\ttransformed = ( bindMatrixInverse * skinned ).xyz;\n#endif",skinnormal_vertex:"#ifdef USE_SKINNING\n\tmat4 skinMatrix = mat4( 0.0 );\n\tskinMatrix += skinWeight.x * boneMatX;\n\tskinMatrix += skinWeight.y * boneMatY;\n\tskinMatrix += skinWeight.z * boneMatZ;\n\tskinMatrix += skinWeight.w * boneMatW;\n\tskinMatrix = bindMatrixInverse * skinMatrix * bindMatrix;\n\tobjectNormal = vec4( skinMatrix * vec4( objectNormal, 0.0 ) ).xyz;\n\t#ifdef USE_TANGENT\n\t\tobjectTangent = vec4( skinMatrix * vec4( objectTangent, 0.0 ) ).xyz;\n\t#endif\n#endif",specularmap_fragment:"float specularStrength;\n#ifdef USE_SPECULARMAP\n\tvec4 texelSpecular = texture2D( specularMap, vSpecularMapUv );\n\tspecularStrength = texelSpecular.r;\n#else\n\tspecularStrength = 1.0;\n#endif",specularmap_pars_fragment:"#ifdef USE_SPECULARMAP\n\tuniform sampler2D specularMap;\n#endif",tonemapping_fragment:"#if defined( TONE_MAPPING )\n\tgl_FragColor.rgb = toneMapping( gl_FragColor.rgb );\n#endif",tonemapping_pars_fragment:"#ifndef saturate\n#define saturate( a ) clamp( a, 0.0, 1.0 )\n#endif\nuniform float toneMappingExposure;\nvec3 LinearToneMapping( vec3 color ) {\n\treturn saturate( toneMappingExposure * color );\n}\nvec3 ReinhardToneMapping( vec3 color ) {\n\tcolor *= toneMappingExposure;\n\treturn saturate( color / ( vec3( 1.0 ) + color ) );\n}\nvec3 OptimizedCineonToneMapping( vec3 color ) {\n\tcolor *= toneMappingExposure;\n\tcolor = max( vec3( 0.0 ), color - 0.004 );\n\treturn pow( ( color * ( 6.2 * color + 0.5 ) ) / ( color * ( 6.2 * color + 1.7 ) + 0.06 ), vec3( 2.2 ) );\n}\nvec3 RRTAndODTFit( vec3 v ) {\n\tvec3 a = v * ( v + 0.0245786 ) - 0.000090537;\n\tvec3 b = v * ( 0.983729 * v + 0.4329510 ) + 0.238081;\n\treturn a / b;\n}\nvec3 ACESFilmicToneMapping( vec3 color ) {\n\tconst mat3 ACESInputMat = mat3(\n\t\tvec3( 0.59719, 0.07600, 0.02840 ),\t\tvec3( 0.35458, 0.90834, 0.13383 ),\n\t\tvec3( 0.04823, 0.01566, 0.83777 )\n\t);\n\tconst mat3 ACESOutputMat = mat3(\n\t\tvec3( 1.60475, -0.10208, -0.00327 ),\t\tvec3( -0.53108, 1.10813, -0.07276 ),\n\t\tvec3( -0.07367, -0.00605, 1.07602 )\n\t);\n\tcolor *= toneMappingExposure / 0.6;\n\tcolor = ACESInputMat * color;\n\tcolor = RRTAndODTFit( color );\n\tcolor = ACESOutputMat * color;\n\treturn saturate( color );\n}\nvec3 CustomToneMapping( vec3 color ) { return color; }",transmission_fragment:"#ifdef USE_TRANSMISSION\n\tmaterial.transmission = transmission;\n\tmaterial.transmissionAlpha = 1.0;\n\tmaterial.thickness = thickness;\n\tmaterial.attenuationDistance = attenuationDistance;\n\tmaterial.attenuationColor = attenuationColor;\n\t#ifdef USE_TRANSMISSIONMAP\n\t\tmaterial.transmission *= texture2D( transmissionMap, vTransmissionMapUv ).r;\n\t#endif\n\t#ifdef USE_THICKNESSMAP\n\t\tmaterial.thickness *= texture2D( thicknessMap, vThicknessMapUv ).g;\n\t#endif\n\tvec3 pos = vWorldPosition;\n\tvec3 v = normalize( cameraPosition - pos );\n\tvec3 n = inverseTransformDirection( normal, viewMatrix );\n\tvec4 transmitted = getIBLVolumeRefraction(\n\t\tn, v, material.roughness, material.diffuseColor, material.specularColor, material.specularF90,\n\t\tpos, modelMatrix, viewMatrix, projectionMatrix, material.ior, material.thickness,\n\t\tmaterial.attenuationColor, material.attenuationDistance );\n\tmaterial.transmissionAlpha = mix( material.transmissionAlpha, transmitted.a, material.transmission );\n\ttotalDiffuse = mix( totalDiffuse, transmitted.rgb, material.transmission );\n#endif",transmission_pars_fragment:"#ifdef USE_TRANSMISSION\n\tuniform float transmission;\n\tuniform float thickness;\n\tuniform float attenuationDistance;\n\tuniform vec3 attenuationColor;\n\t#ifdef USE_TRANSMISSIONMAP\n\t\tuniform sampler2D transmissionMap;\n\t#endif\n\t#ifdef USE_THICKNESSMAP\n\t\tuniform sampler2D thicknessMap;\n\t#endif\n\tuniform vec2 transmissionSamplerSize;\n\tuniform sampler2D transmissionSamplerMap;\n\tuniform mat4 modelMatrix;\n\tuniform mat4 projectionMatrix;\n\tvarying vec3 vWorldPosition;\n\tfloat w0( float a ) {\n\t\treturn ( 1.0 / 6.0 ) * ( a * ( a * ( - a + 3.0 ) - 3.0 ) + 1.0 );\n\t}\n\tfloat w1( float a ) {\n\t\treturn ( 1.0 / 6.0 ) * ( a * a * ( 3.0 * a - 6.0 ) + 4.0 );\n\t}\n\tfloat w2( float a ){\n\t\treturn ( 1.0 / 6.0 ) * ( a * ( a * ( - 3.0 * a + 3.0 ) + 3.0 ) + 1.0 );\n\t}\n\tfloat w3( float a ) {\n\t\treturn ( 1.0 / 6.0 ) * ( a * a * a );\n\t}\n\tfloat g0( float a ) {\n\t\treturn w0( a ) + w1( a );\n\t}\n\tfloat g1( float a ) {\n\t\treturn w2( a ) + w3( a );\n\t}\n\tfloat h0( float a ) {\n\t\treturn - 1.0 + w1( a ) / ( w0( a ) + w1( a ) );\n\t}\n\tfloat h1( float a ) {\n\t\treturn 1.0 + w3( a ) / ( w2( a ) + w3( a ) );\n\t}\n\tvec4 bicubic( sampler2D tex, vec2 uv, vec4 texelSize, float lod ) {\n\t\tuv = uv * texelSize.zw + 0.5;\n\t\tvec2 iuv = floor( uv );\n\t\tvec2 fuv = fract( uv );\n\t\tfloat g0x = g0( fuv.x );\n\t\tfloat g1x = g1( fuv.x );\n\t\tfloat h0x = h0( fuv.x );\n\t\tfloat h1x = h1( fuv.x );\n\t\tfloat h0y = h0( fuv.y );\n\t\tfloat h1y = h1( fuv.y );\n\t\tvec2 p0 = ( vec2( iuv.x + h0x, iuv.y + h0y ) - 0.5 ) * texelSize.xy;\n\t\tvec2 p1 = ( vec2( iuv.x + h1x, iuv.y + h0y ) - 0.5 ) * texelSize.xy;\n\t\tvec2 p2 = ( vec2( iuv.x + h0x, iuv.y + h1y ) - 0.5 ) * texelSize.xy;\n\t\tvec2 p3 = ( vec2( iuv.x + h1x, iuv.y + h1y ) - 0.5 ) * texelSize.xy;\n\t\treturn g0( fuv.y ) * ( g0x * textureLod( tex, p0, lod ) + g1x * textureLod( tex, p1, lod ) ) +\n\t\t\tg1( fuv.y ) * ( g0x * textureLod( tex, p2, lod ) + g1x * textureLod( tex, p3, lod ) );\n\t}\n\tvec4 textureBicubic( sampler2D sampler, vec2 uv, float lod ) {\n\t\tvec2 fLodSize = vec2( textureSize( sampler, int( lod ) ) );\n\t\tvec2 cLodSize = vec2( textureSize( sampler, int( lod + 1.0 ) ) );\n\t\tvec2 fLodSizeInv = 1.0 / fLodSize;\n\t\tvec2 cLodSizeInv = 1.0 / cLodSize;\n\t\tvec4 fSample = bicubic( sampler, uv, vec4( fLodSizeInv, fLodSize ), floor( lod ) );\n\t\tvec4 cSample = bicubic( sampler, uv, vec4( cLodSizeInv, cLodSize ), ceil( lod ) );\n\t\treturn mix( fSample, cSample, fract( lod ) );\n\t}\n\tvec3 getVolumeTransmissionRay( const in vec3 n, const in vec3 v, const in float thickness, const in float ior, const in mat4 modelMatrix ) {\n\t\tvec3 refractionVector = refract( - v, normalize( n ), 1.0 / ior );\n\t\tvec3 modelScale;\n\t\tmodelScale.x = length( vec3( modelMatrix[ 0 ].xyz ) );\n\t\tmodelScale.y = length( vec3( modelMatrix[ 1 ].xyz ) );\n\t\tmodelScale.z = length( vec3( modelMatrix[ 2 ].xyz ) );\n\t\treturn normalize( refractionVector ) * thickness * modelScale;\n\t}\n\tfloat applyIorToRoughness( const in float roughness, const in float ior ) {\n\t\treturn roughness * clamp( ior * 2.0 - 2.0, 0.0, 1.0 );\n\t}\n\tvec4 getTransmissionSample( const in vec2 fragCoord, const in float roughness, const in float ior ) {\n\t\tfloat lod = log2( transmissionSamplerSize.x ) * applyIorToRoughness( roughness, ior );\n\t\treturn textureBicubic( transmissionSamplerMap, fragCoord.xy, lod );\n\t}\n\tvec3 volumeAttenuation( const in float transmissionDistance, const in vec3 attenuationColor, const in float attenuationDistance ) {\n\t\tif ( isinf( attenuationDistance ) ) {\n\t\t\treturn vec3( 1.0 );\n\t\t} else {\n\t\t\tvec3 attenuationCoefficient = -log( attenuationColor ) / attenuationDistance;\n\t\t\tvec3 transmittance = exp( - attenuationCoefficient * transmissionDistance );\t\t\treturn transmittance;\n\t\t}\n\t}\n\tvec4 getIBLVolumeRefraction( const in vec3 n, const in vec3 v, const in float roughness, const in vec3 diffuseColor,\n\t\tconst in vec3 specularColor, const in float specularF90, const in vec3 position, const in mat4 modelMatrix,\n\t\tconst in mat4 viewMatrix, const in mat4 projMatrix, const in float ior, const in float thickness,\n\t\tconst in vec3 attenuationColor, const in float attenuationDistance ) {\n\t\tvec3 transmissionRay = getVolumeTransmissionRay( n, v, thickness, ior, modelMatrix );\n\t\tvec3 refractedRayExit = position + transmissionRay;\n\t\tvec4 ndcPos = projMatrix * viewMatrix * vec4( refractedRayExit, 1.0 );\n\t\tvec2 refractionCoords = ndcPos.xy / ndcPos.w;\n\t\trefractionCoords += 1.0;\n\t\trefractionCoords /= 2.0;\n\t\tvec4 transmittedLight = getTransmissionSample( refractionCoords, roughness, ior );\n\t\tvec3 transmittance = diffuseColor * volumeAttenuation( length( transmissionRay ), attenuationColor, attenuationDistance );\n\t\tvec3 attenuatedColor = transmittance * transmittedLight.rgb;\n\t\tvec3 F = EnvironmentBRDF( n, v, specularColor, specularF90, roughness );\n\t\tfloat transmittanceFactor = ( transmittance.r + transmittance.g + transmittance.b ) / 3.0;\n\t\treturn vec4( ( 1.0 - F ) * attenuatedColor, 1.0 - ( 1.0 - transmittedLight.a ) * transmittanceFactor );\n\t}\n#endif",uv_pars_fragment:"#if defined( USE_UV ) || defined( USE_ANISOTROPY )\n\tvarying vec2 vUv;\n#endif\n#ifdef USE_MAP\n\tvarying vec2 vMapUv;\n#endif\n#ifdef USE_ALPHAMAP\n\tvarying vec2 vAlphaMapUv;\n#endif\n#ifdef USE_LIGHTMAP\n\tvarying vec2 vLightMapUv;\n#endif\n#ifdef USE_AOMAP\n\tvarying vec2 vAoMapUv;\n#endif\n#ifdef USE_BUMPMAP\n\tvarying vec2 vBumpMapUv;\n#endif\n#ifdef USE_NORMALMAP\n\tvarying vec2 vNormalMapUv;\n#endif\n#ifdef USE_EMISSIVEMAP\n\tvarying vec2 vEmissiveMapUv;\n#endif\n#ifdef USE_METALNESSMAP\n\tvarying vec2 vMetalnessMapUv;\n#endif\n#ifdef USE_ROUGHNESSMAP\n\tvarying vec2 vRoughnessMapUv;\n#endif\n#ifdef USE_ANISOTROPYMAP\n\tvarying vec2 vAnisotropyMapUv;\n#endif\n#ifdef USE_CLEARCOATMAP\n\tvarying vec2 vClearcoatMapUv;\n#endif\n#ifdef USE_CLEARCOAT_NORMALMAP\n\tvarying vec2 vClearcoatNormalMapUv;\n#endif\n#ifdef USE_CLEARCOAT_ROUGHNESSMAP\n\tvarying vec2 vClearcoatRoughnessMapUv;\n#endif\n#ifdef USE_IRIDESCENCEMAP\n\tvarying vec2 vIridescenceMapUv;\n#endif\n#ifdef USE_IRIDESCENCE_THICKNESSMAP\n\tvarying vec2 vIridescenceThicknessMapUv;\n#endif\n#ifdef USE_SHEEN_COLORMAP\n\tvarying vec2 vSheenColorMapUv;\n#endif\n#ifdef USE_SHEEN_ROUGHNESSMAP\n\tvarying vec2 vSheenRoughnessMapUv;\n#endif\n#ifdef USE_SPECULARMAP\n\tvarying vec2 vSpecularMapUv;\n#endif\n#ifdef USE_SPECULAR_COLORMAP\n\tvarying vec2 vSpecularColorMapUv;\n#endif\n#ifdef USE_SPECULAR_INTENSITYMAP\n\tvarying vec2 vSpecularIntensityMapUv;\n#endif\n#ifdef USE_TRANSMISSIONMAP\n\tuniform mat3 transmissionMapTransform;\n\tvarying vec2 vTransmissionMapUv;\n#endif\n#ifdef USE_THICKNESSMAP\n\tuniform mat3 thicknessMapTransform;\n\tvarying vec2 vThicknessMapUv;\n#endif",uv_pars_vertex:"#if defined( USE_UV ) || defined( USE_ANISOTROPY )\n\tvarying vec2 vUv;\n#endif\n#ifdef USE_MAP\n\tuniform mat3 mapTransform;\n\tvarying vec2 vMapUv;\n#endif\n#ifdef USE_ALPHAMAP\n\tuniform mat3 alphaMapTransform;\n\tvarying vec2 vAlphaMapUv;\n#endif\n#ifdef USE_LIGHTMAP\n\tuniform mat3 lightMapTransform;\n\tvarying vec2 vLightMapUv;\n#endif\n#ifdef USE_AOMAP\n\tuniform mat3 aoMapTransform;\n\tvarying vec2 vAoMapUv;\n#endif\n#ifdef USE_BUMPMAP\n\tuniform mat3 bumpMapTransform;\n\tvarying vec2 vBumpMapUv;\n#endif\n#ifdef USE_NORMALMAP\n\tuniform mat3 normalMapTransform;\n\tvarying vec2 vNormalMapUv;\n#endif\n#ifdef USE_DISPLACEMENTMAP\n\tuniform mat3 displacementMapTransform;\n\tvarying vec2 vDisplacementMapUv;\n#endif\n#ifdef USE_EMISSIVEMAP\n\tuniform mat3 emissiveMapTransform;\n\tvarying vec2 vEmissiveMapUv;\n#endif\n#ifdef USE_METALNESSMAP\n\tuniform mat3 metalnessMapTransform;\n\tvarying vec2 vMetalnessMapUv;\n#endif\n#ifdef USE_ROUGHNESSMAP\n\tuniform mat3 roughnessMapTransform;\n\tvarying vec2 vRoughnessMapUv;\n#endif\n#ifdef USE_ANISOTROPYMAP\n\tuniform mat3 anisotropyMapTransform;\n\tvarying vec2 vAnisotropyMapUv;\n#endif\n#ifdef USE_CLEARCOATMAP\n\tuniform mat3 clearcoatMapTransform;\n\tvarying vec2 vClearcoatMapUv;\n#endif\n#ifdef USE_CLEARCOAT_NORMALMAP\n\tuniform mat3 clearcoatNormalMapTransform;\n\tvarying vec2 vClearcoatNormalMapUv;\n#endif\n#ifdef USE_CLEARCOAT_ROUGHNESSMAP\n\tuniform mat3 clearcoatRoughnessMapTransform;\n\tvarying vec2 vClearcoatRoughnessMapUv;\n#endif\n#ifdef USE_SHEEN_COLORMAP\n\tuniform mat3 sheenColorMapTransform;\n\tvarying vec2 vSheenColorMapUv;\n#endif\n#ifdef USE_SHEEN_ROUGHNESSMAP\n\tuniform mat3 sheenRoughnessMapTransform;\n\tvarying vec2 vSheenRoughnessMapUv;\n#endif\n#ifdef USE_IRIDESCENCEMAP\n\tuniform mat3 iridescenceMapTransform;\n\tvarying vec2 vIridescenceMapUv;\n#endif\n#ifdef USE_IRIDESCENCE_THICKNESSMAP\n\tuniform mat3 iridescenceThicknessMapTransform;\n\tvarying vec2 vIridescenceThicknessMapUv;\n#endif\n#ifdef USE_SPECULARMAP\n\tuniform mat3 specularMapTransform;\n\tvarying vec2 vSpecularMapUv;\n#endif\n#ifdef USE_SPECULAR_COLORMAP\n\tuniform mat3 specularColorMapTransform;\n\tvarying vec2 vSpecularColorMapUv;\n#endif\n#ifdef USE_SPECULAR_INTENSITYMAP\n\tuniform mat3 specularIntensityMapTransform;\n\tvarying vec2 vSpecularIntensityMapUv;\n#endif\n#ifdef USE_TRANSMISSIONMAP\n\tuniform mat3 transmissionMapTransform;\n\tvarying vec2 vTransmissionMapUv;\n#endif\n#ifdef USE_THICKNESSMAP\n\tuniform mat3 thicknessMapTransform;\n\tvarying vec2 vThicknessMapUv;\n#endif",uv_vertex:"#if defined( USE_UV ) || defined( USE_ANISOTROPY )\n\tvUv = vec3( uv, 1 ).xy;\n#endif\n#ifdef USE_MAP\n\tvMapUv = ( mapTransform * vec3( MAP_UV, 1 ) ).xy;\n#endif\n#ifdef USE_ALPHAMAP\n\tvAlphaMapUv = ( alphaMapTransform * vec3( ALPHAMAP_UV, 1 ) ).xy;\n#endif\n#ifdef USE_LIGHTMAP\n\tvLightMapUv = ( lightMapTransform * vec3( LIGHTMAP_UV, 1 ) ).xy;\n#endif\n#ifdef USE_AOMAP\n\tvAoMapUv = ( aoMapTransform * vec3( AOMAP_UV, 1 ) ).xy;\n#endif\n#ifdef USE_BUMPMAP\n\tvBumpMapUv = ( bumpMapTransform * vec3( BUMPMAP_UV, 1 ) ).xy;\n#endif\n#ifdef USE_NORMALMAP\n\tvNormalMapUv = ( normalMapTransform * vec3( NORMALMAP_UV, 1 ) ).xy;\n#endif\n#ifdef USE_DISPLACEMENTMAP\n\tvDisplacementMapUv = ( displacementMapTransform * vec3( DISPLACEMENTMAP_UV, 1 ) ).xy;\n#endif\n#ifdef USE_EMISSIVEMAP\n\tvEmissiveMapUv = ( emissiveMapTransform * vec3( EMISSIVEMAP_UV, 1 ) ).xy;\n#endif\n#ifdef USE_METALNESSMAP\n\tvMetalnessMapUv = ( metalnessMapTransform * vec3( METALNESSMAP_UV, 1 ) ).xy;\n#endif\n#ifdef USE_ROUGHNESSMAP\n\tvRoughnessMapUv = ( roughnessMapTransform * vec3( ROUGHNESSMAP_UV, 1 ) ).xy;\n#endif\n#ifdef USE_ANISOTROPYMAP\n\tvAnisotropyMapUv = ( anisotropyMapTransform * vec3( ANISOTROPYMAP_UV, 1 ) ).xy;\n#endif\n#ifdef USE_CLEARCOATMAP\n\tvClearcoatMapUv = ( clearcoatMapTransform * vec3( CLEARCOATMAP_UV, 1 ) ).xy;\n#endif\n#ifdef USE_CLEARCOAT_NORMALMAP\n\tvClearcoatNormalMapUv = ( clearcoatNormalMapTransform * vec3( CLEARCOAT_NORMALMAP_UV, 1 ) ).xy;\n#endif\n#ifdef USE_CLEARCOAT_ROUGHNESSMAP\n\tvClearcoatRoughnessMapUv = ( clearcoatRoughnessMapTransform * vec3( CLEARCOAT_ROUGHNESSMAP_UV, 1 ) ).xy;\n#endif\n#ifdef USE_IRIDESCENCEMAP\n\tvIridescenceMapUv = ( iridescenceMapTransform * vec3( IRIDESCENCEMAP_UV, 1 ) ).xy;\n#endif\n#ifdef USE_IRIDESCENCE_THICKNESSMAP\n\tvIridescenceThicknessMapUv = ( iridescenceThicknessMapTransform * vec3( IRIDESCENCE_THICKNESSMAP_UV, 1 ) ).xy;\n#endif\n#ifdef USE_SHEEN_COLORMAP\n\tvSheenColorMapUv = ( sheenColorMapTransform * vec3( SHEEN_COLORMAP_UV, 1 ) ).xy;\n#endif\n#ifdef USE_SHEEN_ROUGHNESSMAP\n\tvSheenRoughnessMapUv = ( sheenRoughnessMapTransform * vec3( SHEEN_ROUGHNESSMAP_UV, 1 ) ).xy;\n#endif\n#ifdef USE_SPECULARMAP\n\tvSpecularMapUv = ( specularMapTransform * vec3( SPECULARMAP_UV, 1 ) ).xy;\n#endif\n#ifdef USE_SPECULAR_COLORMAP\n\tvSpecularColorMapUv = ( specularColorMapTransform * vec3( SPECULAR_COLORMAP_UV, 1 ) ).xy;\n#endif\n#ifdef USE_SPECULAR_INTENSITYMAP\n\tvSpecularIntensityMapUv = ( specularIntensityMapTransform * vec3( SPECULAR_INTENSITYMAP_UV, 1 ) ).xy;\n#endif\n#ifdef USE_TRANSMISSIONMAP\n\tvTransmissionMapUv = ( transmissionMapTransform * vec3( TRANSMISSIONMAP_UV, 1 ) ).xy;\n#endif\n#ifdef USE_THICKNESSMAP\n\tvThicknessMapUv = ( thicknessMapTransform * vec3( THICKNESSMAP_UV, 1 ) ).xy;\n#endif",worldpos_vertex:"#if defined( USE_ENVMAP ) || defined( DISTANCE ) || defined ( USE_SHADOWMAP ) || defined ( USE_TRANSMISSION ) || NUM_SPOT_LIGHT_COORDS > 0\n\tvec4 worldPosition = vec4( transformed, 1.0 );\n\t#ifdef USE_INSTANCING\n\t\tworldPosition = instanceMatrix * worldPosition;\n\t#endif\n\tworldPosition = modelMatrix * worldPosition;\n#endif",background_vert:"varying vec2 vUv;\nuniform mat3 uvTransform;\nvoid main() {\n\tvUv = ( uvTransform * vec3( uv, 1 ) ).xy;\n\tgl_Position = vec4( position.xy, 1.0, 1.0 );\n}",background_frag:"uniform sampler2D t2D;\nuniform float backgroundIntensity;\nvarying vec2 vUv;\nvoid main() {\n\tvec4 texColor = texture2D( t2D, vUv );\n\t#ifdef DECODE_VIDEO_TEXTURE\n\t\ttexColor = vec4( mix( pow( texColor.rgb * 0.9478672986 + vec3( 0.0521327014 ), vec3( 2.4 ) ), texColor.rgb * 0.0773993808, vec3( lessThanEqual( texColor.rgb, vec3( 0.04045 ) ) ) ), texColor.w );\n\t#endif\n\ttexColor.rgb *= backgroundIntensity;\n\tgl_FragColor = texColor;\n\t#include \n\t#include \n}",backgroundCube_vert:"varying vec3 vWorldDirection;\n#include \nvoid main() {\n\tvWorldDirection = transformDirection( position, modelMatrix );\n\t#include \n\t#include \n\tgl_Position.z = gl_Position.w;\n}",backgroundCube_frag:"#ifdef ENVMAP_TYPE_CUBE\n\tuniform samplerCube envMap;\n#elif defined( ENVMAP_TYPE_CUBE_UV )\n\tuniform sampler2D envMap;\n#endif\nuniform float flipEnvMap;\nuniform float backgroundBlurriness;\nuniform float backgroundIntensity;\nvarying vec3 vWorldDirection;\n#include \nvoid main() {\n\t#ifdef ENVMAP_TYPE_CUBE\n\t\tvec4 texColor = textureCube( envMap, vec3( flipEnvMap * vWorldDirection.x, vWorldDirection.yz ) );\n\t#elif defined( ENVMAP_TYPE_CUBE_UV )\n\t\tvec4 texColor = textureCubeUV( envMap, vWorldDirection, backgroundBlurriness );\n\t#else\n\t\tvec4 texColor = vec4( 0.0, 0.0, 0.0, 1.0 );\n\t#endif\n\ttexColor.rgb *= backgroundIntensity;\n\tgl_FragColor = texColor;\n\t#include \n\t#include \n}",cube_vert:"varying vec3 vWorldDirection;\n#include \nvoid main() {\n\tvWorldDirection = transformDirection( position, modelMatrix );\n\t#include \n\t#include \n\tgl_Position.z = gl_Position.w;\n}",cube_frag:"uniform samplerCube tCube;\nuniform float tFlip;\nuniform float opacity;\nvarying vec3 vWorldDirection;\nvoid main() {\n\tvec4 texColor = textureCube( tCube, vec3( tFlip * vWorldDirection.x, vWorldDirection.yz ) );\n\tgl_FragColor = texColor;\n\tgl_FragColor.a *= opacity;\n\t#include \n\t#include \n}",depth_vert:"#include \n#include \n#include \n#include \n#include \n#include \n#include \nvarying vec2 vHighPrecisionZW;\nvoid main() {\n\t#include \n\t#include \n\t#ifdef USE_DISPLACEMENTMAP\n\t\t#include \n\t\t#include \n\t\t#include \n\t#endif\n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\tvHighPrecisionZW = gl_Position.zw;\n}",depth_frag:"#if DEPTH_PACKING == 3200\n\tuniform float opacity;\n#endif\n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \nvarying vec2 vHighPrecisionZW;\nvoid main() {\n\t#include \n\tvec4 diffuseColor = vec4( 1.0 );\n\t#if DEPTH_PACKING == 3200\n\t\tdiffuseColor.a = opacity;\n\t#endif\n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\tfloat fragCoordZ = 0.5 * vHighPrecisionZW[0] / vHighPrecisionZW[1] + 0.5;\n\t#if DEPTH_PACKING == 3200\n\t\tgl_FragColor = vec4( vec3( 1.0 - fragCoordZ ), opacity );\n\t#elif DEPTH_PACKING == 3201\n\t\tgl_FragColor = packDepthToRGBA( fragCoordZ );\n\t#endif\n}",distanceRGBA_vert:"#define DISTANCE\nvarying vec3 vWorldPosition;\n#include \n#include \n#include \n#include \n#include \n#include \nvoid main() {\n\t#include \n\t#include \n\t#ifdef USE_DISPLACEMENTMAP\n\t\t#include \n\t\t#include \n\t\t#include \n\t#endif\n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\tvWorldPosition = worldPosition.xyz;\n}",distanceRGBA_frag:"#define DISTANCE\nuniform vec3 referencePosition;\nuniform float nearDistance;\nuniform float farDistance;\nvarying vec3 vWorldPosition;\n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \nvoid main () {\n\t#include \n\tvec4 diffuseColor = vec4( 1.0 );\n\t#include \n\t#include \n\t#include \n\t#include \n\tfloat dist = length( vWorldPosition - referencePosition );\n\tdist = ( dist - nearDistance ) / ( farDistance - nearDistance );\n\tdist = saturate( dist );\n\tgl_FragColor = packDepthToRGBA( dist );\n}",equirect_vert:"varying vec3 vWorldDirection;\n#include \nvoid main() {\n\tvWorldDirection = transformDirection( position, modelMatrix );\n\t#include \n\t#include \n}",equirect_frag:"uniform sampler2D tEquirect;\nvarying vec3 vWorldDirection;\n#include \nvoid main() {\n\tvec3 direction = normalize( vWorldDirection );\n\tvec2 sampleUV = equirectUv( direction );\n\tgl_FragColor = texture2D( tEquirect, sampleUV );\n\t#include \n\t#include \n}",linedashed_vert:"uniform float scale;\nattribute float lineDistance;\nvarying float vLineDistance;\n#include \n#include \n#include \n#include \n#include \n#include \n#include \nvoid main() {\n\tvLineDistance = scale * lineDistance;\n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n}",linedashed_frag:"uniform vec3 diffuse;\nuniform float opacity;\nuniform float dashSize;\nuniform float totalSize;\nvarying float vLineDistance;\n#include \n#include \n#include \n#include \n#include \n#include \n#include \nvoid main() {\n\t#include \n\tif ( mod( vLineDistance, totalSize ) > dashSize ) {\n\t\tdiscard;\n\t}\n\tvec3 outgoingLight = vec3( 0.0 );\n\tvec4 diffuseColor = vec4( diffuse, opacity );\n\t#include \n\t#include \n\t#include \n\toutgoingLight = diffuseColor.rgb;\n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n}",meshbasic_vert:"#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \nvoid main() {\n\t#include \n\t#include \n\t#include \n\t#if defined ( USE_ENVMAP ) || defined ( USE_SKINNING )\n\t\t#include \n\t\t#include \n\t\t#include \n\t\t#include \n\t\t#include \n\t#endif\n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n}",meshbasic_frag:"uniform vec3 diffuse;\nuniform float opacity;\n#ifndef FLAT_SHADED\n\tvarying vec3 vNormal;\n#endif\n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \nvoid main() {\n\t#include \n\tvec4 diffuseColor = vec4( diffuse, opacity );\n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\tReflectedLight reflectedLight = ReflectedLight( vec3( 0.0 ), vec3( 0.0 ), vec3( 0.0 ), vec3( 0.0 ) );\n\t#ifdef USE_LIGHTMAP\n\t\tvec4 lightMapTexel = texture2D( lightMap, vLightMapUv );\n\t\treflectedLight.indirectDiffuse += lightMapTexel.rgb * lightMapIntensity * RECIPROCAL_PI;\n\t#else\n\t\treflectedLight.indirectDiffuse += vec3( 1.0 );\n\t#endif\n\t#include \n\treflectedLight.indirectDiffuse *= diffuseColor.rgb;\n\tvec3 outgoingLight = reflectedLight.indirectDiffuse;\n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n}",meshlambert_vert:"#define LAMBERT\nvarying vec3 vViewPosition;\n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \nvoid main() {\n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\tvViewPosition = - mvPosition.xyz;\n\t#include \n\t#include \n\t#include \n\t#include \n}",meshlambert_frag:"#define LAMBERT\nuniform vec3 diffuse;\nuniform vec3 emissive;\nuniform float opacity;\n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \nvoid main() {\n\t#include \n\tvec4 diffuseColor = vec4( diffuse, opacity );\n\tReflectedLight reflectedLight = ReflectedLight( vec3( 0.0 ), vec3( 0.0 ), vec3( 0.0 ), vec3( 0.0 ) );\n\tvec3 totalEmissiveRadiance = emissive;\n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\tvec3 outgoingLight = reflectedLight.directDiffuse + reflectedLight.indirectDiffuse + totalEmissiveRadiance;\n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n}",meshmatcap_vert:"#define MATCAP\nvarying vec3 vViewPosition;\n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \nvoid main() {\n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\tvViewPosition = - mvPosition.xyz;\n}",meshmatcap_frag:"#define MATCAP\nuniform vec3 diffuse;\nuniform float opacity;\nuniform sampler2D matcap;\nvarying vec3 vViewPosition;\n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \nvoid main() {\n\t#include \n\tvec4 diffuseColor = vec4( diffuse, opacity );\n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\tvec3 viewDir = normalize( vViewPosition );\n\tvec3 x = normalize( vec3( viewDir.z, 0.0, - viewDir.x ) );\n\tvec3 y = cross( viewDir, x );\n\tvec2 uv = vec2( dot( x, normal ), dot( y, normal ) ) * 0.495 + 0.5;\n\t#ifdef USE_MATCAP\n\t\tvec4 matcapColor = texture2D( matcap, uv );\n\t#else\n\t\tvec4 matcapColor = vec4( vec3( mix( 0.2, 0.8, uv.y ) ), 1.0 );\n\t#endif\n\tvec3 outgoingLight = diffuseColor.rgb * matcapColor.rgb;\n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n}",meshnormal_vert:"#define NORMAL\n#if defined( FLAT_SHADED ) || defined( USE_BUMPMAP ) || defined( USE_NORMALMAP_TANGENTSPACE )\n\tvarying vec3 vViewPosition;\n#endif\n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \nvoid main() {\n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n#if defined( FLAT_SHADED ) || defined( USE_BUMPMAP ) || defined( USE_NORMALMAP_TANGENTSPACE )\n\tvViewPosition = - mvPosition.xyz;\n#endif\n}",meshnormal_frag:"#define NORMAL\nuniform float opacity;\n#if defined( FLAT_SHADED ) || defined( USE_BUMPMAP ) || defined( USE_NORMALMAP_TANGENTSPACE )\n\tvarying vec3 vViewPosition;\n#endif\n#include \n#include \n#include \n#include \n#include \n#include \n#include \nvoid main() {\n\t#include \n\t#include \n\t#include \n\t#include \n\tgl_FragColor = vec4( packNormalToRGB( normal ), opacity );\n\t#ifdef OPAQUE\n\t\tgl_FragColor.a = 1.0;\n\t#endif\n}",meshphong_vert:"#define PHONG\nvarying vec3 vViewPosition;\n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \nvoid main() {\n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\tvViewPosition = - mvPosition.xyz;\n\t#include \n\t#include \n\t#include \n\t#include \n}",meshphong_frag:"#define PHONG\nuniform vec3 diffuse;\nuniform vec3 emissive;\nuniform vec3 specular;\nuniform float shininess;\nuniform float opacity;\n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \nvoid main() {\n\t#include \n\tvec4 diffuseColor = vec4( diffuse, opacity );\n\tReflectedLight reflectedLight = ReflectedLight( vec3( 0.0 ), vec3( 0.0 ), vec3( 0.0 ), vec3( 0.0 ) );\n\tvec3 totalEmissiveRadiance = emissive;\n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\tvec3 outgoingLight = reflectedLight.directDiffuse + reflectedLight.indirectDiffuse + reflectedLight.directSpecular + reflectedLight.indirectSpecular + totalEmissiveRadiance;\n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n}",meshphysical_vert:"#define STANDARD\nvarying vec3 vViewPosition;\n#ifdef USE_TRANSMISSION\n\tvarying vec3 vWorldPosition;\n#endif\n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \nvoid main() {\n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\tvViewPosition = - mvPosition.xyz;\n\t#include \n\t#include \n\t#include \n#ifdef USE_TRANSMISSION\n\tvWorldPosition = worldPosition.xyz;\n#endif\n}",meshphysical_frag:"#define STANDARD\n#ifdef PHYSICAL\n\t#define IOR\n\t#define USE_SPECULAR\n#endif\nuniform vec3 diffuse;\nuniform vec3 emissive;\nuniform float roughness;\nuniform float metalness;\nuniform float opacity;\n#ifdef IOR\n\tuniform float ior;\n#endif\n#ifdef USE_SPECULAR\n\tuniform float specularIntensity;\n\tuniform vec3 specularColor;\n\t#ifdef USE_SPECULAR_COLORMAP\n\t\tuniform sampler2D specularColorMap;\n\t#endif\n\t#ifdef USE_SPECULAR_INTENSITYMAP\n\t\tuniform sampler2D specularIntensityMap;\n\t#endif\n#endif\n#ifdef USE_CLEARCOAT\n\tuniform float clearcoat;\n\tuniform float clearcoatRoughness;\n#endif\n#ifdef USE_IRIDESCENCE\n\tuniform float iridescence;\n\tuniform float iridescenceIOR;\n\tuniform float iridescenceThicknessMinimum;\n\tuniform float iridescenceThicknessMaximum;\n#endif\n#ifdef USE_SHEEN\n\tuniform vec3 sheenColor;\n\tuniform float sheenRoughness;\n\t#ifdef USE_SHEEN_COLORMAP\n\t\tuniform sampler2D sheenColorMap;\n\t#endif\n\t#ifdef USE_SHEEN_ROUGHNESSMAP\n\t\tuniform sampler2D sheenRoughnessMap;\n\t#endif\n#endif\n#ifdef USE_ANISOTROPY\n\tuniform vec2 anisotropyVector;\n\t#ifdef USE_ANISOTROPYMAP\n\t\tuniform sampler2D anisotropyMap;\n\t#endif\n#endif\nvarying vec3 vViewPosition;\n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \nvoid main() {\n\t#include \n\tvec4 diffuseColor = vec4( diffuse, opacity );\n\tReflectedLight reflectedLight = ReflectedLight( vec3( 0.0 ), vec3( 0.0 ), vec3( 0.0 ), vec3( 0.0 ) );\n\tvec3 totalEmissiveRadiance = emissive;\n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\tvec3 totalDiffuse = reflectedLight.directDiffuse + reflectedLight.indirectDiffuse;\n\tvec3 totalSpecular = reflectedLight.directSpecular + reflectedLight.indirectSpecular;\n\t#include \n\tvec3 outgoingLight = totalDiffuse + totalSpecular + totalEmissiveRadiance;\n\t#ifdef USE_SHEEN\n\t\tfloat sheenEnergyComp = 1.0 - 0.157 * max3( material.sheenColor );\n\t\toutgoingLight = outgoingLight * sheenEnergyComp + sheenSpecular;\n\t#endif\n\t#ifdef USE_CLEARCOAT\n\t\tfloat dotNVcc = saturate( dot( geometry.clearcoatNormal, geometry.viewDir ) );\n\t\tvec3 Fcc = F_Schlick( material.clearcoatF0, material.clearcoatF90, dotNVcc );\n\t\toutgoingLight = outgoingLight * ( 1.0 - material.clearcoat * Fcc ) + clearcoatSpecular * material.clearcoat;\n\t#endif\n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n}",meshtoon_vert:"#define TOON\nvarying vec3 vViewPosition;\n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \nvoid main() {\n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\tvViewPosition = - mvPosition.xyz;\n\t#include \n\t#include \n\t#include \n}",meshtoon_frag:"#define TOON\nuniform vec3 diffuse;\nuniform vec3 emissive;\nuniform float opacity;\n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \nvoid main() {\n\t#include \n\tvec4 diffuseColor = vec4( diffuse, opacity );\n\tReflectedLight reflectedLight = ReflectedLight( vec3( 0.0 ), vec3( 0.0 ), vec3( 0.0 ), vec3( 0.0 ) );\n\tvec3 totalEmissiveRadiance = emissive;\n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\tvec3 outgoingLight = reflectedLight.directDiffuse + reflectedLight.indirectDiffuse + totalEmissiveRadiance;\n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n}",points_vert:"uniform float size;\nuniform float scale;\n#include \n#include \n#include \n#include \n#include \n#include \n#ifdef USE_POINTS_UV\n\tvarying vec2 vUv;\n\tuniform mat3 uvTransform;\n#endif\nvoid main() {\n\t#ifdef USE_POINTS_UV\n\t\tvUv = ( uvTransform * vec3( uv, 1 ) ).xy;\n\t#endif\n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\tgl_PointSize = size;\n\t#ifdef USE_SIZEATTENUATION\n\t\tbool isPerspective = isPerspectiveMatrix( projectionMatrix );\n\t\tif ( isPerspective ) gl_PointSize *= ( scale / - mvPosition.z );\n\t#endif\n\t#include \n\t#include \n\t#include \n\t#include \n}",points_frag:"uniform vec3 diffuse;\nuniform float opacity;\n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \nvoid main() {\n\t#include \n\tvec3 outgoingLight = vec3( 0.0 );\n\tvec4 diffuseColor = vec4( diffuse, opacity );\n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\toutgoingLight = diffuseColor.rgb;\n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n}",shadow_vert:"#include \n#include \n#include \n#include \n#include \n#include \nvoid main() {\n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n}",shadow_frag:"uniform vec3 color;\nuniform float opacity;\n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \nvoid main() {\n\t#include \n\tgl_FragColor = vec4( color, opacity * ( 1.0 - getShadowMask() ) );\n\t#include \n\t#include \n\t#include \n}",sprite_vert:"uniform float rotation;\nuniform vec2 center;\n#include \n#include \n#include \n#include \n#include \nvoid main() {\n\t#include \n\tvec4 mvPosition = modelViewMatrix * vec4( 0.0, 0.0, 0.0, 1.0 );\n\tvec2 scale;\n\tscale.x = length( vec3( modelMatrix[ 0 ].x, modelMatrix[ 0 ].y, modelMatrix[ 0 ].z ) );\n\tscale.y = length( vec3( modelMatrix[ 1 ].x, modelMatrix[ 1 ].y, modelMatrix[ 1 ].z ) );\n\t#ifndef USE_SIZEATTENUATION\n\t\tbool isPerspective = isPerspectiveMatrix( projectionMatrix );\n\t\tif ( isPerspective ) scale *= - mvPosition.z;\n\t#endif\n\tvec2 alignedPosition = ( position.xy - ( center - vec2( 0.5 ) ) ) * scale;\n\tvec2 rotatedPosition;\n\trotatedPosition.x = cos( rotation ) * alignedPosition.x - sin( rotation ) * alignedPosition.y;\n\trotatedPosition.y = sin( rotation ) * alignedPosition.x + cos( rotation ) * alignedPosition.y;\n\tmvPosition.xy += rotatedPosition;\n\tgl_Position = projectionMatrix * mvPosition;\n\t#include \n\t#include \n\t#include \n}",sprite_frag:"uniform vec3 diffuse;\nuniform float opacity;\n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \nvoid main() {\n\t#include \n\tvec3 outgoingLight = vec3( 0.0 );\n\tvec4 diffuseColor = vec4( diffuse, opacity );\n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\toutgoingLight = diffuseColor.rgb;\n\t#include \n\t#include \n\t#include \n\t#include \n}"},Ri={common:{diffuse:{value:new Sn(16777215)},opacity:{value:1},map:{value:null},mapTransform:{value:new Ce},alphaMap:{value:null},alphaMapTransform:{value:new Ce},alphaTest:{value:0}},specularmap:{specularMap:{value:null},specularMapTransform:{value:new Ce}},envmap:{envMap:{value:null},flipEnvMap:{value:-1},reflectivity:{value:1},ior:{value:1.5},refractionRatio:{value:.98}},aomap:{aoMap:{value:null},aoMapIntensity:{value:1},aoMapTransform:{value:new Ce}},lightmap:{lightMap:{value:null},lightMapIntensity:{value:1},lightMapTransform:{value:new Ce}},bumpmap:{bumpMap:{value:null},bumpMapTransform:{value:new Ce},bumpScale:{value:1}},normalmap:{normalMap:{value:null},normalMapTransform:{value:new Ce},normalScale:{value:new Re(1,1)}},displacementmap:{displacementMap:{value:null},displacementMapTransform:{value:new Ce},displacementScale:{value:1},displacementBias:{value:0}},emissivemap:{emissiveMap:{value:null},emissiveMapTransform:{value:new Ce}},metalnessmap:{metalnessMap:{value:null},metalnessMapTransform:{value:new Ce}},roughnessmap:{roughnessMap:{value:null},roughnessMapTransform:{value:new Ce}},gradientmap:{gradientMap:{value:null}},fog:{fogDensity:{value:25e-5},fogNear:{value:1},fogFar:{value:2e3},fogColor:{value:new Sn(16777215)}},lights:{ambientLightColor:{value:[]},lightProbe:{value:[]},directionalLights:{value:[],properties:{direction:{},color:{}}},directionalLightShadows:{value:[],properties:{shadowBias:{},shadowNormalBias:{},shadowRadius:{},shadowMapSize:{}}},directionalShadowMap:{value:[]},directionalShadowMatrix:{value:[]},spotLights:{value:[],properties:{color:{},position:{},direction:{},distance:{},coneCos:{},penumbraCos:{},decay:{}}},spotLightShadows:{value:[],properties:{shadowBias:{},shadowNormalBias:{},shadowRadius:{},shadowMapSize:{}}},spotLightMap:{value:[]},spotShadowMap:{value:[]},spotLightMatrix:{value:[]},pointLights:{value:[],properties:{color:{},position:{},decay:{},distance:{}}},pointLightShadows:{value:[],properties:{shadowBias:{},shadowNormalBias:{},shadowRadius:{},shadowMapSize:{},shadowCameraNear:{},shadowCameraFar:{}}},pointShadowMap:{value:[]},pointShadowMatrix:{value:[]},hemisphereLights:{value:[],properties:{direction:{},skyColor:{},groundColor:{}}},rectAreaLights:{value:[],properties:{color:{},position:{},width:{},height:{}}},ltc_1:{value:null},ltc_2:{value:null}},points:{diffuse:{value:new Sn(16777215)},opacity:{value:1},size:{value:1},scale:{value:1},map:{value:null},alphaMap:{value:null},alphaMapTransform:{value:new Ce},alphaTest:{value:0},uvTransform:{value:new Ce}},sprite:{diffuse:{value:new Sn(16777215)},opacity:{value:1},center:{value:new Re(.5,.5)},rotation:{value:0},map:{value:null},mapTransform:{value:new Ce},alphaMap:{value:null},alphaMapTransform:{value:new Ce},alphaTest:{value:0}}},Ci={basic:{uniforms:oi([Ri.common,Ri.specularmap,Ri.envmap,Ri.aomap,Ri.lightmap,Ri.fog]),vertexShader:wi.meshbasic_vert,fragmentShader:wi.meshbasic_frag},lambert:{uniforms:oi([Ri.common,Ri.specularmap,Ri.envmap,Ri.aomap,Ri.lightmap,Ri.emissivemap,Ri.bumpmap,Ri.normalmap,Ri.displacementmap,Ri.fog,Ri.lights,{emissive:{value:new Sn(0)}}]),vertexShader:wi.meshlambert_vert,fragmentShader:wi.meshlambert_frag},phong:{uniforms:oi([Ri.common,Ri.specularmap,Ri.envmap,Ri.aomap,Ri.lightmap,Ri.emissivemap,Ri.bumpmap,Ri.normalmap,Ri.displacementmap,Ri.fog,Ri.lights,{emissive:{value:new Sn(0)},specular:{value:new Sn(1118481)},shininess:{value:30}}]),vertexShader:wi.meshphong_vert,fragmentShader:wi.meshphong_frag},standard:{uniforms:oi([Ri.common,Ri.envmap,Ri.aomap,Ri.lightmap,Ri.emissivemap,Ri.bumpmap,Ri.normalmap,Ri.displacementmap,Ri.roughnessmap,Ri.metalnessmap,Ri.fog,Ri.lights,{emissive:{value:new Sn(0)},roughness:{value:1},metalness:{value:0},envMapIntensity:{value:1}}]),vertexShader:wi.meshphysical_vert,fragmentShader:wi.meshphysical_frag},toon:{uniforms:oi([Ri.common,Ri.aomap,Ri.lightmap,Ri.emissivemap,Ri.bumpmap,Ri.normalmap,Ri.displacementmap,Ri.gradientmap,Ri.fog,Ri.lights,{emissive:{value:new Sn(0)}}]),vertexShader:wi.meshtoon_vert,fragmentShader:wi.meshtoon_frag},matcap:{uniforms:oi([Ri.common,Ri.bumpmap,Ri.normalmap,Ri.displacementmap,Ri.fog,{matcap:{value:null}}]),vertexShader:wi.meshmatcap_vert,fragmentShader:wi.meshmatcap_frag},points:{uniforms:oi([Ri.points,Ri.fog]),vertexShader:wi.points_vert,fragmentShader:wi.points_frag},dashed:{uniforms:oi([Ri.common,Ri.fog,{scale:{value:1},dashSize:{value:1},totalSize:{value:2}}]),vertexShader:wi.linedashed_vert,fragmentShader:wi.linedashed_frag},depth:{uniforms:oi([Ri.common,Ri.displacementmap]),vertexShader:wi.depth_vert,fragmentShader:wi.depth_frag},normal:{uniforms:oi([Ri.common,Ri.bumpmap,Ri.normalmap,Ri.displacementmap,{opacity:{value:1}}]),vertexShader:wi.meshnormal_vert,fragmentShader:wi.meshnormal_frag},sprite:{uniforms:oi([Ri.sprite,Ri.fog]),vertexShader:wi.sprite_vert,fragmentShader:wi.sprite_frag},background:{uniforms:{uvTransform:{value:new Ce},t2D:{value:null},backgroundIntensity:{value:1}},vertexShader:wi.background_vert,fragmentShader:wi.background_frag},backgroundCube:{uniforms:{envMap:{value:null},flipEnvMap:{value:-1},backgroundBlurriness:{value:0},backgroundIntensity:{value:1}},vertexShader:wi.backgroundCube_vert,fragmentShader:wi.backgroundCube_frag},cube:{uniforms:{tCube:{value:null},tFlip:{value:-1},opacity:{value:1}},vertexShader:wi.cube_vert,fragmentShader:wi.cube_frag},equirect:{uniforms:{tEquirect:{value:null}},vertexShader:wi.equirect_vert,fragmentShader:wi.equirect_frag},distanceRGBA:{uniforms:oi([Ri.common,Ri.displacementmap,{referencePosition:{value:new nt},nearDistance:{value:1},farDistance:{value:1e3}}]),vertexShader:wi.distanceRGBA_vert,fragmentShader:wi.distanceRGBA_frag},shadow:{uniforms:oi([Ri.lights,Ri.fog,{color:{value:new Sn(0)},opacity:{value:1}}]),vertexShader:wi.shadow_vert,fragmentShader:wi.shadow_frag}};Ci.physical={uniforms:oi([Ci.standard.uniforms,{clearcoat:{value:0},clearcoatMap:{value:null},clearcoatMapTransform:{value:new Ce},clearcoatNormalMap:{value:null},clearcoatNormalMapTransform:{value:new Ce},clearcoatNormalScale:{value:new Re(1,1)},clearcoatRoughness:{value:0},clearcoatRoughnessMap:{value:null},clearcoatRoughnessMapTransform:{value:new Ce},iridescence:{value:0},iridescenceMap:{value:null},iridescenceMapTransform:{value:new Ce},iridescenceIOR:{value:1.3},iridescenceThicknessMinimum:{value:100},iridescenceThicknessMaximum:{value:400},iridescenceThicknessMap:{value:null},iridescenceThicknessMapTransform:{value:new Ce},sheen:{value:0},sheenColor:{value:new Sn(0)},sheenColorMap:{value:null},sheenColorMapTransform:{value:new Ce},sheenRoughness:{value:1},sheenRoughnessMap:{value:null},sheenRoughnessMapTransform:{value:new Ce},transmission:{value:0},transmissionMap:{value:null},transmissionMapTransform:{value:new Ce},transmissionSamplerSize:{value:new Re},transmissionSamplerMap:{value:null},thickness:{value:0},thicknessMap:{value:null},thicknessMapTransform:{value:new Ce},attenuationDistance:{value:0},attenuationColor:{value:new Sn(0)},specularColor:{value:new Sn(1,1,1)},specularColorMap:{value:null},specularColorMapTransform:{value:new Ce},specularIntensity:{value:1},specularIntensityMap:{value:null},specularIntensityMapTransform:{value:new Ce},anisotropyVector:{value:new Re},anisotropyMap:{value:null},anisotropyMapTransform:{value:new Ce}}]),vertexShader:wi.meshphysical_vert,fragmentShader:wi.meshphysical_frag};const Li={r:0,b:0,g:0};function Pi(e,t,n,i,r,a,s){const o=new Sn(0);let l,h,d=!0===a?0:1,p=null,f=0,m=null;function g(t,n){t.getRGB(Li,li(e)),i.buffers.color.setClear(Li.r,Li.g,Li.b,n,s)}return{getClearColor:function(){return o},setClearColor:function(e,t=1){o.set(e),d=t,g(o,d)},getClearAlpha:function(){return d},setClearAlpha:function(e){d=e,g(o,d)},render:function(a,_){let v=!1,x=!0===_.isScene?_.background:null;if(x&&x.isTexture){x=(_.backgroundBlurriness>0?n:t).get(x)}null===x?g(o,d):x&&x.isColor&&(g(x,1),v=!0);const M=e.xr.getEnvironmentBlendMode();"additive"===M?i.buffers.color.setClear(0,0,0,1,s):"alpha-blend"===M&&i.buffers.color.setClear(0,0,0,0,s),(e.autoClear||v)&&e.clear(e.autoClearColor,e.autoClearDepth,e.autoClearStencil),x&&(x.isCubeTexture||x.mapping===A)?(void 0===h&&(h=new ii(new ai(1,1,1),new ui({name:"BackgroundCubeMaterial",uniforms:si(Ci.backgroundCube.uniforms),vertexShader:Ci.backgroundCube.vertexShader,fragmentShader:Ci.backgroundCube.fragmentShader,side:u,depthTest:!1,depthWrite:!1,fog:!1})),h.geometry.deleteAttribute("normal"),h.geometry.deleteAttribute("uv"),h.onBeforeRender=function(e,t,n){this.matrixWorld.copyPosition(n.matrixWorld)},Object.defineProperty(h.material,"envMap",{get:function(){return this.uniforms.envMap.value}}),r.update(h)),h.material.uniforms.envMap.value=x,h.material.uniforms.flipEnvMap.value=x.isCubeTexture&&!1===x.isRenderTargetTexture?-1:1,h.material.uniforms.backgroundBlurriness.value=_.backgroundBlurriness,h.material.uniforms.backgroundIntensity.value=_.backgroundIntensity,h.material.toneMapped=x.colorSpace!==re,p===x&&f===x.version&&m===e.toneMapping||(h.material.needsUpdate=!0,p=x,f=x.version,m=e.toneMapping),h.layers.enableAll(),a.unshift(h,h.geometry,h.material,0,0,null)):x&&x.isTexture&&(void 0===l&&(l=new ii(new Ai(2,2),new 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l=a||t.has("WEBGL_draw_buffers"),c=!0===n.logarithmicDepthBuffer,u=e.getParameter(e.MAX_TEXTURE_IMAGE_UNITS),h=e.getParameter(e.MAX_VERTEX_TEXTURE_IMAGE_UNITS),d=e.getParameter(e.MAX_TEXTURE_SIZE),p=e.getParameter(e.MAX_CUBE_MAP_TEXTURE_SIZE),f=e.getParameter(e.MAX_VERTEX_ATTRIBS),m=e.getParameter(e.MAX_VERTEX_UNIFORM_VECTORS),g=e.getParameter(e.MAX_VARYING_VECTORS),_=e.getParameter(e.MAX_FRAGMENT_UNIFORM_VECTORS),v=h>0,x=a||t.has("OES_texture_float");return{isWebGL2:a,drawBuffers:l,getMaxAnisotropy:function(){if(void 0!==i)return i;if(!0===t.has("EXT_texture_filter_anisotropic")){const n=t.get("EXT_texture_filter_anisotropic");i=e.getParameter(n.MAX_TEXTURE_MAX_ANISOTROPY_EXT)}else i=0;return i},getMaxPrecision:r,precision:s,logarithmicDepthBuffer:c,maxTextures:u,maxVertexTextures:h,maxTextureSize:d,maxCubemapSize:p,maxAttributes:f,maxVertexUniforms:m,maxVaryings:g,maxFragmentUniforms:_,vertexTextures:v,floatFragmentTextures:x,floatVertexTextures:v&&x,maxSamples:a?e.getParameter(e.MAX_SAMPLES):0}}function Ni(e){const t=this;let n=null,i=0,r=!1,a=!1;const s=new Mi,o=new Ce,l={value:null,needsUpdate:!1};function c(e,n,i,r){const a=null!==e?e.length:0;let c=null;if(0!==a){if(c=l.value,!0!==r||null===c){const t=i+4*a,r=n.matrixWorldInverse;o.getNormalMatrix(r),(null===c||c.length0);t.numPlanes=i,t.numIntersection=0}();else{const e=a?0:i,t=4*e;let r=f.clippingState||null;l.value=r,r=c(h,o,t,u);for(let i=0;i!==t;++i)r[i]=n[i];f.clippingState=r,this.numIntersection=d?this.numPlanes:0,this.numPlanes+=e}}}function Oi(e){let t=new WeakMap;function n(e,t){return t===T?e.mapping=E:t===b&&(e.mapping=S),e}function i(e){const n=e.target;n.removeEventListener("dispose",i);const r=t.get(n);void 0!==r&&(t.delete(n),r.dispose())}return{get:function(r){if(r&&r.isTexture&&!1===r.isRenderTargetTexture){const a=r.mapping;if(a===T||a===b){if(t.has(r)){return n(t.get(r).texture,r.mapping)}{const a=r.image;if(a&&a.height>0){const s=new gi(a.height/2);return s.fromEquirectangularTexture(e,r),t.set(r,s),r.addEventListener("dispose",i),n(s.texture,r.mapping)}return null}}}return r},dispose:function(){t=new WeakMap}}}class Fi extends hi{constructor(e=-1,t=1,n=1,i=-1,r=.1,a=2e3){super(),this.isOrthographicCamera=!0,this.type="OrthographicCamera",this.zoom=1,this.view=null,this.left=e,this.right=t,this.top=n,this.bottom=i,this.near=r,this.far=a,this.updateProjectionMatrix()}copy(e,t){return super.copy(e,t),this.left=e.left,this.right=e.right,this.top=e.top,this.bottom=e.bottom,this.near=e.near,this.far=e.far,this.zoom=e.zoom,this.view=null===e.view?null:Object.assign({},e.view),this}setViewOffset(e,t,n,i,r,a){null===this.view&&(this.view={enabled:!0,fullWidth:1,fullHeight:1,offsetX:0,offsetY:0,width:1,height:1}),this.view.enabled=!0,this.view.fullWidth=e,this.view.fullHeight=t,this.view.offsetX=n,this.view.offsetY=i,this.view.width=r,this.view.height=a,this.updateProjectionMatrix()}clearViewOffset(){null!==this.view&&(this.view.enabled=!1),this.updateProjectionMatrix()}updateProjectionMatrix(){const e=(this.right-this.left)/(2*this.zoom),t=(this.top-this.bottom)/(2*this.zoom),n=(this.right+this.left)/2,i=(this.top+this.bottom)/2;let r=n-e,a=n+e,s=i+t,o=i-t;if(null!==this.view&&this.view.enabled){const e=(this.right-this.left)/this.view.fullWidth/this.zoom,t=(this.top-this.bottom)/this.view.fullHeight/this.zoom;r+=e*this.view.offsetX,a=r+e*this.view.width,s-=t*this.view.offsetY,o=s-t*this.view.height}this.projectionMatrix.makeOrthographic(r,a,s,o,this.near,this.far,this.coordinateSystem),this.projectionMatrixInverse.copy(this.projectionMatrix).invert()}toJSON(e){const t=super.toJSON(e);return t.object.zoom=this.zoom,t.object.left=this.left,t.object.right=this.right,t.object.top=this.top,t.object.bottom=this.bottom,t.object.near=this.near,t.object.far=this.far,null!==this.view&&(t.object.view=Object.assign({},this.view)),t}}const Bi=[.125,.215,.35,.446,.526,.582],zi=20,Hi=new Fi,Vi=new Sn;let Gi=null;const ki=(1+Math.sqrt(5))/2,Wi=1/ki,Xi=[new nt(1,1,1),new nt(-1,1,1),new nt(1,1,-1),new nt(-1,1,-1),new nt(0,ki,Wi),new nt(0,ki,-Wi),new nt(Wi,0,ki),new nt(-Wi,0,ki),new nt(ki,Wi,0),new nt(-ki,Wi,0)];class ji{constructor(e){this._renderer=e,this._pingPongRenderTarget=null,this._lodMax=0,this._cubeSize=0,this._lodPlanes=[],this._sizeLods=[],this._sigmas=[],this._blurMaterial=null,this._cubemapMaterial=null,this._equirectMaterial=null,this._compileMaterial(this._blurMaterial)}fromScene(e,t=0,n=.1,i=100){Gi=this._renderer.getRenderTarget(),this._setSize(256);const r=this._allocateTargets();return r.depthBuffer=!0,this._sceneToCubeUV(e,n,i,r),t>0&&this._blur(r,0,0,t),this._applyPMREM(r),this._cleanup(r),r}fromEquirectangular(e,t=null){return this._fromTexture(e,t)}fromCubemap(e,t=null){return this._fromTexture(e,t)}compileCubemapShader(){null===this._cubemapMaterial&&(this._cubemapMaterial=Zi(),this._compileMaterial(this._cubemapMaterial))}compileEquirectangularShader(){null===this._equirectMaterial&&(this._equirectMaterial=Ki(),this._compileMaterial(this._equirectMaterial))}dispose(){this._dispose(),null!==this._cubemapMaterial&&this._cubemapMaterial.dispose(),null!==this._equirectMaterial&&this._equirectMaterial.dispose()}_setSize(e){this._lodMax=Math.floor(Math.log2(e)),this._cubeSize=Math.pow(2,this._lodMax)}_dispose(){null!==this._blurMaterial&&this._blurMaterial.dispose(),null!==this._pingPongRenderTarget&&this._pingPongRenderTarget.dispose();for(let e=0;ee-4?o=Bi[s-e+4-1]:0===s&&(o=0),i.push(o);const l=1/(a-2),c=-l,u=1+l,h=[c,c,u,c,u,u,c,c,u,u,c,u],d=6,p=6,f=3,m=2,g=1,_=new Float32Array(f*p*d),v=new Float32Array(m*p*d),x=new Float32Array(g*p*d);for(let e=0;e2?0:-1,i=[t,n,0,t+2/3,n,0,t+2/3,n+1,0,t,n,0,t+2/3,n+1,0,t,n+1,0];_.set(i,f*p*e),v.set(h,m*p*e);const r=[e,e,e,e,e,e];x.set(r,g*p*e)}const M=new zn;M.setAttribute("position",new Rn(_,f)),M.setAttribute("uv",new Rn(v,m)),M.setAttribute("faceIndex",new Rn(x,g)),t.push(M),r>4&&r--}return{lodPlanes:t,sizeLods:n,sigmas:i}}(i)),this._blurMaterial=function(e,t,n){const i=new Float32Array(zi),r=new nt(0,1,0),a=new ui({name:"SphericalGaussianBlur",defines:{n:zi,CUBEUV_TEXEL_WIDTH:1/t,CUBEUV_TEXEL_HEIGHT:1/n,CUBEUV_MAX_MIP:`${e}.0`},uniforms:{envMap:{value:null},samples:{value:1},weights:{value:i},latitudinal:{value:!1},dTheta:{value:0},mipInt:{value:0},poleAxis:{value:r}},vertexShader:Ji(),fragmentShader:"\n\n\t\t\tprecision mediump float;\n\t\t\tprecision mediump int;\n\n\t\t\tvarying vec3 vOutputDirection;\n\n\t\t\tuniform sampler2D envMap;\n\t\t\tuniform int samples;\n\t\t\tuniform float weights[ n ];\n\t\t\tuniform bool latitudinal;\n\t\t\tuniform float dTheta;\n\t\t\tuniform float mipInt;\n\t\t\tuniform vec3 poleAxis;\n\n\t\t\t#define ENVMAP_TYPE_CUBE_UV\n\t\t\t#include \n\n\t\t\tvec3 getSample( float theta, vec3 axis ) {\n\n\t\t\t\tfloat cosTheta = cos( theta );\n\t\t\t\t// Rodrigues' axis-angle rotation\n\t\t\t\tvec3 sampleDirection = vOutputDirection * cosTheta\n\t\t\t\t\t+ cross( axis, vOutputDirection ) * sin( theta )\n\t\t\t\t\t+ axis * dot( axis, vOutputDirection ) * ( 1.0 - cosTheta );\n\n\t\t\t\treturn bilinearCubeUV( envMap, sampleDirection, mipInt );\n\n\t\t\t}\n\n\t\t\tvoid main() {\n\n\t\t\t\tvec3 axis = latitudinal ? poleAxis : cross( poleAxis, vOutputDirection );\n\n\t\t\t\tif ( all( equal( axis, vec3( 0.0 ) ) ) ) {\n\n\t\t\t\t\taxis = vec3( vOutputDirection.z, 0.0, - vOutputDirection.x );\n\n\t\t\t\t}\n\n\t\t\t\taxis = normalize( axis );\n\n\t\t\t\tgl_FragColor = vec4( 0.0, 0.0, 0.0, 1.0 );\n\t\t\t\tgl_FragColor.rgb += weights[ 0 ] * getSample( 0.0, axis );\n\n\t\t\t\tfor ( int i = 1; i < n; i++ ) {\n\n\t\t\t\t\tif ( i >= samples ) {\n\n\t\t\t\t\t\tbreak;\n\n\t\t\t\t\t}\n\n\t\t\t\t\tfloat theta = dTheta * float( i );\n\t\t\t\t\tgl_FragColor.rgb += weights[ i ] * getSample( -1.0 * theta, axis );\n\t\t\t\t\tgl_FragColor.rgb += weights[ i ] * getSample( theta, axis );\n\n\t\t\t\t}\n\n\t\t\t}\n\t\t",blending:0,depthTest:!1,depthWrite:!1});return a}(i,e,t)}return i}_compileMaterial(e){const t=new ii(this._lodPlanes[0],e);this._renderer.compile(t,Hi)}_sceneToCubeUV(e,t,n,i){const r=new di(90,1,t,n),a=[1,-1,1,1,1,1],s=[1,1,1,-1,-1,-1],o=this._renderer,l=o.autoClear,c=o.toneMapping;o.getClearColor(Vi),o.toneMapping=g,o.autoClear=!1;const h=new bn({name:"PMREM.Background",side:u,depthWrite:!1,depthTest:!1}),d=new ii(new ai,h);let p=!1;const f=e.background;f?f.isColor&&(h.color.copy(f),e.background=null,p=!0):(h.color.copy(Vi),p=!0);for(let u=0;u<6;u++){const t=u%3;0===t?(r.up.set(0,a[u],0),r.lookAt(s[u],0,0)):1===t?(r.up.set(0,0,a[u]),r.lookAt(0,s[u],0)):(r.up.set(0,a[u],0),r.lookAt(0,0,s[u]));const n=this._cubeSize;Yi(i,t*n,u>2?n:0,n,n),o.setRenderTarget(i),p&&o.render(d,r),o.render(e,r)}d.geometry.dispose(),d.material.dispose(),o.toneMapping=c,o.autoClear=l,e.background=f}_textureToCubeUV(e,t){const n=this._renderer,i=e.mapping===E||e.mapping===S;i?(null===this._cubemapMaterial&&(this._cubemapMaterial=Zi()),this._cubemapMaterial.uniforms.flipEnvMap.value=!1===e.isRenderTargetTexture?-1:1):null===this._equirectMaterial&&(this._equirectMaterial=Ki());const r=i?this._cubemapMaterial:this._equirectMaterial,a=new ii(this._lodPlanes[0],r);r.uniforms.envMap.value=e;const s=this._cubeSize;Yi(t,0,0,3*s,2*s),n.setRenderTarget(t),n.render(a,Hi)}_applyPMREM(e){const t=this._renderer,n=t.autoClear;t.autoClear=!1;for(let i=1;izi&&console.warn(`sigmaRadians, ${r}, is too large and will clip, as it requested ${f} samples when the maximum is set to 20`);const m=[];let g=0;for(let x=0;x_-4?i-_+4:0),4*(this._cubeSize-v),3*v,2*v),o.setRenderTarget(t),o.render(c,Hi)}}function qi(e,t,n){const i=new Qe(e,t,n);return i.texture.mapping=A,i.texture.name="PMREM.cubeUv",i.scissorTest=!0,i}function Yi(e,t,n,i,r){e.viewport.set(t,n,i,r),e.scissor.set(t,n,i,r)}function Ki(){return new ui({name:"EquirectangularToCubeUV",uniforms:{envMap:{value:null}},vertexShader:Ji(),fragmentShader:"\n\n\t\t\tprecision mediump float;\n\t\t\tprecision mediump int;\n\n\t\t\tvarying vec3 vOutputDirection;\n\n\t\t\tuniform sampler2D envMap;\n\n\t\t\t#include \n\n\t\t\tvoid main() {\n\n\t\t\t\tvec3 outputDirection = normalize( vOutputDirection );\n\t\t\t\tvec2 uv = equirectUv( outputDirection );\n\n\t\t\t\tgl_FragColor = vec4( texture2D ( envMap, uv ).rgb, 1.0 );\n\n\t\t\t}\n\t\t",blending:0,depthTest:!1,depthWrite:!1})}function Zi(){return new ui({name:"CubemapToCubeUV",uniforms:{envMap:{value:null},flipEnvMap:{value:-1}},vertexShader:Ji(),fragmentShader:"\n\n\t\t\tprecision mediump float;\n\t\t\tprecision mediump int;\n\n\t\t\tuniform float flipEnvMap;\n\n\t\t\tvarying vec3 vOutputDirection;\n\n\t\t\tuniform samplerCube envMap;\n\n\t\t\tvoid main() {\n\n\t\t\t\tgl_FragColor = textureCube( envMap, vec3( flipEnvMap * vOutputDirection.x, vOutputDirection.yz ) );\n\n\t\t\t}\n\t\t",blending:0,depthTest:!1,depthWrite:!1})}function Ji(){return"\n\n\t\tprecision mediump float;\n\t\tprecision mediump int;\n\n\t\tattribute float faceIndex;\n\n\t\tvarying vec3 vOutputDirection;\n\n\t\t// RH coordinate system; PMREM face-indexing convention\n\t\tvec3 getDirection( vec2 uv, float face ) {\n\n\t\t\tuv = 2.0 * uv - 1.0;\n\n\t\t\tvec3 direction = vec3( uv, 1.0 );\n\n\t\t\tif ( face == 0.0 ) {\n\n\t\t\t\tdirection = direction.zyx; // ( 1, v, u ) pos x\n\n\t\t\t} else if ( face == 1.0 ) {\n\n\t\t\t\tdirection = direction.xzy;\n\t\t\t\tdirection.xz *= -1.0; // ( -u, 1, -v ) pos y\n\n\t\t\t} else if ( face == 2.0 ) {\n\n\t\t\t\tdirection.x *= -1.0; // ( -u, v, 1 ) pos z\n\n\t\t\t} else if ( face == 3.0 ) {\n\n\t\t\t\tdirection = direction.zyx;\n\t\t\t\tdirection.xz *= -1.0; // ( -1, v, -u ) neg x\n\n\t\t\t} else if ( face == 4.0 ) {\n\n\t\t\t\tdirection = direction.xzy;\n\t\t\t\tdirection.xy *= -1.0; // ( -u, -1, v ) neg y\n\n\t\t\t} else if ( face == 5.0 ) {\n\n\t\t\t\tdirection.z *= -1.0; // ( u, v, -1 ) neg z\n\n\t\t\t}\n\n\t\t\treturn direction;\n\n\t\t}\n\n\t\tvoid main() {\n\n\t\t\tvOutputDirection = getDirection( uv, faceIndex );\n\t\t\tgl_Position = vec4( position, 1.0 );\n\n\t\t}\n\t"}function Qi(e){let t=new WeakMap,n=null;function i(e){const n=e.target;n.removeEventListener("dispose",i);const r=t.get(n);void 0!==r&&(t.delete(n),r.dispose())}return{get:function(r){if(r&&r.isTexture){const a=r.mapping,s=a===T||a===b,o=a===E||a===S;if(s||o){if(r.isRenderTargetTexture&&!0===r.needsPMREMUpdate){r.needsPMREMUpdate=!1;let i=t.get(r);return null===n&&(n=new ji(e)),i=s?n.fromEquirectangular(r,i):n.fromCubemap(r,i),t.set(r,i),i.texture}if(t.has(r))return t.get(r).texture;{const a=r.image;if(s&&a&&a.height>0||o&&a&&function(e){let t=0;const n=6;for(let i=0;it.maxTextureSize&&(b=Math.ceil(T/t.maxTextureSize),T=t.maxTextureSize);const A=new Float32Array(T*b*4*p),w=new $e(A,T,b,p);w.type=z,w.needsUpdate=!0;const R=4*S;for(let L=0;L0)return e;const r=t*n;let a=hr[r];if(void 0===a&&(a=new Float32Array(r),hr[r]=a),0!==t){i.toArray(a,0);for(let i=1,r=0;i!==t;++i)r+=n,e[i].toArray(a,r)}return a}function _r(e,t){if(e.length!==t.length)return!1;for(let n=0,i=e.length;n":" "} ${e}: ${n[s]}`)}return i.join("\n")}(e.getShaderSource(t),i)}return r}function fa(e,t){const n=function(e){switch(e){case ae:return["Linear","( value )"];case re:return["sRGB","( value )"];default:return console.warn("THREE.WebGLProgram: Unsupported color space:",e),["Linear","( value )"]}}(t);return"vec4 "+e+"( vec4 value ) { return LinearTo"+n[0]+n[1]+"; }"}function ma(e,t){let n;switch(t){case _:n="Linear";break;case v:n="Reinhard";break;case x:n="OptimizedCineon";break;case M:n="ACESFilmic";break;case y:n="Custom";break;default:console.warn("THREE.WebGLProgram: Unsupported toneMapping:",t),n="Linear"}return"vec3 "+e+"( vec3 color ) { return "+n+"ToneMapping( color ); }"}function ga(e){return""!==e}function _a(e,t){const n=t.numSpotLightShadows+t.numSpotLightMaps-t.numSpotLightShadowsWithMaps;return e.replace(/NUM_DIR_LIGHTS/g,t.numDirLights).replace(/NUM_SPOT_LIGHTS/g,t.numSpotLights).replace(/NUM_SPOT_LIGHT_MAPS/g,t.numSpotLightMaps).replace(/NUM_SPOT_LIGHT_COORDS/g,n).replace(/NUM_RECT_AREA_LIGHTS/g,t.numRectAreaLights).replace(/NUM_POINT_LIGHTS/g,t.numPointLights).replace(/NUM_HEMI_LIGHTS/g,t.numHemiLights).replace(/NUM_DIR_LIGHT_SHADOWS/g,t.numDirLightShadows).replace(/NUM_SPOT_LIGHT_SHADOWS_WITH_MAPS/g,t.numSpotLightShadowsWithMaps).replace(/NUM_SPOT_LIGHT_SHADOWS/g,t.numSpotLightShadows).replace(/NUM_POINT_LIGHT_SHADOWS/g,t.numPointLightShadows)}function va(e,t){return e.replace(/NUM_CLIPPING_PLANES/g,t.numClippingPlanes).replace(/UNION_CLIPPING_PLANES/g,t.numClippingPlanes-t.numClipIntersection)}const xa=/^[ \t]*#include +<([\w\d./]+)>/gm;function Ma(e){return e.replace(xa,Ea)}const ya=new Map([["encodings_fragment","colorspace_fragment"],["encodings_pars_fragment","colorspace_pars_fragment"],["output_fragment","opaque_fragment"]]);function Ea(e,t){let n=wi[t];if(void 0===n){const e=ya.get(t);if(void 0===e)throw new Error("Can not resolve #include <"+t+">");n=wi[e],console.warn('THREE.WebGLRenderer: Shader chunk "%s" has been deprecated. Use "%s" instead.',t,e)}return Ma(n)}const Sa=/#pragma unroll_loop_start\s+for\s*\(\s*int\s+i\s*=\s*(\d+)\s*;\s*i\s*<\s*(\d+)\s*;\s*i\s*\+\+\s*\)\s*{([\s\S]+?)}\s+#pragma unroll_loop_end/g;function Ta(e){return e.replace(Sa,ba)}function ba(e,t,n,i){let r="";for(let a=parseInt(t);a0&&(b+="\n"),w=[M,"#define SHADER_TYPE "+n.shaderType,"#define SHADER_NAME "+n.shaderName,y].filter(ga).join("\n"),w.length>0&&(w+="\n")):(b=[Aa(n),"#define SHADER_TYPE "+n.shaderType,"#define SHADER_NAME "+n.shaderName,y,n.instancing?"#define USE_INSTANCING":"",n.instancingColor?"#define USE_INSTANCING_COLOR":"",n.useFog&&n.fog?"#define USE_FOG":"",n.useFog&&n.fogExp2?"#define FOG_EXP2":"",n.map?"#define USE_MAP":"",n.envMap?"#define USE_ENVMAP":"",n.envMap?"#define "+_:"",n.lightMap?"#define USE_LIGHTMAP":"",n.aoMap?"#define USE_AOMAP":"",n.bumpMap?"#define USE_BUMPMAP":"",n.normalMap?"#define USE_NORMALMAP":"",n.normalMapObjectSpace?"#define USE_NORMALMAP_OBJECTSPACE":"",n.normalMapTangentSpace?"#define USE_NORMALMAP_TANGENTSPACE":"",n.displacementMap?"#define USE_DISPLACEMENTMAP":"",n.emissiveMap?"#define USE_EMISSIVEMAP":"",n.anisotropyMap?"#define USE_ANISOTROPYMAP":"",n.clearcoatMap?"#define USE_CLEARCOATMAP":"",n.clearcoatRoughnessMap?"#define USE_CLEARCOAT_ROUGHNESSMAP":"",n.clearcoatNormalMap?"#define USE_CLEARCOAT_NORMALMAP":"",n.iridescenceMap?"#define USE_IRIDESCENCEMAP":"",n.iridescenceThicknessMap?"#define USE_IRIDESCENCE_THICKNESSMAP":"",n.specularMap?"#define USE_SPECULARMAP":"",n.specularColorMap?"#define USE_SPECULAR_COLORMAP":"",n.specularIntensityMap?"#define USE_SPECULAR_INTENSITYMAP":"",n.roughnessMap?"#define USE_ROUGHNESSMAP":"",n.metalnessMap?"#define USE_METALNESSMAP":"",n.alphaMap?"#define USE_ALPHAMAP":"",n.alphaHash?"#define USE_ALPHAHASH":"",n.transmission?"#define USE_TRANSMISSION":"",n.transmissionMap?"#define USE_TRANSMISSIONMAP":"",n.thicknessMap?"#define USE_THICKNESSMAP":"",n.sheenColorMap?"#define USE_SHEEN_COLORMAP":"",n.sheenRoughnessMap?"#define USE_SHEEN_ROUGHNESSMAP":"",n.mapUv?"#define MAP_UV "+n.mapUv:"",n.alphaMapUv?"#define ALPHAMAP_UV "+n.alphaMapUv:"",n.lightMapUv?"#define LIGHTMAP_UV "+n.lightMapUv:"",n.aoMapUv?"#define AOMAP_UV "+n.aoMapUv:"",n.emissiveMapUv?"#define EMISSIVEMAP_UV "+n.emissiveMapUv:"",n.bumpMapUv?"#define BUMPMAP_UV "+n.bumpMapUv:"",n.normalMapUv?"#define NORMALMAP_UV "+n.normalMapUv:"",n.displacementMapUv?"#define DISPLACEMENTMAP_UV "+n.displacementMapUv:"",n.metalnessMapUv?"#define METALNESSMAP_UV "+n.metalnessMapUv:"",n.roughnessMapUv?"#define ROUGHNESSMAP_UV "+n.roughnessMapUv:"",n.anisotropyMapUv?"#define ANISOTROPYMAP_UV "+n.anisotropyMapUv:"",n.clearcoatMapUv?"#define CLEARCOATMAP_UV "+n.clearcoatMapUv:"",n.clearcoatNormalMapUv?"#define CLEARCOAT_NORMALMAP_UV "+n.clearcoatNormalMapUv:"",n.clearcoatRoughnessMapUv?"#define CLEARCOAT_ROUGHNESSMAP_UV "+n.clearcoatRoughnessMapUv:"",n.iridescenceMapUv?"#define IRIDESCENCEMAP_UV "+n.iridescenceMapUv:"",n.iridescenceThicknessMapUv?"#define 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USE_MORPHTARGETS":"",n.morphNormals&&!1===n.flatShading?"#define USE_MORPHNORMALS":"",n.morphColors&&n.isWebGL2?"#define USE_MORPHCOLORS":"",n.morphTargetsCount>0&&n.isWebGL2?"#define MORPHTARGETS_TEXTURE":"",n.morphTargetsCount>0&&n.isWebGL2?"#define MORPHTARGETS_TEXTURE_STRIDE "+n.morphTextureStride:"",n.morphTargetsCount>0&&n.isWebGL2?"#define MORPHTARGETS_COUNT "+n.morphTargetsCount:"",n.doubleSided?"#define DOUBLE_SIDED":"",n.flipSided?"#define FLIP_SIDED":"",n.shadowMapEnabled?"#define USE_SHADOWMAP":"",n.shadowMapEnabled?"#define "+h:"",n.sizeAttenuation?"#define USE_SIZEATTENUATION":"",n.useLegacyLights?"#define LEGACY_LIGHTS":"",n.logarithmicDepthBuffer?"#define USE_LOGDEPTHBUF":"",n.logarithmicDepthBuffer&&n.rendererExtensionFragDepth?"#define USE_LOGDEPTHBUF_EXT":"","uniform mat4 modelMatrix;","uniform mat4 modelViewMatrix;","uniform mat4 projectionMatrix;","uniform mat4 viewMatrix;","uniform mat3 normalMatrix;","uniform vec3 cameraPosition;","uniform bool 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e=0,t=a.length;e0&&(t.isWebGL2||!0===e.has("OES_texture_float_linear")?(r.rectAreaLTC1=Ri.LTC_FLOAT_1,r.rectAreaLTC2=Ri.LTC_FLOAT_2):!0===e.has("OES_texture_half_float_linear")?(r.rectAreaLTC1=Ri.LTC_HALF_1,r.rectAreaLTC2=Ri.LTC_HALF_2):console.error("THREE.WebGLRenderer: Unable to use RectAreaLight. 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Va(e,t),a.push(s)):s=a[r],s},dispose:function(){n=new WeakMap}}}class ka extends vn{constructor(e){super(),this.isMeshDepthMaterial=!0,this.type="MeshDepthMaterial",this.depthPacking=3200,this.map=null,this.alphaMap=null,this.displacementMap=null,this.displacementScale=1,this.displacementBias=0,this.wireframe=!1,this.wireframeLinewidth=1,this.setValues(e)}copy(e){return super.copy(e),this.depthPacking=e.depthPacking,this.map=e.map,this.alphaMap=e.alphaMap,this.displacementMap=e.displacementMap,this.displacementScale=e.displacementScale,this.displacementBias=e.displacementBias,this.wireframe=e.wireframe,this.wireframeLinewidth=e.wireframeLinewidth,this}}class Wa extends vn{constructor(e){super(),this.isMeshDistanceMaterial=!0,this.type="MeshDistanceMaterial",this.map=null,this.alphaMap=null,this.displacementMap=null,this.displacementScale=1,this.displacementBias=0,this.setValues(e)}copy(e){return super.copy(e),this.map=e.map,this.alphaMap=e.alphaMap,this.displacementMap=e.displacementMap,this.displacementScale=e.displacementScale,this.displacementBias=e.displacementBias,this}}function Xa(e,t,n){let i=new Si;const r=new Re,a=new Re,o=new Ze,d=new ka({depthPacking:3201}),p=new Wa,f={},m=n.maxTextureSize,g={[c]:u,[u]:c,[h]:h},_=new ui({defines:{VSM_SAMPLES:8},uniforms:{shadow_pass:{value:null},resolution:{value:new Re},radius:{value:4}},vertexShader:"void main() {\n\tgl_Position = vec4( position, 1.0 );\n}",fragmentShader:"uniform sampler2D shadow_pass;\nuniform vec2 resolution;\nuniform float radius;\n#include \nvoid main() {\n\tconst float samples = float( VSM_SAMPLES );\n\tfloat mean = 0.0;\n\tfloat squared_mean = 0.0;\n\tfloat uvStride = samples <= 1.0 ? 0.0 : 2.0 / ( samples - 1.0 );\n\tfloat uvStart = samples <= 1.0 ? 0.0 : - 1.0;\n\tfor ( float i = 0.0; i < samples; i ++ ) {\n\t\tfloat uvOffset = uvStart + i * uvStride;\n\t\t#ifdef HORIZONTAL_PASS\n\t\t\tvec2 distribution = unpackRGBATo2Half( texture2D( shadow_pass, ( gl_FragCoord.xy + vec2( uvOffset, 0.0 ) * radius ) / resolution ) );\n\t\t\tmean += distribution.x;\n\t\t\tsquared_mean += distribution.y * distribution.y + distribution.x * distribution.x;\n\t\t#else\n\t\t\tfloat depth = unpackRGBAToDepth( texture2D( shadow_pass, ( gl_FragCoord.xy + vec2( 0.0, uvOffset ) * radius ) / resolution ) );\n\t\t\tmean += depth;\n\t\t\tsquared_mean += depth * depth;\n\t\t#endif\n\t}\n\tmean = mean / samples;\n\tsquared_mean = squared_mean / samples;\n\tfloat std_dev = sqrt( squared_mean - mean * mean );\n\tgl_FragColor = pack2HalfToRGBA( vec2( mean, std_dev ) );\n}"}),v=_.clone();v.defines.HORIZONTAL_PASS=1;const x=new zn;x.setAttribute("position",new Rn(new Float32Array([-1,-1,.5,3,-1,.5,-1,3,.5]),3));const M=new ii(x,_),y=this;this.enabled=!1,this.autoUpdate=!0,this.needsUpdate=!1,this.type=s;let E=this.type;function S(n,i){const a=t.update(M);_.defines.VSM_SAMPLES!==n.blurSamples&&(_.defines.VSM_SAMPLES=n.blurSamples,v.defines.VSM_SAMPLES=n.blurSamples,_.needsUpdate=!0,v.needsUpdate=!0),null===n.mapPass&&(n.mapPass=new Qe(r.x,r.y)),_.uniforms.shadow_pass.value=n.map.texture,_.uniforms.resolution.value=n.mapSize,_.uniforms.radius.value=n.radius,e.setRenderTarget(n.mapPass),e.clear(),e.renderBufferDirect(i,null,a,_,M,null),v.uniforms.shadow_pass.value=n.mapPass.texture,v.uniforms.resolution.value=n.mapSize,v.uniforms.radius.value=n.radius,e.setRenderTarget(n.map),e.clear(),e.renderBufferDirect(i,null,a,v,M,null)}function T(t,n,i,r){let a=null;const s=!0===i.isPointLight?t.customDistanceMaterial:t.customDepthMaterial;if(void 0!==s)a=s;else if(a=!0===i.isPointLight?p:d,e.localClippingEnabled&&!0===n.clipShadows&&Array.isArray(n.clippingPlanes)&&0!==n.clippingPlanes.length||n.displacementMap&&0!==n.displacementScale||n.alphaMap&&n.alphaTest>0||n.map&&n.alphaTest>0){const e=a.uuid,t=n.uuid;let i=f[e];void 0===i&&(i={},f[e]=i);let r=i[t];void 0===r&&(r=a.clone(),i[t]=r),a=r}if(a.visible=n.visible,a.wireframe=n.wireframe,a.side=r===l?null!==n.shadowSide?n.shadowSide:n.side:null!==n.shadowSide?n.shadowSide:g[n.side],a.alphaMap=n.alphaMap,a.alphaTest=n.alphaTest,a.map=n.map,a.clipShadows=n.clipShadows,a.clippingPlanes=n.clippingPlanes,a.clipIntersection=n.clipIntersection,a.displacementMap=n.displacementMap,a.displacementScale=n.displacementScale,a.displacementBias=n.displacementBias,a.wireframeLinewidth=n.wireframeLinewidth,a.linewidth=n.linewidth,!0===i.isPointLight&&!0===a.isMeshDistanceMaterial){e.properties.get(a).light=i}return a}function b(n,r,a,s,o){if(!1===n.visible)return;if(n.layers.test(r.layers)&&(n.isMesh||n.isLine||n.isPoints)&&(n.castShadow||n.receiveShadow&&o===l)&&(!n.frustumCulled||i.intersectsObject(n))){n.modelViewMatrix.multiplyMatrices(a.matrixWorldInverse,n.matrixWorld);const i=t.update(n),r=n.material;if(Array.isArray(r)){const t=i.groups;for(let l=0,c=t.length;lm||r.y>m)&&(r.x>m&&(a.x=Math.floor(m/h.x),r.x=a.x*h.x,u.mapSize.x=a.x),r.y>m&&(a.y=Math.floor(m/h.y),r.y=a.y*h.y,u.mapSize.y=a.y)),null===u.map||!0===p||!0===f){const e=this.type!==l?{minFilter:L,magFilter:L}:{};null!==u.map&&u.map.dispose(),u.map=new Qe(r.x,r.y,e),u.map.texture.name=c.name+".shadowMap",u.camera.updateProjectionMatrix()}e.setRenderTarget(u.map),e.clear();const _=u.getViewportCount();for(let e=0;e<_;e++){const t=u.getViewport(e);o.set(a.x*t.x,a.y*t.y,a.x*t.z,a.y*t.w),d.viewport(o),u.updateMatrices(c,e),i=u.getFrustum(),b(n,s,u.camera,c,this.type)}!0!==u.isPointLightShadow&&this.type===l&&S(u,s),u.needsUpdate=!1}E=this.type,y.needsUpdate=!1,e.setRenderTarget(c,u,h)}}function ja(e,t,n){const i=n.isWebGL2;const r=new function(){let t=!1;const n=new Ze;let i=null;const r=new Ze(0,0,0,0);return{setMask:function(n){i===n||t||(e.colorMask(n,n,n,n),i=n)},setLocked:function(e){t=e},setClear:function(t,i,a,s,o){!0===o&&(t*=s,i*=s,a*=s),n.set(t,i,a,s),!1===r.equals(n)&&(e.clearColor(t,i,a,s),r.copy(n))},reset:function(){t=!1,i=null,r.set(-1,0,0,0)}}},a=new function(){let t=!1,n=null,i=null,r=null;return{setTest:function(t){t?k(e.DEPTH_TEST):W(e.DEPTH_TEST)},setMask:function(i){n===i||t||(e.depthMask(i),n=i)},setFunc:function(t){if(i!==t){switch(t){case 0:e.depthFunc(e.NEVER);break;case 1:e.depthFunc(e.ALWAYS);break;case 2:e.depthFunc(e.LESS);break;case 3:default:e.depthFunc(e.LEQUAL);break;case 4:e.depthFunc(e.EQUAL);break;case 5:e.depthFunc(e.GEQUAL);break;case 6:e.depthFunc(e.GREATER);break;case 7:e.depthFunc(e.NOTEQUAL)}i=t}},setLocked:function(e){t=e},setClear:function(t){r!==t&&(e.clearDepth(t),r=t)},reset:function(){t=!1,n=null,i=null,r=null}}},s=new function(){let t=!1,n=null,i=null,r=null,a=null,s=null,o=null,l=null,c=null;return{setTest:function(n){t||(n?k(e.STENCIL_TEST):W(e.STENCIL_TEST))},setMask:function(i){n===i||t||(e.stencilMask(i),n=i)},setFunc:function(t,n,s){i===t&&r===n&&a===s||(e.stencilFunc(t,n,s),i=t,r=n,a=s)},setOp:function(t,n,i){s===t&&o===n&&l===i||(e.stencilOp(t,n,i),s=t,o=n,l=i)},setLocked:function(e){t=e},setClear:function(t){c!==t&&(e.clearStencil(t),c=t)},reset:function(){t=!1,n=null,i=null,r=null,a=null,s=null,o=null,l=null,c=null}}},o=new WeakMap,l=new WeakMap;let c={},p={},f=new WeakMap,m=[],g=null,_=!1,v=null,x=null,M=null,y=null,E=null,S=null,T=null,b=!1,A=null,w=null,R=null,C=null,L=null;const P=e.getParameter(e.MAX_COMBINED_TEXTURE_IMAGE_UNITS);let U=!1,D=0;const I=e.getParameter(e.VERSION);-1!==I.indexOf("WebGL")?(D=parseFloat(/^WebGL (\d)/.exec(I)[1]),U=D>=1):-1!==I.indexOf("OpenGL ES")&&(D=parseFloat(/^OpenGL ES (\d)/.exec(I)[1]),U=D>=2);let N=null,O={};const F=e.getParameter(e.SCISSOR_BOX),B=e.getParameter(e.VIEWPORT),z=(new Ze).fromArray(F),H=(new Ze).fromArray(B);function V(t,n,r,a){const s=new Uint8Array(4),o=e.createTexture();e.bindTexture(t,o),e.texParameteri(t,e.TEXTURE_MIN_FILTER,e.NEAREST),e.texParameteri(t,e.TEXTURE_MAG_FILTER,e.NEAREST);for(let l=0;li||e.height>i)&&(r=i/Math.max(e.width,e.height)),r<1||!0===t){if("undefined"!=typeof HTMLImageElement&&e instanceof HTMLImageElement||"undefined"!=typeof HTMLCanvasElement&&e instanceof HTMLCanvasElement||"undefined"!=typeof ImageBitmap&&e instanceof ImageBitmap){const i=t?Te:Math.floor,a=i(r*e.width),s=i(r*e.height);void 0===m&&(m=v(a,s));const o=n?v(a,s):m;o.width=a,o.height=s;return o.getContext("2d").drawImage(e,0,0,a,s),console.warn("THREE.WebGLRenderer: Texture has been resized from ("+e.width+"x"+e.height+") to ("+a+"x"+s+")."),o}return"data"in e&&console.warn("THREE.WebGLRenderer: Image in DataTexture is too big ("+e.width+"x"+e.height+")."),e}return e}function M(e){return Ee(e.width)&&Ee(e.height)}function y(e,t){return e.generateMipmaps&&t&&e.minFilter!==L&&e.minFilter!==D}function E(t){e.generateMipmap(t)}function S(n,i,r,a,s=!1){if(!1===o)return i;if(null!==n){if(void 0!==e[n])return e[n];console.warn("THREE.WebGLRenderer: Attempt to use non-existing WebGL internal format '"+n+"'")}let l=i;return i===e.RED&&(r===e.FLOAT&&(l=e.R32F),r===e.HALF_FLOAT&&(l=e.R16F),r===e.UNSIGNED_BYTE&&(l=e.R8)),i===e.RED_INTEGER&&(r===e.UNSIGNED_BYTE&&(l=e.R8UI),r===e.UNSIGNED_SHORT&&(l=e.R16UI),r===e.UNSIGNED_INT&&(l=e.R32UI),r===e.BYTE&&(l=e.R8I),r===e.SHORT&&(l=e.R16I),r===e.INT&&(l=e.R32I)),i===e.RG&&(r===e.FLOAT&&(l=e.RG32F),r===e.HALF_FLOAT&&(l=e.RG16F),r===e.UNSIGNED_BYTE&&(l=e.RG8)),i===e.RGBA&&(r===e.FLOAT&&(l=e.RGBA32F),r===e.HALF_FLOAT&&(l=e.RGBA16F),r===e.UNSIGNED_BYTE&&(l=a===re&&!1===s?e.SRGB8_ALPHA8:e.RGBA8),r===e.UNSIGNED_SHORT_4_4_4_4&&(l=e.RGBA4),r===e.UNSIGNED_SHORT_5_5_5_1&&(l=e.RGB5_A1)),l!==e.R16F&&l!==e.R32F&&l!==e.RG16F&&l!==e.RG32F&&l!==e.RGBA16F&&l!==e.RGBA32F||t.get("EXT_color_buffer_float"),l}function T(e,t,n){return!0===y(e,n)||e.isFramebufferTexture&&e.minFilter!==L&&e.minFilter!==D?Math.log2(Math.max(t.width,t.height))+1:void 0!==e.mipmaps&&e.mipmaps.length>0?e.mipmaps.length:e.isCompressedTexture&&Array.isArray(e.image)?t.mipmaps.length:1}function b(t){return t===L||t===P||t===U?e.NEAREST:e.LINEAR}function A(e){const t=e.target;t.removeEventListener("dispose",A),function(e){const t=i.get(e);if(void 0===t.__webglInit)return;const n=e.source,r=g.get(n);if(r){const i=r[t.__cacheKey];i.usedTimes--,0===i.usedTimes&&X(e),0===Object.keys(r).length&&g.delete(n)}i.remove(e)}(t),t.isVideoTexture&&f.delete(t)}function F(t){const n=t.target;n.removeEventListener("dispose",F),function(t){const n=t.texture,r=i.get(t),a=i.get(n);void 0!==a.__webglTexture&&(e.deleteTexture(a.__webglTexture),s.memory.textures--);t.depthTexture&&t.depthTexture.dispose();if(t.isWebGLCubeRenderTarget)for(let i=0;i<6;i++){if(Array.isArray(r.__webglFramebuffer[i]))for(let t=0;t0&&a.__version!==t.version){const e=t.image;if(null===e)console.warn("THREE.WebGLRenderer: Texture marked for update but no image data found.");else{if(!1!==e.complete)return void $(a,t,r);console.warn("THREE.WebGLRenderer: Texture marked for update but image is 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d=i.get(h);if(h.version!==d.__version||!0===c){n.activeTexture(e.TEXTURE0+s),e.pixelStorei(e.UNPACK_FLIP_Y_WEBGL,r.flipY),e.pixelStorei(e.UNPACK_PREMULTIPLY_ALPHA_WEBGL,r.premultiplyAlpha),e.pixelStorei(e.UNPACK_ALIGNMENT,r.unpackAlignment),e.pixelStorei(e.UNPACK_COLORSPACE_CONVERSION_WEBGL,e.NONE);const t=function(e){return!o&&(e.wrapS!==R||e.wrapT!==R||e.minFilter!==L&&e.minFilter!==D)}(r)&&!1===M(r.image);let i=x(r.image,t,!1,u);i=ce(r,i);const p=M(i)||o,f=a.convert(r.format,r.colorSpace);let m,g=a.convert(r.type),_=S(r.internalFormat,f,g,r.colorSpace,r.isVideoTexture);J(l,r,p);const v=r.mipmaps,b=o&&!0!==r.isVideoTexture,A=void 0===d.__version||!0===c,w=T(r,i,p);if(r.isDepthTexture)_=e.DEPTH_COMPONENT,o?_=r.type===z?e.DEPTH_COMPONENT32F:r.type===B?e.DEPTH_COMPONENT24:r.type===V?e.DEPTH24_STENCIL8:e.DEPTH_COMPONENT16:r.type===z&&console.error("WebGLRenderer: Floating point depth texture requires 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t=0,i=v.length;t>c),i=Math.max(1,r.height>>c);l===e.TEXTURE_3D||l===e.TEXTURE_2D_ARRAY?n.texImage3D(l,c,p,t,i,r.depth,0,u,h,null):n.texImage2D(l,c,p,t,i,0,u,h,null)}n.bindFramebuffer(e.FRAMEBUFFER,t),le(r)?d.framebufferTexture2DMultisampleEXT(e.FRAMEBUFFER,o,l,i.get(s).__webglTexture,0,oe(r)):(l===e.TEXTURE_2D||l>=e.TEXTURE_CUBE_MAP_POSITIVE_X&&l<=e.TEXTURE_CUBE_MAP_NEGATIVE_Z)&&e.framebufferTexture2D(e.FRAMEBUFFER,o,l,i.get(s).__webglTexture,c),n.bindFramebuffer(e.FRAMEBUFFER,null)}function te(t,n,i){if(e.bindRenderbuffer(e.RENDERBUFFER,t),n.depthBuffer&&!n.stencilBuffer){let r=e.DEPTH_COMPONENT16;if(i||le(n)){const t=n.depthTexture;t&&t.isDepthTexture&&(t.type===z?r=e.DEPTH_COMPONENT32F:t.type===B&&(r=e.DEPTH_COMPONENT24));const i=oe(n);le(n)?d.renderbufferStorageMultisampleEXT(e.RENDERBUFFER,i,r,n.width,n.height):e.renderbufferStorageMultisample(e.RENDERBUFFER,i,r,n.width,n.height)}else e.renderbufferStorage(e.RENDERBUFFER,r,n.width,n.height);e.framebufferRenderbuffer(e.FRAMEBUFFER,e.DEPTH_ATTACHMENT,e.RENDERBUFFER,t)}else if(n.depthBuffer&&n.stencilBuffer){const r=oe(n);i&&!1===le(n)?e.renderbufferStorageMultisample(e.RENDERBUFFER,r,e.DEPTH24_STENCIL8,n.width,n.height):le(n)?d.renderbufferStorageMultisampleEXT(e.RENDERBUFFER,r,e.DEPTH24_STENCIL8,n.width,n.height):e.renderbufferStorage(e.RENDERBUFFER,e.DEPTH_STENCIL,n.width,n.height),e.framebufferRenderbuffer(e.FRAMEBUFFER,e.DEPTH_STENCIL_ATTACHMENT,e.RENDERBUFFER,t)}else{const t=!0===n.isWebGLMultipleRenderTargets?n.texture:[n.texture];for(let r=0;r0&&!0===t.has("WEBGL_multisampled_render_to_texture")&&!1!==n.__useRenderToTexture}function ce(e,n){const i=e.colorSpace,r=e.format,a=e.type;return!0===e.isCompressedTexture||!0===e.isVideoTexture||e.format===ue||i!==ae&&i!==ie&&(i===re||i===se?!1===o?!0===t.has("EXT_sRGB")&&r===G?(e.format=ue,e.minFilter=D,e.generateMipmaps=!1):n=We.sRGBToLinear(n):r===G&&a===N||console.warn("THREE.WebGLTextures: sRGB encoded textures have to use RGBAFormat and UnsignedByteType."):console.error("THREE.WebGLTextures: Unsupported texture color space:",i)),n}this.allocateTextureUnit=function(){const e=j;return e>=l&&console.warn("THREE.WebGLTextures: Trying to use "+e+" texture units while this GPU supports only "+l),j+=1,e},this.resetTextureUnits=function(){j=0},this.setTexture2D=q,this.setTexture2DArray=function(t,r){const a=i.get(t);t.version>0&&a.__version!==t.version?$(a,t,r):n.bindTexture(e.TEXTURE_2D_ARRAY,a.__webglTexture,e.TEXTURE0+r)},this.setTexture3D=function(t,r){const a=i.get(t);t.version>0&&a.__version!==t.version?$(a,t,r):n.bindTexture(e.TEXTURE_3D,a.__webglTexture,e.TEXTURE0+r)},this.setTextureCube=function(t,r){const s=i.get(t);t.version>0&&s.__version!==t.version?function(t,r,s){if(6!==r.image.length)return;const l=Q(t,r),u=r.source;n.bindTexture(e.TEXTURE_CUBE_MAP,t.__webglTexture,e.TEXTURE0+s);const h=i.get(u);if(u.version!==h.__version||!0===l){n.activeTexture(e.TEXTURE0+s),e.pixelStorei(e.UNPACK_FLIP_Y_WEBGL,r.flipY),e.pixelStorei(e.UNPACK_PREMULTIPLY_ALPHA_WEBGL,r.premultiplyAlpha),e.pixelStorei(e.UNPACK_ALIGNMENT,r.unpackAlignment),e.pixelStorei(e.UNPACK_COLORSPACE_CONVERSION_WEBGL,e.NONE);const t=r.isCompressedTexture||r.image[0].isCompressedTexture,i=r.image[0]&&r.image[0].isDataTexture,d=[];for(let e=0;e<6;e++)d[e]=t||i?i?r.image[e].image:r.image[e]:x(r.image[e],!1,!0,c),d[e]=ce(r,d[e]);const p=d[0],f=M(p)||o,m=a.convert(r.format,r.colorSpace),g=a.convert(r.type),_=S(r.internalFormat,m,g,r.colorSpace),v=o&&!0!==r.isVideoTexture,b=void 0===h.__version||!0===l;let A,w=T(r,p,f);if(J(e.TEXTURE_CUBE_MAP,r,f),t){v&&b&&n.texStorage2D(e.TEXTURE_CUBE_MAP,w,_,p.width,p.height);for(let t=0;t<6;t++){A=d[t].mipmaps;for(let i=0;i0&&w++,n.texStorage2D(e.TEXTURE_CUBE_MAP,w,_,d[0].width,d[0].height));for(let t=0;t<6;t++)if(i){v?n.texSubImage2D(e.TEXTURE_CUBE_MAP_POSITIVE_X+t,0,0,0,d[t].width,d[t].height,m,g,d[t].data):n.texImage2D(e.TEXTURE_CUBE_MAP_POSITIVE_X+t,0,_,d[t].width,d[t].height,0,m,g,d[t].data);for(let i=0;i0){c.__webglFramebuffer[t]=[];for(let n=0;n0){c.__webglFramebuffer=[];for(let t=0;t0&&!1===le(t)){const i=d?l:[l];c.__webglMultisampledFramebuffer=e.createFramebuffer(),c.__webglColorRenderbuffer=[],n.bindFramebuffer(e.FRAMEBUFFER,c.__webglMultisampledFramebuffer);for(let n=0;n0)for(let i=0;i0)for(let n=0;n0&&!1===le(t)){const r=t.isWebGLMultipleRenderTargets?t.texture:[t.texture],a=t.width,s=t.height;let o=e.COLOR_BUFFER_BIT;const l=[],c=t.stencilBuffer?e.DEPTH_STENCIL_ATTACHMENT:e.DEPTH_ATTACHMENT,u=i.get(t),h=!0===t.isWebGLMultipleRenderTargets;if(h)for(let t=0;to+c?(l.inputState.pinching=!1,this.dispatchEvent({type:"pinchend",handedness:e.handedness,target:this})):!l.inputState.pinching&&s<=o-c&&(l.inputState.pinching=!0,this.dispatchEvent({type:"pinchstart",handedness:e.handedness,target:this}))}else null!==o&&e.gripSpace&&(r=t.getPose(e.gripSpace,n),null!==r&&(o.matrix.fromArray(r.transform.matrix),o.matrix.decompose(o.position,o.rotation,o.scale),o.matrixWorldNeedsUpdate=!0,r.linearVelocity?(o.hasLinearVelocity=!0,o.linearVelocity.copy(r.linearVelocity)):o.hasLinearVelocity=!1,r.angularVelocity?(o.hasAngularVelocity=!0,o.angularVelocity.copy(r.angularVelocity)):o.hasAngularVelocity=!1));null!==s&&(i=t.getPose(e.targetRaySpace,n),null===i&&null!==r&&(i=r),null!==i&&(s.matrix.fromArray(i.transform.matrix),s.matrix.decompose(s.position,s.rotation,s.scale),s.matrixWorldNeedsUpdate=!0,i.linearVelocity?(s.hasLinearVelocity=!0,s.linearVelocity.copy(i.linearVelocity)):s.hasLinearVelocity=!1,i.angularVelocity?(s.hasAngularVelocity=!0,s.angularVelocity.copy(i.angularVelocity)):s.hasAngularVelocity=!1,this.dispatchEvent(Ja)))}return null!==s&&(s.visible=null!==i),null!==o&&(o.visible=null!==r),null!==l&&(l.visible=null!==a),this}_getHandJoint(e,t){if(void 0===e.joints[t.jointName]){const n=new Za;n.matrixAutoUpdate=!1,n.visible=!1,e.joints[t.jointName]=n,e.add(n)}return e.joints[t.jointName]}}class $a extends Ke{constructor(e,t,n,i,r,a,s,o,l,c){if((c=void 0!==c?c:k)!==k&&c!==W)throw new Error("DepthTexture format must be either THREE.DepthFormat or THREE.DepthStencilFormat");void 0===n&&c===k&&(n=B),void 0===n&&c===W&&(n=V),super(null,i,r,a,s,o,c,n,l),this.isDepthTexture=!0,this.image={width:e,height:t},this.magFilter=void 0!==s?s:L,this.minFilter=void 0!==o?o:L,this.flipY=!1,this.generateMipmaps=!1,this.compareFunction=null}copy(e){return super.copy(e),this.compareFunction=e.compareFunction,this}toJSON(e){const t=super.toJSON(e);return null!==this.compareFunction&&(t.compareFunction=this.compareFunction),t}}class es extends pe{constructor(e,t){super();const n=this;let i=null,r=1,a=null,s="local-floor",o=1,l=null,c=null,u=null,h=null,d=null,p=null;const f=t.getContextAttributes();let m=null,g=null;const _=[],v=[],x=new di;x.layers.enable(1),x.viewport=new Ze;const M=new di;M.layers.enable(2),M.viewport=new Ze;const y=[x,M],E=new Ka;E.layers.enable(1),E.layers.enable(2);let S=null,T=null;function b(e){const t=v.indexOf(e.inputSource);if(-1===t)return;const n=_[t];void 0!==n&&(n.update(e.inputSource,e.frame,l||a),n.dispatchEvent({type:e.type,data:e.inputSource}))}function A(){i.removeEventListener("select",b),i.removeEventListener("selectstart",b),i.removeEventListener("selectend",b),i.removeEventListener("squeeze",b),i.removeEventListener("squeezestart",b),i.removeEventListener("squeezeend",b),i.removeEventListener("end",A),i.removeEventListener("inputsourceschange",w);for(let e=0;e<_.length;e++){const t=v[e];null!==t&&(v[e]=null,_[e].disconnect(t))}S=null,T=null,e.setRenderTarget(m),d=null,h=null,u=null,i=null,g=null,U.stop(),n.isPresenting=!1,n.dispatchEvent({type:"sessionend"})}function w(e){for(let t=0;t=0&&(v[i]=null,_[i].disconnect(n))}for(let t=0;t=v.length){v.push(n),i=e;break}if(null===v[e]){v[e]=n,i=e;break}}if(-1===i)break}const r=_[i];r&&r.connect(n)}}this.cameraAutoUpdate=!0,this.enabled=!1,this.isPresenting=!1,this.getController=function(e){let t=_[e];return void 0===t&&(t=new Qa,_[e]=t),t.getTargetRaySpace()},this.getControllerGrip=function(e){let t=_[e];return void 0===t&&(t=new Qa,_[e]=t),t.getGripSpace()},this.getHand=function(e){let t=_[e];return void 0===t&&(t=new Qa,_[e]=t),t.getHandSpace()},this.setFramebufferScaleFactor=function(e){r=e,!0===n.isPresenting&&console.warn("THREE.WebXRManager: Cannot change framebuffer scale while presenting.")},this.setReferenceSpaceType=function(e){s=e,!0===n.isPresenting&&console.warn("THREE.WebXRManager: Cannot change reference space type while presenting.")},this.getReferenceSpace=function(){return l||a},this.setReferenceSpace=function(e){l=e},this.getBaseLayer=function(){return null!==h?h:d},this.getBinding=function(){return u},this.getFrame=function(){return p},this.getSession=function(){return i},this.setSession=async function(c){if(i=c,null!==i){if(m=e.getRenderTarget(),i.addEventListener("select",b),i.addEventListener("selectstart",b),i.addEventListener("selectend",b),i.addEventListener("squeeze",b),i.addEventListener("squeezestart",b),i.addEventListener("squeezeend",b),i.addEventListener("end",A),i.addEventListener("inputsourceschange",w),!0!==f.xrCompatible&&await t.makeXRCompatible(),void 0===i.renderState.layers||!1===e.capabilities.isWebGL2){const n={antialias:void 0!==i.renderState.layers||f.antialias,alpha:!0,depth:f.depth,stencil:f.stencil,framebufferScaleFactor:r};d=new XRWebGLLayer(i,t,n),i.updateRenderState({baseLayer:d}),g=new Qe(d.framebufferWidth,d.framebufferHeight,{format:G,type:N,colorSpace:e.outputColorSpace,stencilBuffer:f.stencil})}else{let n=null,a=null,s=null;f.depth&&(s=f.stencil?t.DEPTH24_STENCIL8:t.DEPTH_COMPONENT24,n=f.stencil?W:k,a=f.stencil?V:B);const o={colorFormat:t.RGBA8,depthFormat:s,scaleFactor:r};u=new XRWebGLBinding(i,t),h=u.createProjectionLayer(o),i.updateRenderState({layers:[h]}),g=new Qe(h.textureWidth,h.textureHeight,{format:G,type:N,depthTexture:new $a(h.textureWidth,h.textureHeight,a,void 0,void 0,void 0,void 0,void 0,void 0,n),stencilBuffer:f.stencil,colorSpace:e.outputColorSpace,samples:f.antialias?4:0});e.properties.get(g).__ignoreDepthValues=h.ignoreDepthValues}g.isXRRenderTarget=!0,this.setFoveation(o),l=null,a=await i.requestReferenceSpace(s),U.setContext(i),U.start(),n.isPresenting=!0,n.dispatchEvent({type:"sessionstart"})}},this.getEnvironmentBlendMode=function(){if(null!==i)return i.environmentBlendMode};const R=new nt,C=new nt;function L(e,t){null===t?e.matrixWorld.copy(e.matrix):e.matrixWorld.multiplyMatrices(t.matrixWorld,e.matrix),e.matrixWorldInverse.copy(e.matrixWorld).invert()}this.updateCamera=function(e){if(null===i)return;E.near=M.near=x.near=e.near,E.far=M.far=x.far=e.far,S===E.near&&T===E.far||(i.updateRenderState({depthNear:E.near,depthFar:E.far}),S=E.near,T=E.far);const t=e.parent,n=E.cameras;L(E,t);for(let i=0;i0&&(i.alphaTest.value=r.alphaTest);const a=t.get(r).envMap;if(a&&(i.envMap.value=a,i.flipEnvMap.value=a.isCubeTexture&&!1===a.isRenderTargetTexture?-1:1,i.reflectivity.value=r.reflectivity,i.ior.value=r.ior,i.refractionRatio.value=r.refractionRatio),r.lightMap){i.lightMap.value=r.lightMap;const t=!0===e._useLegacyLights?Math.PI:1;i.lightMapIntensity.value=r.lightMapIntensity*t,n(r.lightMap,i.lightMapTransform)}r.aoMap&&(i.aoMap.value=r.aoMap,i.aoMapIntensity.value=r.aoMapIntensity,n(r.aoMap,i.aoMapTransform))}return{refreshFogUniforms:function(t,n){n.color.getRGB(t.fogColor.value,li(e)),n.isFog?(t.fogNear.value=n.near,t.fogFar.value=n.far):n.isFogExp2&&(t.fogDensity.value=n.density)},refreshMaterialUniforms:function(e,r,a,s,o){r.isMeshBasicMaterial||r.isMeshLambertMaterial?i(e,r):r.isMeshToonMaterial?(i(e,r),function(e,t){t.gradientMap&&(e.gradientMap.value=t.gradientMap)}(e,r)):r.isMeshPhongMaterial?(i(e,r),function(e,t){e.specular.value.copy(t.specular),e.shininess.value=Math.max(t.shininess,1e-4)}(e,r)):r.isMeshStandardMaterial?(i(e,r),function(e,i){e.metalness.value=i.metalness,i.metalnessMap&&(e.metalnessMap.value=i.metalnessMap,n(i.metalnessMap,e.metalnessMapTransform));e.roughness.value=i.roughness,i.roughnessMap&&(e.roughnessMap.value=i.roughnessMap,n(i.roughnessMap,e.roughnessMapTransform));const r=t.get(i).envMap;r&&(e.envMapIntensity.value=i.envMapIntensity)}(e,r),r.isMeshPhysicalMaterial&&function(e,t,i){e.ior.value=t.ior,t.sheen>0&&(e.sheenColor.value.copy(t.sheenColor).multiplyScalar(t.sheen),e.sheenRoughness.value=t.sheenRoughness,t.sheenColorMap&&(e.sheenColorMap.value=t.sheenColorMap,n(t.sheenColorMap,e.sheenColorMapTransform)),t.sheenRoughnessMap&&(e.sheenRoughnessMap.value=t.sheenRoughnessMap,n(t.sheenRoughnessMap,e.sheenRoughnessMapTransform)));t.clearcoat>0&&(e.clearcoat.value=t.clearcoat,e.clearcoatRoughness.value=t.clearcoatRoughness,t.clearcoatMap&&(e.clearcoatMap.value=t.clearcoatMap,n(t.clearcoatMap,e.clearcoatMapTransform)),t.clearcoatRoughnessMap&&(e.clearcoatRoughnessMap.value=t.clearcoatRoughnessMap,n(t.clearcoatRoughnessMap,e.clearcoatRoughnessMapTransform)),t.clearcoatNormalMap&&(e.clearcoatNormalMap.value=t.clearcoatNormalMap,n(t.clearcoatNormalMap,e.clearcoatNormalMapTransform),e.clearcoatNormalScale.value.copy(t.clearcoatNormalScale),t.side===u&&e.clearcoatNormalScale.value.negate()));t.iridescence>0&&(e.iridescence.value=t.iridescence,e.iridescenceIOR.value=t.iridescenceIOR,e.iridescenceThicknessMinimum.value=t.iridescenceThicknessRange[0],e.iridescenceThicknessMaximum.value=t.iridescenceThicknessRange[1],t.iridescenceMap&&(e.iridescenceMap.value=t.iridescenceMap,n(t.iridescenceMap,e.iridescenceMapTransform)),t.iridescenceThicknessMap&&(e.iridescenceThicknessMap.value=t.iridescenceThicknessMap,n(t.iridescenceThicknessMap,e.iridescenceThicknessMapTransform)));t.transmission>0&&(e.transmission.value=t.transmission,e.transmissionSamplerMap.value=i.texture,e.transmissionSamplerSize.value.set(i.width,i.height),t.transmissionMap&&(e.transmissionMap.value=t.transmissionMap,n(t.transmissionMap,e.transmissionMapTransform)),e.thickness.value=t.thickness,t.thicknessMap&&(e.thicknessMap.value=t.thicknessMap,n(t.thicknessMap,e.thicknessMapTransform)),e.attenuationDistance.value=t.attenuationDistance,e.attenuationColor.value.copy(t.attenuationColor));t.anisotropy>0&&(e.anisotropyVector.value.set(t.anisotropy*Math.cos(t.anisotropyRotation),t.anisotropy*Math.sin(t.anisotropyRotation)),t.anisotropyMap&&(e.anisotropyMap.value=t.anisotropyMap,n(t.anisotropyMap,e.anisotropyMapTransform)));e.specularIntensity.value=t.specularIntensity,e.specularColor.value.copy(t.specularColor),t.specularColorMap&&(e.specularColorMap.value=t.specularColorMap,n(t.specularColorMap,e.specularColorMapTransform));t.specularIntensityMap&&(e.specularIntensityMap.value=t.specularIntensityMap,n(t.specularIntensityMap,e.specularIntensityMapTransform))}(e,r,o)):r.isMeshMatcapMaterial?(i(e,r),function(e,t){t.matcap&&(e.matcap.value=t.matcap)}(e,r)):r.isMeshDepthMaterial?i(e,r):r.isMeshDistanceMaterial?(i(e,r),function(e,n){const i=t.get(n).light;e.referencePosition.value.setFromMatrixPosition(i.matrixWorld),e.nearDistance.value=i.shadow.camera.near,e.farDistance.value=i.shadow.camera.far}(e,r)):r.isMeshNormalMaterial?i(e,r):r.isLineBasicMaterial?(function(e,t){e.diffuse.value.copy(t.color),e.opacity.value=t.opacity,t.map&&(e.map.value=t.map,n(t.map,e.mapTransform))}(e,r),r.isLineDashedMaterial&&function(e,t){e.dashSize.value=t.dashSize,e.totalSize.value=t.dashSize+t.gapSize,e.scale.value=t.scale}(e,r)):r.isPointsMaterial?function(e,t,i,r){e.diffuse.value.copy(t.color),e.opacity.value=t.opacity,e.size.value=t.size*i,e.scale.value=.5*r,t.map&&(e.map.value=t.map,n(t.map,e.uvTransform));t.alphaMap&&(e.alphaMap.value=t.alphaMap,n(t.alphaMap,e.alphaMapTransform));t.alphaTest>0&&(e.alphaTest.value=t.alphaTest)}(e,r,a,s):r.isSpriteMaterial?function(e,t){e.diffuse.value.copy(t.color),e.opacity.value=t.opacity,e.rotation.value=t.rotation,t.map&&(e.map.value=t.map,n(t.map,e.mapTransform));t.alphaMap&&(e.alphaMap.value=t.alphaMap,n(t.alphaMap,e.alphaMapTransform));t.alphaTest>0&&(e.alphaTest.value=t.alphaTest)}(e,r):r.isShadowMaterial?(e.color.value.copy(r.color),e.opacity.value=r.opacity):r.isShaderMaterial&&(r.uniformsNeedUpdate=!1)}}}function ns(e,t,n,i){let r={},a={},s=[];const o=n.isWebGL2?e.getParameter(e.MAX_UNIFORM_BUFFER_BINDINGS):0;function l(e,t,n){const i=e.value;if(void 0===n[t]){if("number"==typeof i)n[t]=i;else{const e=Array.isArray(i)?i:[i],r=[];for(let t=0;t0){r=n%i;0!==r&&i-r-s.boundary<0&&(n+=i-r,e.__offset=n)}n+=s.storage}r=n%i,r>0&&(n+=i-r);e.__size=n,e.__cache={}}(n),d=function(t){const n=function(){for(let e=0;e0),h=!!n.morphAttributes.position,d=!!n.morphAttributes.normal,p=!!n.morphAttributes.color;let f=g;i.toneMapped&&(null!==w&&!0!==w.isXRRenderTarget||(f=S.toneMapping));const m=n.morphAttributes.position||n.morphAttributes.normal||n.morphAttributes.color,_=void 0!==m?m.length:0,v=de.get(i),x=M.state.lights;if(!0===Q&&(!0===$||e!==C)){const t=e===C&&i.id===R;Se.setState(i,e,t)}let y=!1;i.version===v.__version?v.needsLights&&v.lightsStateVersion!==x.state.version||v.outputColorSpace!==o||r.isInstancedMesh&&!1===v.instancing?y=!0:r.isInstancedMesh||!0!==v.instancing?r.isSkinnedMesh&&!1===v.skinning?y=!0:r.isSkinnedMesh||!0!==v.skinning?r.isInstancedMesh&&!0===v.instancingColor&&null===r.instanceColor||r.isInstancedMesh&&!1===v.instancingColor&&null!==r.instanceColor||v.envMap!==l||!0===i.fog&&v.fog!==a?y=!0:void 0===v.numClippingPlanes||v.numClippingPlanes===Se.numPlanes&&v.numIntersection===Se.numIntersection?(v.vertexAlphas!==c||v.vertexTangents!==u||v.morphTargets!==h||v.morphNormals!==d||v.morphColors!==p||v.toneMapping!==f||!0===ce.isWebGL2&&v.morphTargetsCount!==_)&&(y=!0):y=!0:y=!0:y=!0:(y=!0,v.__version=i.version);let E=v.currentProgram;!0===y&&(E=$e(i,t,r));let T=!1,b=!1,A=!1;const L=E.getUniforms(),P=v.uniforms;ue.useProgram(E.program)&&(T=!0,b=!0,A=!0);i.id!==R&&(R=i.id,b=!0);if(T||C!==e){L.setValue(Ne,"projectionMatrix",e.projectionMatrix),L.setValue(Ne,"viewMatrix",e.matrixWorldInverse);const t=L.map.cameraPosition;void 0!==t&&t.setValue(Ne,ie.setFromMatrixPosition(e.matrixWorld)),ce.logarithmicDepthBuffer&&L.setValue(Ne,"logDepthBufFC",2/(Math.log(e.far+1)/Math.LN2)),(i.isMeshPhongMaterial||i.isMeshToonMaterial||i.isMeshLambertMaterial||i.isMeshBasicMaterial||i.isMeshStandardMaterial||i.isShaderMaterial)&&L.setValue(Ne,"isOrthographic",!0===e.isOrthographicCamera),C!==e&&(C=e,b=!0,A=!0)}if(r.isSkinnedMesh){L.setOptional(Ne,r,"bindMatrix"),L.setOptional(Ne,r,"bindMatrixInverse");const e=r.skeleton;e&&(ce.floatVertexTextures?(null===e.boneTexture&&e.computeBoneTexture(),L.setValue(Ne,"boneTexture",e.boneTexture,pe),L.setValue(Ne,"boneTextureSize",e.boneTextureSize)):console.warn("THREE.WebGLRenderer: SkinnedMesh can only be used with WebGL 2. With WebGL 1 OES_texture_float and vertex textures support is required."))}const U=n.morphAttributes;(void 0!==U.position||void 0!==U.normal||void 0!==U.color&&!0===ce.isWebGL2)&&we.update(r,n,E);(b||v.receiveShadow!==r.receiveShadow)&&(v.receiveShadow=r.receiveShadow,L.setValue(Ne,"receiveShadow",r.receiveShadow));i.isMeshGouraudMaterial&&null!==i.envMap&&(P.envMap.value=l,P.flipEnvMap.value=l.isCubeTexture&&!1===l.isRenderTargetTexture?-1:1);b&&(L.setValue(Ne,"toneMappingExposure",S.toneMappingExposure),v.needsLights&&(I=A,(D=P).ambientLightColor.needsUpdate=I,D.lightProbe.needsUpdate=I,D.directionalLights.needsUpdate=I,D.directionalLightShadows.needsUpdate=I,D.pointLights.needsUpdate=I,D.pointLightShadows.needsUpdate=I,D.spotLights.needsUpdate=I,D.spotLightShadows.needsUpdate=I,D.rectAreaLights.needsUpdate=I,D.hemisphereLights.needsUpdate=I),a&&!0===i.fog&&Me.refreshFogUniforms(P,a),Me.refreshMaterialUniforms(P,i,X,W,ee),ua.upload(Ne,v.uniformsList,P,pe));var D,I;i.isShaderMaterial&&!0===i.uniformsNeedUpdate&&(ua.upload(Ne,v.uniformsList,P,pe),i.uniformsNeedUpdate=!1);i.isSpriteMaterial&&L.setValue(Ne,"center",r.center);if(L.setValue(Ne,"modelViewMatrix",r.modelViewMatrix),L.setValue(Ne,"normalMatrix",r.normalMatrix),L.setValue(Ne,"modelMatrix",r.matrixWorld),i.isShaderMaterial||i.isRawShaderMaterial){const e=i.uniformsGroups;for(let t=0,n=e.length;t0&&function(e,t,n,i){const r=ce.isWebGL2;null===ee&&(ee=new Qe(1,1,{generateMipmaps:!0,type:le.has("EXT_color_buffer_half_float")?H:N,minFilter:I,samples:r?4:0}));S.getDrawingBufferSize(ne),r?ee.setSize(ne.x,ne.y):ee.setSize(Te(ne.x),Te(ne.y));const a=S.getRenderTarget();S.setRenderTarget(ee),S.getClearColor(D),F=S.getClearAlpha(),F<1&&S.setClearColor(16777215,.5);S.clear();const s=S.toneMapping;S.toneMapping=g,Ke(e,n,i),pe.updateMultisampleRenderTarget(ee),pe.updateRenderTargetMipmap(ee);let o=!1;for(let l=0,c=t.length;l0&&Ke(r,t,n),a.length>0&&Ke(a,t,n),s.length>0&&Ke(s,t,n),ue.buffers.depth.setTest(!0),ue.buffers.depth.setMask(!0),ue.buffers.color.setMask(!0),ue.setPolygonOffset(!1)}function Ke(e,t,n){const i=!0===t.isScene?t.overrideMaterial:null;for(let r=0,a=e.length;r0?E[E.length-1]:null,y.pop(),x=y.length>0?y[y.length-1]:null},this.getActiveCubeFace=function(){return b},this.getActiveMipmapLevel=function(){return A},this.getRenderTarget=function(){return w},this.setRenderTargetTextures=function(e,t,n){de.get(e.texture).__webglTexture=t,de.get(e.depthTexture).__webglTexture=n;const i=de.get(e);i.__hasExternalTextures=!0,i.__hasExternalTextures&&(i.__autoAllocateDepthBuffer=void 0===n,i.__autoAllocateDepthBuffer||!0===le.has("WEBGL_multisampled_render_to_texture")&&(console.warn("THREE.WebGLRenderer: Render-to-texture extension was disabled because an external texture was provided"),i.__useRenderToTexture=!1))},this.setRenderTargetFramebuffer=function(e,t){const n=de.get(e);n.__webglFramebuffer=t,n.__useDefaultFramebuffer=void 0===t},this.setRenderTarget=function(e,t=0,n=0){w=e,b=t,A=n;let i=!0,r=null,a=!1,s=!1;if(e){const o=de.get(e);void 0!==o.__useDefaultFramebuffer?(ue.bindFramebuffer(Ne.FRAMEBUFFER,null),i=!1):void 0===o.__webglFramebuffer?pe.setupRenderTarget(e):o.__hasExternalTextures&&pe.rebindTextures(e,de.get(e.texture).__webglTexture,de.get(e.depthTexture).__webglTexture);const l=e.texture;(l.isData3DTexture||l.isDataArrayTexture||l.isCompressedArrayTexture)&&(s=!0);const c=de.get(e).__webglFramebuffer;e.isWebGLCubeRenderTarget?(r=Array.isArray(c[t])?c[t][n]:c[t],a=!0):r=ce.isWebGL2&&e.samples>0&&!1===pe.useMultisampledRTT(e)?de.get(e).__webglMultisampledFramebuffer:Array.isArray(c)?c[n]:c,L.copy(e.viewport),P.copy(e.scissor),U=e.scissorTest}else L.copy(Y).multiplyScalar(X).floor(),P.copy(K).multiplyScalar(X).floor(),U=Z;if(ue.bindFramebuffer(Ne.FRAMEBUFFER,r)&&ce.drawBuffers&&i&&ue.drawBuffers(e,r),ue.viewport(L),ue.scissor(P),ue.setScissorTest(U),a){const i=de.get(e.texture);Ne.framebufferTexture2D(Ne.FRAMEBUFFER,Ne.COLOR_ATTACHMENT0,Ne.TEXTURE_CUBE_MAP_POSITIVE_X+t,i.__webglTexture,n)}else if(s){const i=de.get(e.texture),r=t||0;Ne.framebufferTextureLayer(Ne.FRAMEBUFFER,Ne.COLOR_ATTACHMENT0,i.__webglTexture,n||0,r)}R=-1},this.readRenderTargetPixels=function(e,t,n,i,r,a,s){if(!e||!e.isWebGLRenderTarget)return void console.error("THREE.WebGLRenderer.readRenderTargetPixels: renderTarget is not THREE.WebGLRenderTarget.");let o=de.get(e).__webglFramebuffer;if(e.isWebGLCubeRenderTarget&&void 0!==s&&(o=o[s]),o){ue.bindFramebuffer(Ne.FRAMEBUFFER,o);try{const s=e.texture,o=s.format,l=s.type;if(o!==G&&Pe.convert(o)!==Ne.getParameter(Ne.IMPLEMENTATION_COLOR_READ_FORMAT))return void console.error("THREE.WebGLRenderer.readRenderTargetPixels: renderTarget is not in RGBA or implementation defined format.");const c=l===H&&(le.has("EXT_color_buffer_half_float")||ce.isWebGL2&&le.has("EXT_color_buffer_float"));if(!(l===N||Pe.convert(l)===Ne.getParameter(Ne.IMPLEMENTATION_COLOR_READ_TYPE)||l===z&&(ce.isWebGL2||le.has("OES_texture_float")||le.has("WEBGL_color_buffer_float"))||c))return void console.error("THREE.WebGLRenderer.readRenderTargetPixels: renderTarget is not in UnsignedByteType or implementation defined type.");t>=0&&t<=e.width-i&&n>=0&&n<=e.height-r&&Ne.readPixels(t,n,i,r,Pe.convert(o),Pe.convert(l),a)}finally{const e=null!==w?de.get(w).__webglFramebuffer:null;ue.bindFramebuffer(Ne.FRAMEBUFFER,e)}}},this.copyFramebufferToTexture=function(e,t,n=0){const i=Math.pow(2,-n),r=Math.floor(t.image.width*i),a=Math.floor(t.image.height*i);pe.setTexture2D(t,0),Ne.copyTexSubImage2D(Ne.TEXTURE_2D,n,0,0,e.x,e.y,r,a),ue.unbindTexture()},this.copyTextureToTexture=function(e,t,n,i=0){const r=t.image.width,a=t.image.height,s=Pe.convert(n.format),o=Pe.convert(n.type);pe.setTexture2D(n,0),Ne.pixelStorei(Ne.UNPACK_FLIP_Y_WEBGL,n.flipY),Ne.pixelStorei(Ne.UNPACK_PREMULTIPLY_ALPHA_WEBGL,n.premultiplyAlpha),Ne.pixelStorei(Ne.UNPACK_ALIGNMENT,n.unpackAlignment),t.isDataTexture?Ne.texSubImage2D(Ne.TEXTURE_2D,i,e.x,e.y,r,a,s,o,t.image.data):t.isCompressedTexture?Ne.compressedTexSubImage2D(Ne.TEXTURE_2D,i,e.x,e.y,t.mipmaps[0].width,t.mipmaps[0].height,s,t.mipmaps[0].data):Ne.texSubImage2D(Ne.TEXTURE_2D,i,e.x,e.y,s,o,t.image),0===i&&n.generateMipmaps&&Ne.generateMipmap(Ne.TEXTURE_2D),ue.unbindTexture()},this.copyTextureToTexture3D=function(e,t,n,i,r=0){if(S.isWebGL1Renderer)return void console.warn("THREE.WebGLRenderer.copyTextureToTexture3D: can only be used with WebGL2.");const a=e.max.x-e.min.x+1,s=e.max.y-e.min.y+1,o=e.max.z-e.min.z+1,l=Pe.convert(i.format),c=Pe.convert(i.type);let u;if(i.isData3DTexture)pe.setTexture3D(i,0),u=Ne.TEXTURE_3D;else{if(!i.isDataArrayTexture)return void console.warn("THREE.WebGLRenderer.copyTextureToTexture3D: only supports THREE.DataTexture3D and THREE.DataTexture2DArray.");pe.setTexture2DArray(i,0),u=Ne.TEXTURE_2D_ARRAY}Ne.pixelStorei(Ne.UNPACK_FLIP_Y_WEBGL,i.flipY),Ne.pixelStorei(Ne.UNPACK_PREMULTIPLY_ALPHA_WEBGL,i.premultiplyAlpha),Ne.pixelStorei(Ne.UNPACK_ALIGNMENT,i.unpackAlignment);const h=Ne.getParameter(Ne.UNPACK_ROW_LENGTH),d=Ne.getParameter(Ne.UNPACK_IMAGE_HEIGHT),p=Ne.getParameter(Ne.UNPACK_SKIP_PIXELS),f=Ne.getParameter(Ne.UNPACK_SKIP_ROWS),m=Ne.getParameter(Ne.UNPACK_SKIP_IMAGES),g=n.isCompressedTexture?n.mipmaps[0]:n.image;Ne.pixelStorei(Ne.UNPACK_ROW_LENGTH,g.width),Ne.pixelStorei(Ne.UNPACK_IMAGE_HEIGHT,g.height),Ne.pixelStorei(Ne.UNPACK_SKIP_PIXELS,e.min.x),Ne.pixelStorei(Ne.UNPACK_SKIP_ROWS,e.min.y),Ne.pixelStorei(Ne.UNPACK_SKIP_IMAGES,e.min.z),n.isDataTexture||n.isData3DTexture?Ne.texSubImage3D(u,r,t.x,t.y,t.z,a,s,o,l,c,g.data):n.isCompressedArrayTexture?(console.warn("THREE.WebGLRenderer.copyTextureToTexture3D: untested support for compressed srcTexture."),Ne.compressedTexSubImage3D(u,r,t.x,t.y,t.z,a,s,o,l,g.data)):Ne.texSubImage3D(u,r,t.x,t.y,t.z,a,s,o,l,c,g),Ne.pixelStorei(Ne.UNPACK_ROW_LENGTH,h),Ne.pixelStorei(Ne.UNPACK_IMAGE_HEIGHT,d),Ne.pixelStorei(Ne.UNPACK_SKIP_PIXELS,p),Ne.pixelStorei(Ne.UNPACK_SKIP_ROWS,f),Ne.pixelStorei(Ne.UNPACK_SKIP_IMAGES,m),0===r&&i.generateMipmaps&&Ne.generateMipmap(u),ue.unbindTexture()},this.initTexture=function(e){e.isCubeTexture?pe.setTextureCube(e,0):e.isData3DTexture?pe.setTexture3D(e,0):e.isDataArrayTexture||e.isCompressedArrayTexture?pe.setTexture2DArray(e,0):pe.setTexture2D(e,0),ue.unbindTexture()},this.resetState=function(){b=0,A=0,w=null,ue.reset(),Ue.reset()},"undefined"!=typeof __THREE_DEVTOOLS__&&__THREE_DEVTOOLS__.dispatchEvent(new CustomEvent("observe",{detail:this}))}get coordinateSystem(){return he}get physicallyCorrectLights(){return console.warn("THREE.WebGLRenderer: The property .physicallyCorrectLights has been removed. Set renderer.useLegacyLights instead."),!this.useLegacyLights}set physicallyCorrectLights(e){console.warn("THREE.WebGLRenderer: The property .physicallyCorrectLights has been removed. Set renderer.useLegacyLights instead."),this.useLegacyLights=!e}get outputEncoding(){return console.warn("THREE.WebGLRenderer: Property .outputEncoding has been removed. Use .outputColorSpace instead."),this.outputColorSpace===re?ne:3e3}set outputEncoding(e){console.warn("THREE.WebGLRenderer: Property .outputEncoding has been removed. Use .outputColorSpace instead."),this.outputColorSpace=e===ne?re:ae}get useLegacyLights(){return console.warn("THREE.WebGLRenderer: The property .useLegacyLights has been deprecated. Migrate your lighting according to the following guide: https://discourse.threejs.org/t/updates-to-lighting-in-three-js-r155/53733."),this._useLegacyLights}set useLegacyLights(e){console.warn("THREE.WebGLRenderer: The property .useLegacyLights has been deprecated. Migrate your lighting according to the following guide: https://discourse.threejs.org/t/updates-to-lighting-in-three-js-r155/53733."),this._useLegacyLights=e}}(class extends is{}).prototype.isWebGL1Renderer=!0;class rs extends rn{constructor(){super(),this.isScene=!0,this.type="Scene",this.background=null,this.environment=null,this.fog=null,this.backgroundBlurriness=0,this.backgroundIntensity=1,this.overrideMaterial=null,"undefined"!=typeof __THREE_DEVTOOLS__&&__THREE_DEVTOOLS__.dispatchEvent(new CustomEvent("observe",{detail:this}))}copy(e,t){return super.copy(e,t),null!==e.background&&(this.background=e.background.clone()),null!==e.environment&&(this.environment=e.environment.clone()),null!==e.fog&&(this.fog=e.fog.clone()),this.backgroundBlurriness=e.backgroundBlurriness,this.backgroundIntensity=e.backgroundIntensity,null!==e.overrideMaterial&&(this.overrideMaterial=e.overrideMaterial.clone()),this.matrixAutoUpdate=e.matrixAutoUpdate,this}toJSON(e){const t=super.toJSON(e);return null!==this.fog&&(t.object.fog=this.fog.toJSON()),this.backgroundBlurriness>0&&(t.object.backgroundBlurriness=this.backgroundBlurriness),1!==this.backgroundIntensity&&(t.object.backgroundIntensity=this.backgroundIntensity),t}}class as extends Ke{constructor(e=null,t=1,n=1,i,r,a,s,o,l=1003,c=1003,u,h){super(null,a,s,o,l,c,i,r,u,h),this.isDataTexture=!0,this.image={data:e,width:t,height:n},this.generateMipmaps=!1,this.flipY=!1,this.unpackAlignment=1}}class ss extends Rn{constructor(e,t,n,i=1){super(e,t,n),this.isInstancedBufferAttribute=!0,this.meshPerAttribute=i}copy(e){return super.copy(e),this.meshPerAttribute=e.meshPerAttribute,this}toJSON(){const e=super.toJSON();return e.meshPerAttribute=this.meshPerAttribute,e.isInstancedBufferAttribute=!0,e}}const os=new Ut,ls=new Ut,cs=[],us=new at,hs=new Ut,ds=new ii,ps=new St;class fs extends ii{constructor(e,t,n){super(e,t),this.isInstancedMesh=!0,this.instanceMatrix=new ss(new Float32Array(16*n),16),this.instanceColor=null,this.count=n,this.boundingBox=null,this.boundingSphere=null;for(let i=0;i0)){l=i;break}l=i-1}if(i=l,n[i]===a)return i/(r-1);const c=n[i];return(i+(a-c)/(n[i+1]-c))/(r-1)}getTangent(e,t){const n=1e-4;let i=e-n,r=e+n;i<0&&(i=0),r>1&&(r=1);const a=this.getPoint(i),s=this.getPoint(r),o=t||(a.isVector2?new Re:new nt);return o.copy(s).sub(a).normalize(),o}getTangentAt(e,t){const n=this.getUtoTmapping(e);return this.getTangent(n,t)}computeFrenetFrames(e,t){const n=new nt,i=[],r=[],a=[],s=new nt,o=new Ut;for(let d=0;d<=e;d++){const t=d/e;i[d]=this.getTangentAt(t,new nt)}r[0]=new nt,a[0]=new nt;let l=Number.MAX_VALUE;const c=Math.abs(i[0].x),u=Math.abs(i[0].y),h=Math.abs(i[0].z);c<=l&&(l=c,n.set(1,0,0)),u<=l&&(l=u,n.set(0,1,0)),h<=l&&n.set(0,0,1),s.crossVectors(i[0],n).normalize(),r[0].crossVectors(i[0],s),a[0].crossVectors(i[0],r[0]);for(let d=1;d<=e;d++){if(r[d]=r[d-1].clone(),a[d]=a[d-1].clone(),s.crossVectors(i[d-1],i[d]),s.length()>Number.EPSILON){s.normalize();const e=Math.acos(xe(i[d-1].dot(i[d]),-1,1));r[d].applyMatrix4(o.makeRotationAxis(s,e))}a[d].crossVectors(i[d],r[d])}if(!0===t){let t=Math.acos(xe(r[0].dot(r[e]),-1,1));t/=e,i[0].dot(s.crossVectors(r[0],r[e]))>0&&(t=-t);for(let n=1;n<=e;n++)r[n].applyMatrix4(o.makeRotationAxis(i[n],t*n)),a[n].crossVectors(i[n],r[n])}return{tangents:i,normals:r,binormals:a}}clone(){return(new this.constructor).copy(this)}copy(e){return this.arcLengthDivisions=e.arcLengthDivisions,this}toJSON(){const e={metadata:{version:4.6,type:"Curve",generator:"Curve.toJSON"}};return e.arcLengthDivisions=this.arcLengthDivisions,e.type=this.type,e}fromJSON(e){return this.arcLengthDivisions=e.arcLengthDivisions,this}}function gs(e,t,n,i,r){return function(e,t){const n=1-e;return n*n*n*t}(e,t)+function(e,t){const n=1-e;return 3*n*n*e*t}(e,n)+function(e,t){return 3*(1-e)*e*e*t}(e,i)+function(e,t){return e*e*e*t}(e,r)}class _s extends ms{constructor(e=new Re,t=new Re,n=new Re,i=new Re){super(),this.isCubicBezierCurve=!0,this.type="CubicBezierCurve",this.v0=e,this.v1=t,this.v2=n,this.v3=i}getPoint(e,t=new Re){const n=t,i=this.v0,r=this.v1,a=this.v2,s=this.v3;return n.set(gs(e,i.x,r.x,a.x,s.x),gs(e,i.y,r.y,a.y,s.y)),n}copy(e){return super.copy(e),this.v0.copy(e.v0),this.v1.copy(e.v1),this.v2.copy(e.v2),this.v3.copy(e.v3),this}toJSON(){const e=super.toJSON();return e.v0=this.v0.toArray(),e.v1=this.v1.toArray(),e.v2=this.v2.toArray(),e.v3=this.v3.toArray(),e}fromJSON(e){return super.fromJSON(e),this.v0.fromArray(e.v0),this.v1.fromArray(e.v1),this.v2.fromArray(e.v2),this.v3.fromArray(e.v3),this}}class vs extends ui{constructor(e){super(e),this.isRawShaderMaterial=!0,this.type="RawShaderMaterial"}}function xs(e,t,n){return ys(e)?new e.constructor(e.subarray(t,void 0!==n?n:e.length)):e.slice(t,n)}function 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e.x===this.x&&e.y===this.y}fromArray(e,t=0){return this.x=e[t],this.y=e[t+1],this}toArray(e=[],t=0){return e[t]=this.x,e[t+1]=this.y,e}fromBufferAttribute(e,t){return this.x=e.getX(t),this.y=e.getY(t),this}rotateAround(e,t){const n=Math.cos(t),i=Math.sin(t),r=this.x-e.x,a=this.y-e.y;return this.x=r*n-a*i+e.x,this.y=r*i+a*n+e.y,this}random(){return this.x=Math.random(),this.y=Math.random(),this}*[Symbol.iterator](){yield this.x,yield this.y}}class Ce{constructor(e,t,n,i,r,a,s,o,l){Ce.prototype.isMatrix3=!0,this.elements=[1,0,0,0,1,0,0,0,1],void 0!==e&&this.set(e,t,n,i,r,a,s,o,l)}set(e,t,n,i,r,a,s,o,l){const c=this.elements;return c[0]=e,c[1]=i,c[2]=s,c[3]=t,c[4]=r,c[5]=o,c[6]=n,c[7]=a,c[8]=l,this}identity(){return this.set(1,0,0,0,1,0,0,0,1),this}copy(e){const t=this.elements,n=e.elements;return t[0]=n[0],t[1]=n[1],t[2]=n[2],t[3]=n[3],t[4]=n[4],t[5]=n[5],t[6]=n[6],t[7]=n[7],t[8]=n[8],this}extractBasis(e,t,n){return e.setFromMatrix3Column(this,0),t.setFromMatrix3Column(this,1),n.setFromMatrix3Column(this,2),this}setFromMatrix4(e){const t=e.elements;return this.set(t[0],t[4],t[8],t[1],t[5],t[9],t[2],t[6],t[10]),this}multiply(e){return this.multiplyMatrices(this,e)}premultiply(e){return this.multiplyMatrices(e,this)}multiplyMatrices(e,t){const n=e.elements,i=t.elements,r=this.elements,a=n[0],s=n[3],o=n[6],l=n[1],c=n[4],u=n[7],h=n[2],d=n[5],p=n[8],f=i[0],m=i[3],g=i[6],_=i[1],v=i[4],x=i[7],M=i[2],y=i[5],E=i[8];return r[0]=a*f+s*_+o*M,r[3]=a*m+s*v+o*y,r[6]=a*g+s*x+o*E,r[1]=l*f+c*_+u*M,r[4]=l*m+c*v+u*y,r[7]=l*g+c*x+u*E,r[2]=h*f+d*_+p*M,r[5]=h*m+d*v+p*y,r[8]=h*g+d*x+p*E,this}multiplyScalar(e){const t=this.elements;return t[0]*=e,t[3]*=e,t[6]*=e,t[1]*=e,t[4]*=e,t[7]*=e,t[2]*=e,t[5]*=e,t[8]*=e,this}determinant(){const e=this.elements,t=e[0],n=e[1],i=e[2],r=e[3],a=e[4],s=e[5],o=e[6],l=e[7],c=e[8];return t*a*c-t*s*l-n*r*c+n*s*o+i*r*l-i*a*o}invert(){const e=this.elements,t=e[0],n=e[1],i=e[2],r=e[3],a=e[4],s=e[5],o=e[6],l=e[7],c=e[8],u=c*a-s*l,h=s*o-c*r,d=l*r-a*o,p=t*u+n*h+i*d;if(0===p)return this.set(0,0,0,0,0,0,0,0,0);const f=1/p;return e[0]=u*f,e[1]=(i*l-c*n)*f,e[2]=(s*n-i*a)*f,e[3]=h*f,e[4]=(c*t-i*o)*f,e[5]=(i*r-s*t)*f,e[6]=d*f,e[7]=(n*o-l*t)*f,e[8]=(a*t-n*r)*f,this}transpose(){let e;const t=this.elements;return e=t[1],t[1]=t[3],t[3]=e,e=t[2],t[2]=t[6],t[6]=e,e=t[5],t[5]=t[7],t[7]=e,this}getNormalMatrix(e){return this.setFromMatrix4(e).invert().transpose()}transposeIntoArray(e){const t=this.elements;return e[0]=t[0],e[1]=t[3],e[2]=t[6],e[3]=t[1],e[4]=t[4],e[5]=t[7],e[6]=t[2],e[7]=t[5],e[8]=t[8],this}setUvTransform(e,t,n,i,r,a,s){const o=Math.cos(r),l=Math.sin(r);return this.set(n*o,n*l,-n*(o*a+l*s)+a+e,-i*l,i*o,-i*(-l*a+o*s)+s+t,0,0,1),this}scale(e,t){return this.premultiply(Le.makeScale(e,t)),this}rotate(e){return this.premultiply(Le.makeRotation(-e)),this}translate(e,t){return 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workingColorSpace(){return ae},set workingColorSpace(e){console.warn("THREE.ColorManagement: .workingColorSpace is readonly.")},convert:function(e,t,n){if(!1===this.enabled||t===n||!t||!n)return e;const i=He[t],r=Ve[n];if(void 0===i||void 0===r)throw new Error(`Unsupported color space conversion, "${t}" to "${n}".`);return r(i(e))},fromWorkingColorSpace:function(e,t){return this.convert(e,this.workingColorSpace,t)},toWorkingColorSpace:function(e,t){return this.convert(e,t,this.workingColorSpace)}};let ke;class We{static getDataURL(e){if(/^data:/i.test(e.src))return e.src;if("undefined"==typeof HTMLCanvasElement)return e.src;let t;if(e instanceof HTMLCanvasElement)t=e;else{void 0===ke&&(ke=Ue("canvas")),ke.width=e.width,ke.height=e.height;const n=ke.getContext("2d");e instanceof ImageData?n.putImageData(e,0,0):n.drawImage(e,0,0,e.width,e.height),t=ke}return t.width>2048||t.height>2048?(console.warn("THREE.ImageUtils.getDataURL: Image converted to jpg for performance 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C:1===Math.abs(Math.floor(e.y)%2)?e.y=Math.ceil(e.y)-e.y:e.y=e.y-Math.floor(e.y)}return this.flipY&&(e.y=1-e.y),e}set needsUpdate(e){!0===e&&(this.version++,this.source.needsUpdate=!0)}get encoding(){return Ne("THREE.Texture: Property .encoding has been replaced by .colorSpace."),this.colorSpace===re?ne:3e3}set encoding(e){Ne("THREE.Texture: Property .encoding has been replaced by .colorSpace."),this.colorSpace=e===ne?re:ie}}Ke.DEFAULT_IMAGE=null,Ke.DEFAULT_MAPPING=300,Ke.DEFAULT_ANISOTROPY=1;class Ze{constructor(e=0,t=0,n=0,i=1){Ze.prototype.isVector4=!0,this.x=e,this.y=t,this.z=n,this.w=i}get width(){return this.z}set width(e){this.z=e}get height(){return this.w}set height(e){this.w=e}set(e,t,n,i){return this.x=e,this.y=t,this.z=n,this.w=i,this}setScalar(e){return this.x=e,this.y=e,this.z=e,this.w=e,this}setX(e){return this.x=e,this}setY(e){return this.y=e,this}setZ(e){return this.z=e,this}setW(e){return this.w=e,this}setComponent(e,t){switch(e){case 0:this.x=t;break;case 1:this.y=t;break;case 2:this.z=t;break;case 3:this.w=t;break;default:throw new Error("index is out of range: "+e)}return this}getComponent(e){switch(e){case 0:return this.x;case 1:return this.y;case 2:return this.z;case 3:return this.w;default:throw new Error("index is out of range: "+e)}}clone(){return new this.constructor(this.x,this.y,this.z,this.w)}copy(e){return this.x=e.x,this.y=e.y,this.z=e.z,this.w=void 0!==e.w?e.w:1,this}add(e){return this.x+=e.x,this.y+=e.y,this.z+=e.z,this.w+=e.w,this}addScalar(e){return this.x+=e,this.y+=e,this.z+=e,this.w+=e,this}addVectors(e,t){return this.x=e.x+t.x,this.y=e.y+t.y,this.z=e.z+t.z,this.w=e.w+t.w,this}addScaledVector(e,t){return this.x+=e.x*t,this.y+=e.y*t,this.z+=e.z*t,this.w+=e.w*t,this}sub(e){return this.x-=e.x,this.y-=e.y,this.z-=e.z,this.w-=e.w,this}subScalar(e){return this.x-=e,this.y-=e,this.z-=e,this.w-=e,this}subVectors(e,t){return this.x=e.x-t.x,this.y=e.y-t.y,this.z=e.z-t.z,this.w=e.w-t.w,this}multiply(e){return this.x*=e.x,this.y*=e.y,this.z*=e.z,this.w*=e.w,this}multiplyScalar(e){return this.x*=e,this.y*=e,this.z*=e,this.w*=e,this}applyMatrix4(e){const t=this.x,n=this.y,i=this.z,r=this.w,a=e.elements;return this.x=a[0]*t+a[4]*n+a[8]*i+a[12]*r,this.y=a[1]*t+a[5]*n+a[9]*i+a[13]*r,this.z=a[2]*t+a[6]*n+a[10]*i+a[14]*r,this.w=a[3]*t+a[7]*n+a[11]*i+a[15]*r,this}divideScalar(e){return this.multiplyScalar(1/e)}setAxisAngleFromQuaternion(e){this.w=2*Math.acos(e.w);const t=Math.sqrt(1-e.w*e.w);return t<1e-4?(this.x=1,this.y=0,this.z=0):(this.x=e.x/t,this.y=e.y/t,this.z=e.z/t),this}setAxisAngleFromRotationMatrix(e){let t,n,i,r;const a=.01,s=.1,o=e.elements,l=o[0],c=o[4],u=o[8],h=o[1],d=o[5],p=o[9],f=o[2],m=o[6],g=o[10];if(Math.abs(c-h)o&&e>_?e_?o=0?1:-1,i=1-t*t;if(i>Number.EPSILON){const r=Math.sqrt(i),a=Math.atan2(r,t*n);e=Math.sin(e*a)/r,s=Math.sin(s*a)/r}const r=s*n;if(o=o*e+h*r,l=l*e+d*r,c=c*e+p*r,u=u*e+f*r,e===1-s){const e=1/Math.sqrt(o*o+l*l+c*c+u*u);o*=e,l*=e,c*=e,u*=e}}e[t]=o,e[t+1]=l,e[t+2]=c,e[t+3]=u}static multiplyQuaternionsFlat(e,t,n,i,r,a){const s=n[i],o=n[i+1],l=n[i+2],c=n[i+3],u=r[a],h=r[a+1],d=r[a+2],p=r[a+3];return e[t]=s*p+c*u+o*d-l*h,e[t+1]=o*p+c*h+l*u-s*d,e[t+2]=l*p+c*d+s*h-o*u,e[t+3]=c*p-s*u-o*h-l*d,e}get x(){return this._x}set x(e){this._x=e,this._onChangeCallback()}get y(){return this._y}set y(e){this._y=e,this._onChangeCallback()}get z(){return this._z}set z(e){this._z=e,this._onChangeCallback()}get w(){return this._w}set w(e){this._w=e,this._onChangeCallback()}set(e,t,n,i){return this._x=e,this._y=t,this._z=n,this._w=i,this._onChangeCallback(),this}clone(){return new this.constructor(this._x,this._y,this._z,this._w)}copy(e){return this._x=e.x,this._y=e.y,this._z=e.z,this._w=e.w,this._onChangeCallback(),this}setFromEuler(e,t){const n=e._x,i=e._y,r=e._z,a=e._order,s=Math.cos,o=Math.sin,l=s(n/2),c=s(i/2),u=s(r/2),h=o(n/2),d=o(i/2),p=o(r/2);switch(a){case"XYZ":this._x=h*c*u+l*d*p,this._y=l*d*u-h*c*p,this._z=l*c*p+h*d*u,this._w=l*c*u-h*d*p;break;case"YXZ":this._x=h*c*u+l*d*p,this._y=l*d*u-h*c*p,this._z=l*c*p-h*d*u,this._w=l*c*u+h*d*p;break;case"ZXY":this._x=h*c*u-l*d*p,this._y=l*d*u+h*c*p,this._z=l*c*p+h*d*u,this._w=l*c*u-h*d*p;break;case"ZYX":this._x=h*c*u-l*d*p,this._y=l*d*u+h*c*p,this._z=l*c*p-h*d*u,this._w=l*c*u+h*d*p;break;case"YZX":this._x=h*c*u+l*d*p,this._y=l*d*u+h*c*p,this._z=l*c*p-h*d*u,this._w=l*c*u-h*d*p;break;case"XZY":this._x=h*c*u-l*d*p,this._y=l*d*u-h*c*p,this._z=l*c*p+h*d*u,this._w=l*c*u+h*d*p;break;default:console.warn("THREE.Quaternion: .setFromEuler() encountered an unknown order: "+a)}return!1!==t&&this._onChangeCallback(),this}setFromAxisAngle(e,t){const n=t/2,i=Math.sin(n);return this._x=e.x*i,this._y=e.y*i,this._z=e.z*i,this._w=Math.cos(n),this._onChangeCallback(),this}setFromRotationMatrix(e){const t=e.elements,n=t[0],i=t[4],r=t[8],a=t[1],s=t[5],o=t[9],l=t[2],c=t[6],u=t[10],h=n+s+u;if(h>0){const e=.5/Math.sqrt(h+1);this._w=.25/e,this._x=(c-o)*e,this._y=(r-l)*e,this._z=(a-i)*e}else if(n>s&&n>u){const e=2*Math.sqrt(1+n-s-u);this._w=(c-o)/e,this._x=.25*e,this._y=(i+a)/e,this._z=(r+l)/e}else if(s>u){const e=2*Math.sqrt(1+s-n-u);this._w=(r-l)/e,this._x=(i+a)/e,this._y=.25*e,this._z=(o+c)/e}else{const e=2*Math.sqrt(1+u-n-s);this._w=(a-i)/e,this._x=(r+l)/e,this._y=(o+c)/e,this._z=.25*e}return this._onChangeCallback(),this}setFromUnitVectors(e,t){let n=e.dot(t)+1;return nMath.abs(e.z)?(this._x=-e.y,this._y=e.x,this._z=0,this._w=n):(this._x=0,this._y=-e.z,this._z=e.y,this._w=n)):(this._x=e.y*t.z-e.z*t.y,this._y=e.z*t.x-e.x*t.z,this._z=e.x*t.y-e.y*t.x,this._w=n),this.normalize()}angleTo(e){return 2*Math.acos(Math.abs(xe(this.dot(e),-1,1)))}rotateTowards(e,t){const n=this.angleTo(e);if(0===n)return this;const i=Math.min(1,t/n);return this.slerp(e,i),this}identity(){return this.set(0,0,0,1)}invert(){return this.conjugate()}conjugate(){return this._x*=-1,this._y*=-1,this._z*=-1,this._onChangeCallback(),this}dot(e){return this._x*e._x+this._y*e._y+this._z*e._z+this._w*e._w}lengthSq(){return this._x*this._x+this._y*this._y+this._z*this._z+this._w*this._w}length(){return Math.sqrt(this._x*this._x+this._y*this._y+this._z*this._z+this._w*this._w)}normalize(){let e=this.length();return 0===e?(this._x=0,this._y=0,this._z=0,this._w=1):(e=1/e,this._x=this._x*e,this._y=this._y*e,this._z=this._z*e,this._w=this._w*e),this._onChangeCallback(),this}multiply(e){return this.multiplyQuaternions(this,e)}premultiply(e){return this.multiplyQuaternions(e,this)}multiplyQuaternions(e,t){const n=e._x,i=e._y,r=e._z,a=e._w,s=t._x,o=t._y,l=t._z,c=t._w;return this._x=n*c+a*s+i*l-r*o,this._y=i*c+a*o+r*s-n*l,this._z=r*c+a*l+n*o-i*s,this._w=a*c-n*s-i*o-r*l,this._onChangeCallback(),this}slerp(e,t){if(0===t)return this;if(1===t)return this.copy(e);const n=this._x,i=this._y,r=this._z,a=this._w;let s=a*e._w+n*e._x+i*e._y+r*e._z;if(s<0?(this._w=-e._w,this._x=-e._x,this._y=-e._y,this._z=-e._z,s=-s):this.copy(e),s>=1)return this._w=a,this._x=n,this._y=i,this._z=r,this;const o=1-s*s;if(o<=Number.EPSILON){const e=1-t;return this._w=e*a+t*this._w,this._x=e*n+t*this._x,this._y=e*i+t*this._y,this._z=e*r+t*this._z,this.normalize(),this._onChangeCallback(),this}const l=Math.sqrt(o),c=Math.atan2(l,s),u=Math.sin((1-t)*c)/l,h=Math.sin(t*c)/l;return this._w=a*u+this._w*h,this._x=n*u+this._x*h,this._y=i*u+this._y*h,this._z=r*u+this._z*h,this._onChangeCallback(),this}slerpQuaternions(e,t,n){return this.copy(e).slerp(t,n)}random(){const e=Math.random(),t=Math.sqrt(1-e),n=Math.sqrt(e),i=2*Math.PI*Math.random(),r=2*Math.PI*Math.random();return this.set(t*Math.cos(i),n*Math.sin(r),n*Math.cos(r),t*Math.sin(i))}equals(e){return e._x===this._x&&e._y===this._y&&e._z===this._z&&e._w===this._w}fromArray(e,t=0){return this._x=e[t],this._y=e[t+1],this._z=e[t+2],this._w=e[t+3],this._onChangeCallback(),this}toArray(e=[],t=0){return e[t]=this._x,e[t+1]=this._y,e[t+2]=this._z,e[t+3]=this._w,e}fromBufferAttribute(e,t){return this._x=e.getX(t),this._y=e.getY(t),this._z=e.getZ(t),this._w=e.getW(t),this}toJSON(){return this.toArray()}_onChange(e){return this._onChangeCallback=e,this}_onChangeCallback(){}*[Symbol.iterator](){yield this._x,yield this._y,yield this._z,yield this._w}}class nt{constructor(e=0,t=0,n=0){nt.prototype.isVector3=!0,this.x=e,this.y=t,this.z=n}set(e,t,n){return void 0===n&&(n=this.z),this.x=e,this.y=t,this.z=n,this}setScalar(e){return this.x=e,this.y=e,this.z=e,this}setX(e){return this.x=e,this}setY(e){return this.y=e,this}setZ(e){return this.z=e,this}setComponent(e,t){switch(e){case 0:this.x=t;break;case 1:this.y=t;break;case 2:this.z=t;break;default:throw new Error("index is out of range: "+e)}return this}getComponent(e){switch(e){case 0:return this.x;case 1:return this.y;case 2:return this.z;default:throw new Error("index is out of range: "+e)}}clone(){return new this.constructor(this.x,this.y,this.z)}copy(e){return this.x=e.x,this.y=e.y,this.z=e.z,this}add(e){return this.x+=e.x,this.y+=e.y,this.z+=e.z,this}addScalar(e){return this.x+=e,this.y+=e,this.z+=e,this}addVectors(e,t){return this.x=e.x+t.x,this.y=e.y+t.y,this.z=e.z+t.z,this}addScaledVector(e,t){return this.x+=e.x*t,this.y+=e.y*t,this.z+=e.z*t,this}sub(e){return this.x-=e.x,this.y-=e.y,this.z-=e.z,this}subScalar(e){return this.x-=e,this.y-=e,this.z-=e,this}subVectors(e,t){return this.x=e.x-t.x,this.y=e.y-t.y,this.z=e.z-t.z,this}multiply(e){return this.x*=e.x,this.y*=e.y,this.z*=e.z,this}multiplyScalar(e){return this.x*=e,this.y*=e,this.z*=e,this}multiplyVectors(e,t){return this.x=e.x*t.x,this.y=e.y*t.y,this.z=e.z*t.z,this}applyEuler(e){return this.applyQuaternion(rt.setFromEuler(e))}applyAxisAngle(e,t){return this.applyQuaternion(rt.setFromAxisAngle(e,t))}applyMatrix3(e){const t=this.x,n=this.y,i=this.z,r=e.elements;return this.x=r[0]*t+r[3]*n+r[6]*i,this.y=r[1]*t+r[4]*n+r[7]*i,this.z=r[2]*t+r[5]*n+r[8]*i,this}applyNormalMatrix(e){return this.applyMatrix3(e).normalize()}applyMatrix4(e){const t=this.x,n=this.y,i=this.z,r=e.elements,a=1/(r[3]*t+r[7]*n+r[11]*i+r[15]);return this.x=(r[0]*t+r[4]*n+r[8]*i+r[12])*a,this.y=(r[1]*t+r[5]*n+r[9]*i+r[13])*a,this.z=(r[2]*t+r[6]*n+r[10]*i+r[14])*a,this}applyQuaternion(e){const t=this.x,n=this.y,i=this.z,r=e.x,a=e.y,s=e.z,o=e.w,l=o*t+a*i-s*n,c=o*n+s*t-r*i,u=o*i+r*n-a*t,h=-r*t-a*n-s*i;return this.x=l*o+h*-r+c*-s-u*-a,this.y=c*o+h*-a+u*-r-l*-s,this.z=u*o+h*-s+l*-a-c*-r,this}project(e){return this.applyMatrix4(e.matrixWorldInverse).applyMatrix4(e.projectionMatrix)}unproject(e){return this.applyMatrix4(e.projectionMatrixInverse).applyMatrix4(e.matrixWorld)}transformDirection(e){const t=this.x,n=this.y,i=this.z,r=e.elements;return this.x=r[0]*t+r[4]*n+r[8]*i,this.y=r[1]*t+r[5]*n+r[9]*i,this.z=r[2]*t+r[6]*n+r[10]*i,this.normalize()}divide(e){return this.x/=e.x,this.y/=e.y,this.z/=e.z,this}divideScalar(e){return this.multiplyScalar(1/e)}min(e){return this.x=Math.min(this.x,e.x),this.y=Math.min(this.y,e.y),this.z=Math.min(this.z,e.z),this}max(e){return this.x=Math.max(this.x,e.x),this.y=Math.max(this.y,e.y),this.z=Math.max(this.z,e.z),this}clamp(e,t){return this.x=Math.max(e.x,Math.min(t.x,this.x)),this.y=Math.max(e.y,Math.min(t.y,this.y)),this.z=Math.max(e.z,Math.min(t.z,this.z)),this}clampScalar(e,t){return this.x=Math.max(e,Math.min(t,this.x)),this.y=Math.max(e,Math.min(t,this.y)),this.z=Math.max(e,Math.min(t,this.z)),this}clampLength(e,t){const n=this.length();return this.divideScalar(n||1).multiplyScalar(Math.max(e,Math.min(t,n)))}floor(){return this.x=Math.floor(this.x),this.y=Math.floor(this.y),this.z=Math.floor(this.z),this}ceil(){return this.x=Math.ceil(this.x),this.y=Math.ceil(this.y),this.z=Math.ceil(this.z),this}round(){return this.x=Math.round(this.x),this.y=Math.round(this.y),this.z=Math.round(this.z),this}roundToZero(){return this.x=Math.trunc(this.x),this.y=Math.trunc(this.y),this.z=Math.trunc(this.z),this}negate(){return this.x=-this.x,this.y=-this.y,this.z=-this.z,this}dot(e){return this.x*e.x+this.y*e.y+this.z*e.z}lengthSq(){return this.x*this.x+this.y*this.y+this.z*this.z}length(){return Math.sqrt(this.x*this.x+this.y*this.y+this.z*this.z)}manhattanLength(){return Math.abs(this.x)+Math.abs(this.y)+Math.abs(this.z)}normalize(){return this.divideScalar(this.length()||1)}setLength(e){return this.normalize().multiplyScalar(e)}lerp(e,t){return this.x+=(e.x-this.x)*t,this.y+=(e.y-this.y)*t,this.z+=(e.z-this.z)*t,this}lerpVectors(e,t,n){return this.x=e.x+(t.x-e.x)*n,this.y=e.y+(t.y-e.y)*n,this.z=e.z+(t.z-e.z)*n,this}cross(e){return this.crossVectors(this,e)}crossVectors(e,t){const n=e.x,i=e.y,r=e.z,a=t.x,s=t.y,o=t.z;return this.x=i*o-r*s,this.y=r*a-n*o,this.z=n*s-i*a,this}projectOnVector(e){const t=e.lengthSq();if(0===t)return this.set(0,0,0);const n=e.dot(this)/t;return this.copy(e).multiplyScalar(n)}projectOnPlane(e){return it.copy(this).projectOnVector(e),this.sub(it)}reflect(e){return this.sub(it.copy(e).multiplyScalar(2*this.dot(e)))}angleTo(e){const t=Math.sqrt(this.lengthSq()*e.lengthSq());if(0===t)return Math.PI/2;const n=this.dot(e)/t;return Math.acos(xe(n,-1,1))}distanceTo(e){return Math.sqrt(this.distanceToSquared(e))}distanceToSquared(e){const t=this.x-e.x,n=this.y-e.y,i=this.z-e.z;return t*t+n*n+i*i}manhattanDistanceTo(e){return Math.abs(this.x-e.x)+Math.abs(this.y-e.y)+Math.abs(this.z-e.z)}setFromSpherical(e){return this.setFromSphericalCoords(e.radius,e.phi,e.theta)}setFromSphericalCoords(e,t,n){const i=Math.sin(t)*e;return this.x=i*Math.sin(n),this.y=Math.cos(t)*e,this.z=i*Math.cos(n),this}setFromCylindrical(e){return this.setFromCylindricalCoords(e.radius,e.theta,e.y)}setFromCylindricalCoords(e,t,n){return this.x=e*Math.sin(t),this.y=n,this.z=e*Math.cos(t),this}setFromMatrixPosition(e){const t=e.elements;return this.x=t[12],this.y=t[13],this.z=t[14],this}setFromMatrixScale(e){const t=this.setFromMatrixColumn(e,0).length(),n=this.setFromMatrixColumn(e,1).length(),i=this.setFromMatrixColumn(e,2).length();return this.x=t,this.y=n,this.z=i,this}setFromMatrixColumn(e,t){return this.fromArray(e.elements,4*t)}setFromMatrix3Column(e,t){return this.fromArray(e.elements,3*t)}setFromEuler(e){return this.x=e._x,this.y=e._y,this.z=e._z,this}setFromColor(e){return this.x=e.r,this.y=e.g,this.z=e.b,this}equals(e){return e.x===this.x&&e.y===this.y&&e.z===this.z}fromArray(e,t=0){return this.x=e[t],this.y=e[t+1],this.z=e[t+2],this}toArray(e=[],t=0){return e[t]=this.x,e[t+1]=this.y,e[t+2]=this.z,e}fromBufferAttribute(e,t){return this.x=e.getX(t),this.y=e.getY(t),this.z=e.getZ(t),this}random(){return this.x=Math.random(),this.y=Math.random(),this.z=Math.random(),this}randomDirection(){const e=2*(Math.random()-.5),t=Math.random()*Math.PI*2,n=Math.sqrt(1-e**2);return this.x=n*Math.cos(t),this.y=n*Math.sin(t),this.z=e,this}*[Symbol.iterator](){yield this.x,yield this.y,yield this.z}}const it=new nt,rt=new tt;class at{constructor(e=new nt(1/0,1/0,1/0),t=new nt(-1/0,-1/0,-1/0)){this.isBox3=!0,this.min=e,this.max=t}set(e,t){return this.min.copy(e),this.max.copy(t),this}setFromArray(e){this.makeEmpty();for(let t=0,n=e.length;tthis.max.x||e.ythis.max.y||e.zthis.max.z)}containsBox(e){return this.min.x<=e.min.x&&e.max.x<=this.max.x&&this.min.y<=e.min.y&&e.max.y<=this.max.y&&this.min.z<=e.min.z&&e.max.z<=this.max.z}getParameter(e,t){return t.set((e.x-this.min.x)/(this.max.x-this.min.x),(e.y-this.min.y)/(this.max.y-this.min.y),(e.z-this.min.z)/(this.max.z-this.min.z))}intersectsBox(e){return!(e.max.xthis.max.x||e.max.ythis.max.y||e.max.zthis.max.z)}intersectsSphere(e){return this.clampPoint(e.center,ot),ot.distanceToSquared(e.center)<=e.radius*e.radius}intersectsPlane(e){let t,n;return e.normal.x>0?(t=e.normal.x*this.min.x,n=e.normal.x*this.max.x):(t=e.normal.x*this.max.x,n=e.normal.x*this.min.x),e.normal.y>0?(t+=e.normal.y*this.min.y,n+=e.normal.y*this.max.y):(t+=e.normal.y*this.max.y,n+=e.normal.y*this.min.y),e.normal.z>0?(t+=e.normal.z*this.min.z,n+=e.normal.z*this.max.z):(t+=e.normal.z*this.max.z,n+=e.normal.z*this.min.z),t<=-e.constant&&n>=-e.constant}intersectsTriangle(e){if(this.isEmpty())return!1;this.getCenter(mt),gt.subVectors(this.max,mt),ct.subVectors(e.a,mt),ut.subVectors(e.b,mt),ht.subVectors(e.c,mt),dt.subVectors(ut,ct),pt.subVectors(ht,ut),ft.subVectors(ct,ht);let t=[0,-dt.z,dt.y,0,-pt.z,pt.y,0,-ft.z,ft.y,dt.z,0,-dt.x,pt.z,0,-pt.x,ft.z,0,-ft.x,-dt.y,dt.x,0,-pt.y,pt.x,0,-ft.y,ft.x,0];return!!xt(t,ct,ut,ht,gt)&&(t=[1,0,0,0,1,0,0,0,1],!!xt(t,ct,ut,ht,gt)&&(_t.crossVectors(dt,pt),t=[_t.x,_t.y,_t.z],xt(t,ct,ut,ht,gt)))}clampPoint(e,t){return t.copy(e).clamp(this.min,this.max)}distanceToPoint(e){return this.clampPoint(e,ot).distanceTo(e)}getBoundingSphere(e){return this.isEmpty()?e.makeEmpty():(this.getCenter(e.center),e.radius=.5*this.getSize(ot).length()),e}intersect(e){return this.min.max(e.min),this.max.min(e.max),this.isEmpty()&&this.makeEmpty(),this}union(e){return this.min.min(e.min),this.max.max(e.max),this}applyMatrix4(e){return this.isEmpty()||(st[0].set(this.min.x,this.min.y,this.min.z).applyMatrix4(e),st[1].set(this.min.x,this.min.y,this.max.z).applyMatrix4(e),st[2].set(this.min.x,this.max.y,this.min.z).applyMatrix4(e),st[3].set(this.min.x,this.max.y,this.max.z).applyMatrix4(e),st[4].set(this.max.x,this.min.y,this.min.z).applyMatrix4(e),st[5].set(this.max.x,this.min.y,this.max.z).applyMatrix4(e),st[6].set(this.max.x,this.max.y,this.min.z).applyMatrix4(e),st[7].set(this.max.x,this.max.y,this.max.z).applyMatrix4(e),this.setFromPoints(st)),this}translate(e){return this.min.add(e),this.max.add(e),this}equals(e){return e.min.equals(this.min)&&e.max.equals(this.max)}}const st=[new nt,new nt,new nt,new nt,new nt,new nt,new nt,new nt],ot=new nt,lt=new at,ct=new nt,ut=new nt,ht=new nt,dt=new nt,pt=new nt,ft=new nt,mt=new nt,gt=new nt,_t=new nt,vt=new nt;function xt(e,t,n,i,r){for(let a=0,s=e.length-3;a<=s;a+=3){vt.fromArray(e,a);const s=r.x*Math.abs(vt.x)+r.y*Math.abs(vt.y)+r.z*Math.abs(vt.z),o=t.dot(vt),l=n.dot(vt),c=i.dot(vt);if(Math.max(-Math.max(o,l,c),Math.min(o,l,c))>s)return!1}return!0}const Mt=new at,yt=new nt,Et=new nt;class St{constructor(e=new nt,t=-1){this.center=e,this.radius=t}set(e,t){return this.center.copy(e),this.radius=t,this}setFromPoints(e,t){const n=this.center;void 0!==t?n.copy(t):Mt.setFromPoints(e).getCenter(n);let i=0;for(let r=0,a=e.length;rthis.radius*this.radius&&(t.sub(this.center).normalize(),t.multiplyScalar(this.radius).add(this.center)),t}getBoundingBox(e){return this.isEmpty()?(e.makeEmpty(),e):(e.set(this.center,this.center),e.expandByScalar(this.radius),e)}applyMatrix4(e){return this.center.applyMatrix4(e),this.radius=this.radius*e.getMaxScaleOnAxis(),this}translate(e){return this.center.add(e),this}expandByPoint(e){if(this.isEmpty())return this.center.copy(e),this.radius=0,this;yt.subVectors(e,this.center);const t=yt.lengthSq();if(t>this.radius*this.radius){const e=Math.sqrt(t),n=.5*(e-this.radius);this.center.addScaledVector(yt,n/e),this.radius+=n}return this}union(e){return e.isEmpty()?this:this.isEmpty()?(this.copy(e),this):(!0===this.center.equals(e.center)?this.radius=Math.max(this.radius,e.radius):(Et.subVectors(e.center,this.center).setLength(e.radius),this.expandByPoint(yt.copy(e.center).add(Et)),this.expandByPoint(yt.copy(e.center).sub(Et))),this)}equals(e){return e.center.equals(this.center)&&e.radius===this.radius}clone(){return(new this.constructor).copy(this)}}const Tt=new nt,bt=new nt,At=new nt,wt=new nt,Rt=new nt,Ct=new nt,Lt=new nt;class Pt{constructor(e=new nt,t=new nt(0,0,-1)){this.origin=e,this.direction=t}set(e,t){return this.origin.copy(e),this.direction.copy(t),this}copy(e){return this.origin.copy(e.origin),this.direction.copy(e.direction),this}at(e,t){return t.copy(this.origin).addScaledVector(this.direction,e)}lookAt(e){return this.direction.copy(e).sub(this.origin).normalize(),this}recast(e){return this.origin.copy(this.at(e,Tt)),this}closestPointToPoint(e,t){t.subVectors(e,this.origin);const n=t.dot(this.direction);return n<0?t.copy(this.origin):t.copy(this.origin).addScaledVector(this.direction,n)}distanceToPoint(e){return Math.sqrt(this.distanceSqToPoint(e))}distanceSqToPoint(e){const t=Tt.subVectors(e,this.origin).dot(this.direction);return t<0?this.origin.distanceToSquared(e):(Tt.copy(this.origin).addScaledVector(this.direction,t),Tt.distanceToSquared(e))}distanceSqToSegment(e,t,n,i){bt.copy(e).add(t).multiplyScalar(.5),At.copy(t).sub(e).normalize(),wt.copy(this.origin).sub(bt);const r=.5*e.distanceTo(t),a=-this.direction.dot(At),s=wt.dot(this.direction),o=-wt.dot(At),l=wt.lengthSq(),c=Math.abs(1-a*a);let u,h,d,p;if(c>0)if(u=a*o-s,h=a*s-o,p=r*c,u>=0)if(h>=-p)if(h<=p){const e=1/c;u*=e,h*=e,d=u*(u+a*h+2*s)+h*(a*u+h+2*o)+l}else h=r,u=Math.max(0,-(a*h+s)),d=-u*u+h*(h+2*o)+l;else h=-r,u=Math.max(0,-(a*h+s)),d=-u*u+h*(h+2*o)+l;else h<=-p?(u=Math.max(0,-(-a*r+s)),h=u>0?-r:Math.min(Math.max(-r,-o),r),d=-u*u+h*(h+2*o)+l):h<=p?(u=0,h=Math.min(Math.max(-r,-o),r),d=h*(h+2*o)+l):(u=Math.max(0,-(a*r+s)),h=u>0?r:Math.min(Math.max(-r,-o),r),d=-u*u+h*(h+2*o)+l);else h=a>0?-r:r,u=Math.max(0,-(a*h+s)),d=-u*u+h*(h+2*o)+l;return n&&n.copy(this.origin).addScaledVector(this.direction,u),i&&i.copy(bt).addScaledVector(At,h),d}intersectSphere(e,t){Tt.subVectors(e.center,this.origin);const n=Tt.dot(this.direction),i=Tt.dot(Tt)-n*n,r=e.radius*e.radius;if(i>r)return null;const a=Math.sqrt(r-i),s=n-a,o=n+a;return o<0?null:s<0?this.at(o,t):this.at(s,t)}intersectsSphere(e){return this.distanceSqToPoint(e.center)<=e.radius*e.radius}distanceToPlane(e){const t=e.normal.dot(this.direction);if(0===t)return 0===e.distanceToPoint(this.origin)?0:null;const n=-(this.origin.dot(e.normal)+e.constant)/t;return n>=0?n:null}intersectPlane(e,t){const n=this.distanceToPlane(e);return null===n?null:this.at(n,t)}intersectsPlane(e){const t=e.distanceToPoint(this.origin);if(0===t)return!0;return e.normal.dot(this.direction)*t<0}intersectBox(e,t){let n,i,r,a,s,o;const l=1/this.direction.x,c=1/this.direction.y,u=1/this.direction.z,h=this.origin;return l>=0?(n=(e.min.x-h.x)*l,i=(e.max.x-h.x)*l):(n=(e.max.x-h.x)*l,i=(e.min.x-h.x)*l),c>=0?(r=(e.min.y-h.y)*c,a=(e.max.y-h.y)*c):(r=(e.max.y-h.y)*c,a=(e.min.y-h.y)*c),n>a||r>i?null:((r>n||isNaN(n))&&(n=r),(a=0?(s=(e.min.z-h.z)*u,o=(e.max.z-h.z)*u):(s=(e.max.z-h.z)*u,o=(e.min.z-h.z)*u),n>o||s>i?null:((s>n||n!=n)&&(n=s),(o=0?n:i,t)))}intersectsBox(e){return null!==this.intersectBox(e,Tt)}intersectTriangle(e,t,n,i,r){Rt.subVectors(t,e),Ct.subVectors(n,e),Lt.crossVectors(Rt,Ct);let a,s=this.direction.dot(Lt);if(s>0){if(i)return null;a=1}else{if(!(s<0))return null;a=-1,s=-s}wt.subVectors(this.origin,e);const o=a*this.direction.dot(Ct.crossVectors(wt,Ct));if(o<0)return null;const l=a*this.direction.dot(Rt.cross(wt));if(l<0)return null;if(o+l>s)return null;const c=-a*wt.dot(Lt);return c<0?null:this.at(c/s,r)}applyMatrix4(e){return this.origin.applyMatrix4(e),this.direction.transformDirection(e),this}equals(e){return e.origin.equals(this.origin)&&e.direction.equals(this.direction)}clone(){return(new this.constructor).copy(this)}}class Ut{constructor(e,t,n,i,r,a,s,o,l,c,u,h,d,p,f,m){Ut.prototype.isMatrix4=!0,this.elements=[1,0,0,0,0,1,0,0,0,0,1,0,0,0,0,1],void 0!==e&&this.set(e,t,n,i,r,a,s,o,l,c,u,h,d,p,f,m)}set(e,t,n,i,r,a,s,o,l,c,u,h,d,p,f,m){const g=this.elements;return g[0]=e,g[4]=t,g[8]=n,g[12]=i,g[1]=r,g[5]=a,g[9]=s,g[13]=o,g[2]=l,g[6]=c,g[10]=u,g[14]=h,g[3]=d,g[7]=p,g[11]=f,g[15]=m,this}identity(){return this.set(1,0,0,0,0,1,0,0,0,0,1,0,0,0,0,1),this}clone(){return(new Ut).fromArray(this.elements)}copy(e){const t=this.elements,n=e.elements;return t[0]=n[0],t[1]=n[1],t[2]=n[2],t[3]=n[3],t[4]=n[4],t[5]=n[5],t[6]=n[6],t[7]=n[7],t[8]=n[8],t[9]=n[9],t[10]=n[10],t[11]=n[11],t[12]=n[12],t[13]=n[13],t[14]=n[14],t[15]=n[15],this}copyPosition(e){const t=this.elements,n=e.elements;return t[12]=n[12],t[13]=n[13],t[14]=n[14],this}setFromMatrix3(e){const t=e.elements;return this.set(t[0],t[3],t[6],0,t[1],t[4],t[7],0,t[2],t[5],t[8],0,0,0,0,1),this}extractBasis(e,t,n){return e.setFromMatrixColumn(this,0),t.setFromMatrixColumn(this,1),n.setFromMatrixColumn(this,2),this}makeBasis(e,t,n){return this.set(e.x,t.x,n.x,0,e.y,t.y,n.y,0,e.z,t.z,n.z,0,0,0,0,1),this}extractRotation(e){const t=this.elements,n=e.elements,i=1/Dt.setFromMatrixColumn(e,0).length(),r=1/Dt.setFromMatrixColumn(e,1).length(),a=1/Dt.setFromMatrixColumn(e,2).length();return t[0]=n[0]*i,t[1]=n[1]*i,t[2]=n[2]*i,t[3]=0,t[4]=n[4]*r,t[5]=n[5]*r,t[6]=n[6]*r,t[7]=0,t[8]=n[8]*a,t[9]=n[9]*a,t[10]=n[10]*a,t[11]=0,t[12]=0,t[13]=0,t[14]=0,t[15]=1,this}makeRotationFromEuler(e){const t=this.elements,n=e.x,i=e.y,r=e.z,a=Math.cos(n),s=Math.sin(n),o=Math.cos(i),l=Math.sin(i),c=Math.cos(r),u=Math.sin(r);if("XYZ"===e.order){const e=a*c,n=a*u,i=s*c,r=s*u;t[0]=o*c,t[4]=-o*u,t[8]=l,t[1]=n+i*l,t[5]=e-r*l,t[9]=-s*o,t[2]=r-e*l,t[6]=i+n*l,t[10]=a*o}else if("YXZ"===e.order){const e=o*c,n=o*u,i=l*c,r=l*u;t[0]=e+r*s,t[4]=i*s-n,t[8]=a*l,t[1]=a*u,t[5]=a*c,t[9]=-s,t[2]=n*s-i,t[6]=r+e*s,t[10]=a*o}else if("ZXY"===e.order){const e=o*c,n=o*u,i=l*c,r=l*u;t[0]=e-r*s,t[4]=-a*u,t[8]=i+n*s,t[1]=n+i*s,t[5]=a*c,t[9]=r-e*s,t[2]=-a*l,t[6]=s,t[10]=a*o}else if("ZYX"===e.order){const e=a*c,n=a*u,i=s*c,r=s*u;t[0]=o*c,t[4]=i*l-n,t[8]=e*l+r,t[1]=o*u,t[5]=r*l+e,t[9]=n*l-i,t[2]=-l,t[6]=s*o,t[10]=a*o}else if("YZX"===e.order){const e=a*o,n=a*l,i=s*o,r=s*l;t[0]=o*c,t[4]=r-e*u,t[8]=i*u+n,t[1]=u,t[5]=a*c,t[9]=-s*c,t[2]=-l*c,t[6]=n*u+i,t[10]=e-r*u}else if("XZY"===e.order){const e=a*o,n=a*l,i=s*o,r=s*l;t[0]=o*c,t[4]=-u,t[8]=l*c,t[1]=e*u+r,t[5]=a*c,t[9]=n*u-i,t[2]=i*u-n,t[6]=s*c,t[10]=r*u+e}return t[3]=0,t[7]=0,t[11]=0,t[12]=0,t[13]=0,t[14]=0,t[15]=1,this}makeRotationFromQuaternion(e){return this.compose(Nt,e,Ot)}lookAt(e,t,n){const i=this.elements;return zt.subVectors(e,t),0===zt.lengthSq()&&(zt.z=1),zt.normalize(),Ft.crossVectors(n,zt),0===Ft.lengthSq()&&(1===Math.abs(n.z)?zt.x+=1e-4:zt.z+=1e-4,zt.normalize(),Ft.crossVectors(n,zt)),Ft.normalize(),Bt.crossVectors(zt,Ft),i[0]=Ft.x,i[4]=Bt.x,i[8]=zt.x,i[1]=Ft.y,i[5]=Bt.y,i[9]=zt.y,i[2]=Ft.z,i[6]=Bt.z,i[10]=zt.z,this}multiply(e){return this.multiplyMatrices(this,e)}premultiply(e){return this.multiplyMatrices(e,this)}multiplyMatrices(e,t){const n=e.elements,i=t.elements,r=this.elements,a=n[0],s=n[4],o=n[8],l=n[12],c=n[1],u=n[5],h=n[9],d=n[13],p=n[2],f=n[6],m=n[10],g=n[14],_=n[3],v=n[7],x=n[11],M=n[15],y=i[0],E=i[4],S=i[8],T=i[12],b=i[1],A=i[5],w=i[9],R=i[13],C=i[2],L=i[6],P=i[10],U=i[14],D=i[3],I=i[7],N=i[11],O=i[15];return r[0]=a*y+s*b+o*C+l*D,r[4]=a*E+s*A+o*L+l*I,r[8]=a*S+s*w+o*P+l*N,r[12]=a*T+s*R+o*U+l*O,r[1]=c*y+u*b+h*C+d*D,r[5]=c*E+u*A+h*L+d*I,r[9]=c*S+u*w+h*P+d*N,r[13]=c*T+u*R+h*U+d*O,r[2]=p*y+f*b+m*C+g*D,r[6]=p*E+f*A+m*L+g*I,r[10]=p*S+f*w+m*P+g*N,r[14]=p*T+f*R+m*U+g*O,r[3]=_*y+v*b+x*C+M*D,r[7]=_*E+v*A+x*L+M*I,r[11]=_*S+v*w+x*P+M*N,r[15]=_*T+v*R+x*U+M*O,this}multiplyScalar(e){const t=this.elements;return t[0]*=e,t[4]*=e,t[8]*=e,t[12]*=e,t[1]*=e,t[5]*=e,t[9]*=e,t[13]*=e,t[2]*=e,t[6]*=e,t[10]*=e,t[14]*=e,t[3]*=e,t[7]*=e,t[11]*=e,t[15]*=e,this}determinant(){const e=this.elements,t=e[0],n=e[4],i=e[8],r=e[12],a=e[1],s=e[5],o=e[9],l=e[13],c=e[2],u=e[6],h=e[10],d=e[14];return e[3]*(+r*o*u-i*l*u-r*s*h+n*l*h+i*s*d-n*o*d)+e[7]*(+t*o*d-t*l*h+r*a*h-i*a*d+i*l*c-r*o*c)+e[11]*(+t*l*u-t*s*d-r*a*u+n*a*d+r*s*c-n*l*c)+e[15]*(-i*s*c-t*o*u+t*s*h+i*a*u-n*a*h+n*o*c)}transpose(){const e=this.elements;let t;return t=e[1],e[1]=e[4],e[4]=t,t=e[2],e[2]=e[8],e[8]=t,t=e[6],e[6]=e[9],e[9]=t,t=e[3],e[3]=e[12],e[12]=t,t=e[7],e[7]=e[13],e[13]=t,t=e[11],e[11]=e[14],e[14]=t,this}setPosition(e,t,n){const i=this.elements;return e.isVector3?(i[12]=e.x,i[13]=e.y,i[14]=e.z):(i[12]=e,i[13]=t,i[14]=n),this}invert(){const e=this.elements,t=e[0],n=e[1],i=e[2],r=e[3],a=e[4],s=e[5],o=e[6],l=e[7],c=e[8],u=e[9],h=e[10],d=e[11],p=e[12],f=e[13],m=e[14],g=e[15],_=u*m*l-f*h*l+f*o*d-s*m*d-u*o*g+s*h*g,v=p*h*l-c*m*l-p*o*d+a*m*d+c*o*g-a*h*g,x=c*f*l-p*u*l+p*s*d-a*f*d-c*s*g+a*u*g,M=p*u*o-c*f*o-p*s*h+a*f*h+c*s*m-a*u*m,y=t*_+n*v+i*x+r*M;if(0===y)return this.set(0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0);const E=1/y;return e[0]=_*E,e[1]=(f*h*r-u*m*r-f*i*d+n*m*d+u*i*g-n*h*g)*E,e[2]=(s*m*r-f*o*r+f*i*l-n*m*l-s*i*g+n*o*g)*E,e[3]=(u*o*r-s*h*r-u*i*l+n*h*l+s*i*d-n*o*d)*E,e[4]=v*E,e[5]=(c*m*r-p*h*r+p*i*d-t*m*d-c*i*g+t*h*g)*E,e[6]=(p*o*r-a*m*r-p*i*l+t*m*l+a*i*g-t*o*g)*E,e[7]=(a*h*r-c*o*r+c*i*l-t*h*l-a*i*d+t*o*d)*E,e[8]=x*E,e[9]=(p*u*r-c*f*r-p*n*d+t*f*d+c*n*g-t*u*g)*E,e[10]=(a*f*r-p*s*r+p*n*l-t*f*l-a*n*g+t*s*g)*E,e[11]=(c*s*r-a*u*r-c*n*l+t*u*l+a*n*d-t*s*d)*E,e[12]=M*E,e[13]=(c*f*i-p*u*i+p*n*h-t*f*h-c*n*m+t*u*m)*E,e[14]=(p*s*i-a*f*i-p*n*o+t*f*o+a*n*m-t*s*m)*E,e[15]=(a*u*i-c*s*i+c*n*o-t*u*o-a*n*h+t*s*h)*E,this}scale(e){const t=this.elements,n=e.x,i=e.y,r=e.z;return t[0]*=n,t[4]*=i,t[8]*=r,t[1]*=n,t[5]*=i,t[9]*=r,t[2]*=n,t[6]*=i,t[10]*=r,t[3]*=n,t[7]*=i,t[11]*=r,this}getMaxScaleOnAxis(){const e=this.elements,t=e[0]*e[0]+e[1]*e[1]+e[2]*e[2],n=e[4]*e[4]+e[5]*e[5]+e[6]*e[6],i=e[8]*e[8]+e[9]*e[9]+e[10]*e[10];return Math.sqrt(Math.max(t,n,i))}makeTranslation(e,t,n){return e.isVector3?this.set(1,0,0,e.x,0,1,0,e.y,0,0,1,e.z,0,0,0,1):this.set(1,0,0,e,0,1,0,t,0,0,1,n,0,0,0,1),this}makeRotationX(e){const t=Math.cos(e),n=Math.sin(e);return this.set(1,0,0,0,0,t,-n,0,0,n,t,0,0,0,0,1),this}makeRotationY(e){const t=Math.cos(e),n=Math.sin(e);return this.set(t,0,n,0,0,1,0,0,-n,0,t,0,0,0,0,1),this}makeRotationZ(e){const t=Math.cos(e),n=Math.sin(e);return this.set(t,-n,0,0,n,t,0,0,0,0,1,0,0,0,0,1),this}makeRotationAxis(e,t){const n=Math.cos(t),i=Math.sin(t),r=1-n,a=e.x,s=e.y,o=e.z,l=r*a,c=r*s;return this.set(l*a+n,l*s-i*o,l*o+i*s,0,l*s+i*o,c*s+n,c*o-i*a,0,l*o-i*s,c*o+i*a,r*o*o+n,0,0,0,0,1),this}makeScale(e,t,n){return this.set(e,0,0,0,0,t,0,0,0,0,n,0,0,0,0,1),this}makeShear(e,t,n,i,r,a){return this.set(1,n,r,0,e,1,a,0,t,i,1,0,0,0,0,1),this}compose(e,t,n){const i=this.elements,r=t._x,a=t._y,s=t._z,o=t._w,l=r+r,c=a+a,u=s+s,h=r*l,d=r*c,p=r*u,f=a*c,m=a*u,g=s*u,_=o*l,v=o*c,x=o*u,M=n.x,y=n.y,E=n.z;return i[0]=(1-(f+g))*M,i[1]=(d+x)*M,i[2]=(p-v)*M,i[3]=0,i[4]=(d-x)*y,i[5]=(1-(h+g))*y,i[6]=(m+_)*y,i[7]=0,i[8]=(p+v)*E,i[9]=(m-_)*E,i[10]=(1-(h+f))*E,i[11]=0,i[12]=e.x,i[13]=e.y,i[14]=e.z,i[15]=1,this}decompose(e,t,n){const i=this.elements;let r=Dt.set(i[0],i[1],i[2]).length();const a=Dt.set(i[4],i[5],i[6]).length(),s=Dt.set(i[8],i[9],i[10]).length();this.determinant()<0&&(r=-r),e.x=i[12],e.y=i[13],e.z=i[14],It.copy(this);const o=1/r,l=1/a,c=1/s;return It.elements[0]*=o,It.elements[1]*=o,It.elements[2]*=o,It.elements[4]*=l,It.elements[5]*=l,It.elements[6]*=l,It.elements[8]*=c,It.elements[9]*=c,It.elements[10]*=c,t.setFromRotationMatrix(It),n.x=r,n.y=a,n.z=s,this}makePerspective(e,t,n,i,r,a,s=2e3){const o=this.elements,l=2*r/(t-e),c=2*r/(n-i),u=(t+e)/(t-e),h=(n+i)/(n-i);let d,p;if(s===he)d=-(a+r)/(a-r),p=-2*a*r/(a-r);else{if(s!==de)throw new Error("THREE.Matrix4.makePerspective(): Invalid coordinate system: "+s);d=-a/(a-r),p=-a*r/(a-r)}return o[0]=l,o[4]=0,o[8]=u,o[12]=0,o[1]=0,o[5]=c,o[9]=h,o[13]=0,o[2]=0,o[6]=0,o[10]=d,o[14]=p,o[3]=0,o[7]=0,o[11]=-1,o[15]=0,this}makeOrthographic(e,t,n,i,r,a,s=2e3){const o=this.elements,l=1/(t-e),c=1/(n-i),u=1/(a-r),h=(t+e)*l,d=(n+i)*c;let p,f;if(s===he)p=(a+r)*u,f=-2*u;else{if(s!==de)throw new Error("THREE.Matrix4.makeOrthographic(): Invalid coordinate system: "+s);p=r*u,f=-1*u}return o[0]=2*l,o[4]=0,o[8]=0,o[12]=-h,o[1]=0,o[5]=2*c,o[9]=0,o[13]=-d,o[2]=0,o[6]=0,o[10]=f,o[14]=-p,o[3]=0,o[7]=0,o[11]=0,o[15]=1,this}equals(e){const t=this.elements,n=e.elements;for(let i=0;i<16;i++)if(t[i]!==n[i])return!1;return!0}fromArray(e,t=0){for(let n=0;n<16;n++)this.elements[n]=e[n+t];return this}toArray(e=[],t=0){const n=this.elements;return e[t]=n[0],e[t+1]=n[1],e[t+2]=n[2],e[t+3]=n[3],e[t+4]=n[4],e[t+5]=n[5],e[t+6]=n[6],e[t+7]=n[7],e[t+8]=n[8],e[t+9]=n[9],e[t+10]=n[10],e[t+11]=n[11],e[t+12]=n[12],e[t+13]=n[13],e[t+14]=n[14],e[t+15]=n[15],e}}const Dt=new nt,It=new Ut,Nt=new nt(0,0,0),Ot=new nt(1,1,1),Ft=new nt,Bt=new nt,zt=new nt,Ht=new Ut,Vt=new tt;class Gt{constructor(e=0,t=0,n=0,i=Gt.DEFAULT_ORDER){this.isEuler=!0,this._x=e,this._y=t,this._z=n,this._order=i}get x(){return this._x}set x(e){this._x=e,this._onChangeCallback()}get y(){return this._y}set y(e){this._y=e,this._onChangeCallback()}get z(){return this._z}set z(e){this._z=e,this._onChangeCallback()}get order(){return this._order}set order(e){this._order=e,this._onChangeCallback()}set(e,t,n,i=this._order){return this._x=e,this._y=t,this._z=n,this._order=i,this._onChangeCallback(),this}clone(){return new this.constructor(this._x,this._y,this._z,this._order)}copy(e){return this._x=e._x,this._y=e._y,this._z=e._z,this._order=e._order,this._onChangeCallback(),this}setFromRotationMatrix(e,t=this._order,n=!0){const i=e.elements,r=i[0],a=i[4],s=i[8],o=i[1],l=i[5],c=i[9],u=i[2],h=i[6],d=i[10];switch(t){case"XYZ":this._y=Math.asin(xe(s,-1,1)),Math.abs(s)<.9999999?(this._x=Math.atan2(-c,d),this._z=Math.atan2(-a,r)):(this._x=Math.atan2(h,l),this._z=0);break;case"YXZ":this._x=Math.asin(-xe(c,-1,1)),Math.abs(c)<.9999999?(this._y=Math.atan2(s,d),this._z=Math.atan2(o,l)):(this._y=Math.atan2(-u,r),this._z=0);break;case"ZXY":this._x=Math.asin(xe(h,-1,1)),Math.abs(h)<.9999999?(this._y=Math.atan2(-u,d),this._z=Math.atan2(-a,l)):(this._y=0,this._z=Math.atan2(o,r));break;case"ZYX":this._y=Math.asin(-xe(u,-1,1)),Math.abs(u)<.9999999?(this._x=Math.atan2(h,d),this._z=Math.atan2(o,r)):(this._x=0,this._z=Math.atan2(-a,l));break;case"YZX":this._z=Math.asin(xe(o,-1,1)),Math.abs(o)<.9999999?(this._x=Math.atan2(-c,l),this._y=Math.atan2(-u,r)):(this._x=0,this._y=Math.atan2(s,d));break;case"XZY":this._z=Math.asin(-xe(a,-1,1)),Math.abs(a)<.9999999?(this._x=Math.atan2(h,l),this._y=Math.atan2(s,r)):(this._x=Math.atan2(-c,d),this._y=0);break;default:console.warn("THREE.Euler: .setFromRotationMatrix() encountered an unknown order: "+t)}return this._order=t,!0===n&&this._onChangeCallback(),this}setFromQuaternion(e,t,n){return Ht.makeRotationFromQuaternion(e),this.setFromRotationMatrix(Ht,t,n)}setFromVector3(e,t=this._order){return this.set(e.x,e.y,e.z,t)}reorder(e){return Vt.setFromEuler(this),this.setFromQuaternion(Vt,e)}equals(e){return e._x===this._x&&e._y===this._y&&e._z===this._z&&e._order===this._order}fromArray(e){return this._x=e[0],this._y=e[1],this._z=e[2],void 0!==e[3]&&(this._order=e[3]),this._onChangeCallback(),this}toArray(e=[],t=0){return e[t]=this._x,e[t+1]=this._y,e[t+2]=this._z,e[t+3]=this._order,e}_onChange(e){return this._onChangeCallback=e,this}_onChangeCallback(){}*[Symbol.iterator](){yield this._x,yield this._y,yield this._z,yield this._order}}Gt.DEFAULT_ORDER="XYZ";class kt{constructor(){this.mask=1}set(e){this.mask=(1<>>0}enable(e){this.mask|=1<1){for(let e=0;e1){for(let e=0;e0&&(n=n.concat(r))}return n}getWorldPosition(e){return this.updateWorldMatrix(!0,!1),e.setFromMatrixPosition(this.matrixWorld)}getWorldQuaternion(e){return this.updateWorldMatrix(!0,!1),this.matrixWorld.decompose(Kt,e,Zt),e}getWorldScale(e){return this.updateWorldMatrix(!0,!1),this.matrixWorld.decompose(Kt,Jt,e),e}getWorldDirection(e){this.updateWorldMatrix(!0,!1);const t=this.matrixWorld.elements;return e.set(t[8],t[9],t[10]).normalize()}raycast(){}traverse(e){e(this);const t=this.children;for(let n=0,i=t.length;n0&&(i.userData=this.userData),i.layers=this.layers.mask,i.matrix=this.matrix.toArray(),i.up=this.up.toArray(),!1===this.matrixAutoUpdate&&(i.matrixAutoUpdate=!1),this.isInstancedMesh&&(i.type="InstancedMesh",i.count=this.count,i.instanceMatrix=this.instanceMatrix.toJSON(),null!==this.instanceColor&&(i.instanceColor=this.instanceColor.toJSON())),this.isScene)this.background&&(this.background.isColor?i.background=this.background.toJSON():this.background.isTexture&&(i.background=this.background.toJSON(e).uuid)),this.environment&&this.environment.isTexture&&!0!==this.environment.isRenderTargetTexture&&(i.environment=this.environment.toJSON(e).uuid);else if(this.isMesh||this.isLine||this.isPoints){i.geometry=r(e.geometries,this.geometry);const t=this.geometry.parameters;if(void 0!==t&&void 0!==t.shapes){const n=t.shapes;if(Array.isArray(n))for(let t=0,i=n.length;t0){i.children=[];for(let t=0;t0){i.animations=[];for(let t=0;t0&&(n.geometries=t),i.length>0&&(n.materials=i),r.length>0&&(n.textures=r),s.length>0&&(n.images=s),o.length>0&&(n.shapes=o),l.length>0&&(n.skeletons=l),c.length>0&&(n.animations=c),u.length>0&&(n.nodes=u)}return n.object=i,n;function a(e){const t=[];for(const n in e){const i=e[n];delete i.metadata,t.push(i)}return t}}clone(e){return(new this.constructor).copy(this,e)}copy(e,t=!0){if(this.name=e.name,this.up.copy(e.up),this.position.copy(e.position),this.rotation.order=e.rotation.order,this.quaternion.copy(e.quaternion),this.scale.copy(e.scale),this.matrix.copy(e.matrix),this.matrixWorld.copy(e.matrixWorld),this.matrixAutoUpdate=e.matrixAutoUpdate,this.matrixWorldNeedsUpdate=e.matrixWorldNeedsUpdate,this.matrixWorldAutoUpdate=e.matrixWorldAutoUpdate,this.layers.mask=e.layers.mask,this.visible=e.visible,this.castShadow=e.castShadow,this.receiveShadow=e.receiveShadow,this.frustumCulled=e.frustumCulled,this.renderOrder=e.renderOrder,this.animations=e.animations.slice(),this.userData=JSON.parse(JSON.stringify(e.userData)),!0===t)for(let n=0;n0?i.multiplyScalar(1/Math.sqrt(r)):i.set(0,0,0)}static getBarycoord(e,t,n,i,r){an.subVectors(i,t),sn.subVectors(n,t),on.subVectors(e,t);const a=an.dot(an),s=an.dot(sn),o=an.dot(on),l=sn.dot(sn),c=sn.dot(on),u=a*l-s*s;if(0===u)return r.set(-2,-1,-1);const h=1/u,d=(l*o-s*c)*h,p=(a*c-s*o)*h;return r.set(1-d-p,p,d)}static containsPoint(e,t,n,i){return this.getBarycoord(e,t,n,i,ln),ln.x>=0&&ln.y>=0&&ln.x+ln.y<=1}static getUV(e,t,n,i,r,a,s,o){return!1===mn&&(console.warn("THREE.Triangle.getUV() has been renamed to THREE.Triangle.getInterpolation()."),mn=!0),this.getInterpolation(e,t,n,i,r,a,s,o)}static getInterpolation(e,t,n,i,r,a,s,o){return this.getBarycoord(e,t,n,i,ln),o.setScalar(0),o.addScaledVector(r,ln.x),o.addScaledVector(a,ln.y),o.addScaledVector(s,ln.z),o}static isFrontFacing(e,t,n,i){return an.subVectors(n,t),sn.subVectors(e,t),an.cross(sn).dot(i)<0}set(e,t,n){return this.a.copy(e),this.b.copy(t),this.c.copy(n),this}setFromPointsAndIndices(e,t,n,i){return this.a.copy(e[t]),this.b.copy(e[n]),this.c.copy(e[i]),this}setFromAttributeAndIndices(e,t,n,i){return this.a.fromBufferAttribute(e,t),this.b.fromBufferAttribute(e,n),this.c.fromBufferAttribute(e,i),this}clone(){return(new this.constructor).copy(this)}copy(e){return this.a.copy(e.a),this.b.copy(e.b),this.c.copy(e.c),this}getArea(){return an.subVectors(this.c,this.b),sn.subVectors(this.a,this.b),.5*an.cross(sn).length()}getMidpoint(e){return e.addVectors(this.a,this.b).add(this.c).multiplyScalar(1/3)}getNormal(e){return gn.getNormal(this.a,this.b,this.c,e)}getPlane(e){return e.setFromCoplanarPoints(this.a,this.b,this.c)}getBarycoord(e,t){return gn.getBarycoord(e,this.a,this.b,this.c,t)}getUV(e,t,n,i,r){return!1===mn&&(console.warn("THREE.Triangle.getUV() has been renamed to THREE.Triangle.getInterpolation()."),mn=!0),gn.getInterpolation(e,this.a,this.b,this.c,t,n,i,r)}getInterpolation(e,t,n,i,r){return gn.getInterpolation(e,this.a,this.b,this.c,t,n,i,r)}containsPoint(e){return gn.containsPoint(e,this.a,this.b,this.c)}isFrontFacing(e){return gn.isFrontFacing(this.a,this.b,this.c,e)}intersectsBox(e){return e.intersectsTriangle(this)}closestPointToPoint(e,t){const n=this.a,i=this.b,r=this.c;let a,s;cn.subVectors(i,n),un.subVectors(r,n),dn.subVectors(e,n);const o=cn.dot(dn),l=un.dot(dn);if(o<=0&&l<=0)return t.copy(n);pn.subVectors(e,i);const c=cn.dot(pn),u=un.dot(pn);if(c>=0&&u<=c)return t.copy(i);const h=o*u-c*l;if(h<=0&&o>=0&&c<=0)return a=o/(o-c),t.copy(n).addScaledVector(cn,a);fn.subVectors(e,r);const d=cn.dot(fn),p=un.dot(fn);if(p>=0&&d<=p)return t.copy(r);const f=d*l-o*p;if(f<=0&&l>=0&&p<=0)return s=l/(l-p),t.copy(n).addScaledVector(un,s);const m=c*p-d*u;if(m<=0&&u-c>=0&&d-p>=0)return hn.subVectors(r,i),s=(u-c)/(u-c+(d-p)),t.copy(i).addScaledVector(hn,s);const g=1/(m+f+h);return a=f*g,s=h*g,t.copy(n).addScaledVector(cn,a).addScaledVector(un,s)}equals(e){return e.a.equals(this.a)&&e.b.equals(this.b)&&e.c.equals(this.c)}}let _n=0;class vn extends pe{constructor(){super(),this.isMaterial=!0,Object.defineProperty(this,"id",{value:_n++}),this.uuid=ve(),this.name="",this.type="Material",this.blending=1,this.side=c,this.vertexColors=!1,this.opacity=1,this.transparent=!1,this.alphaHash=!1,this.blendSrc=204,this.blendDst=205,this.blendEquation=d,this.blendSrcAlpha=null,this.blendDstAlpha=null,this.blendEquationAlpha=null,this.depthFunc=3,this.depthTest=!0,this.depthWrite=!0,this.stencilWriteMask=255,this.stencilFunc=519,this.stencilRef=0,this.stencilFuncMask=255,this.stencilFail=oe,this.stencilZFail=oe,this.stencilZPass=oe,this.stencilWrite=!1,this.clippingPlanes=null,this.clipIntersection=!1,this.clipShadows=!1,this.shadowSide=null,this.colorWrite=!0,this.precision=null,this.polygonOffset=!1,this.polygonOffsetFactor=0,this.polygonOffsetUnits=0,this.dithering=!1,this.alphaToCoverage=!1,this.premultipliedAlpha=!1,this.forceSinglePass=!1,this.visible=!0,this.toneMapped=!0,this.userData={},this.version=0,this._alphaTest=0}get alphaTest(){return this._alphaTest}set alphaTest(e){this._alphaTest>0!=e>0&&this.version++,this._alphaTest=e}onBuild(){}onBeforeRender(){}onBeforeCompile(){}customProgramCacheKey(){return this.onBeforeCompile.toString()}setValues(e){if(void 0!==e)for(const t in e){const n=e[t];if(void 0===n){console.warn(`THREE.Material: parameter '${t}' has value of undefined.`);continue}const i=this[t];void 0!==i?i&&i.isColor?i.set(n):i&&i.isVector3&&n&&n.isVector3?i.copy(n):this[t]=n:console.warn(`THREE.Material: '${t}' is not a property of THREE.${this.type}.`)}}toJSON(e){const t=void 0===e||"string"==typeof e;t&&(e={textures:{},images:{}});const n={metadata:{version:4.6,type:"Material",generator:"Material.toJSON"}};function i(e){const t=[];for(const n in e){const i=e[n];delete i.metadata,t.push(i)}return t}if(n.uuid=this.uuid,n.type=this.type,""!==this.name&&(n.name=this.name),this.color&&this.color.isColor&&(n.color=this.color.getHex()),void 0!==this.roughness&&(n.roughness=this.roughness),void 0!==this.metalness&&(n.metalness=this.metalness),void 0!==this.sheen&&(n.sheen=this.sheen),this.sheenColor&&this.sheenColor.isColor&&(n.sheenColor=this.sheenColor.getHex()),void 0!==this.sheenRoughness&&(n.sheenRoughness=this.sheenRoughness),this.emissive&&this.emissive.isColor&&(n.emissive=this.emissive.getHex()),this.emissiveIntensity&&1!==this.emissiveIntensity&&(n.emissiveIntensity=this.emissiveIntensity),this.specular&&this.specular.isColor&&(n.specular=this.specular.getHex()),void 0!==this.specularIntensity&&(n.specularIntensity=this.specularIntensity),this.specularColor&&this.specularColor.isColor&&(n.specularColor=this.specularColor.getHex()),void 0!==this.shininess&&(n.shininess=this.shininess),void 0!==this.clearcoat&&(n.clearcoat=this.clearcoat),void 0!==this.clearcoatRoughness&&(n.clearcoatRoughness=this.clearcoatRoughness),this.clearcoatMap&&this.clearcoatMap.isTexture&&(n.clearcoatMap=this.clearcoatMap.toJSON(e).uuid),this.clearcoatRoughnessMap&&this.clearcoatRoughnessMap.isTexture&&(n.clearcoatRoughnessMap=this.clearcoatRoughnessMap.toJSON(e).uuid),this.clearcoatNormalMap&&this.clearcoatNormalMap.isTexture&&(n.clearcoatNormalMap=this.clearcoatNormalMap.toJSON(e).uuid,n.clearcoatNormalScale=this.clearcoatNormalScale.toArray()),void 0!==this.iridescence&&(n.iridescence=this.iridescence),void 0!==this.iridescenceIOR&&(n.iridescenceIOR=this.iridescenceIOR),void 0!==this.iridescenceThicknessRange&&(n.iridescenceThicknessRange=this.iridescenceThicknessRange),this.iridescenceMap&&this.iridescenceMap.isTexture&&(n.iridescenceMap=this.iridescenceMap.toJSON(e).uuid),this.iridescenceThicknessMap&&this.iridescenceThicknessMap.isTexture&&(n.iridescenceThicknessMap=this.iridescenceThicknessMap.toJSON(e).uuid),void 0!==this.anisotropy&&(n.anisotropy=this.anisotropy),void 0!==this.anisotropyRotation&&(n.anisotropyRotation=this.anisotropyRotation),this.anisotropyMap&&this.anisotropyMap.isTexture&&(n.anisotropyMap=this.anisotropyMap.toJSON(e).uuid),this.map&&this.map.isTexture&&(n.map=this.map.toJSON(e).uuid),this.matcap&&this.matcap.isTexture&&(n.matcap=this.matcap.toJSON(e).uuid),this.alphaMap&&this.alphaMap.isTexture&&(n.alphaMap=this.alphaMap.toJSON(e).uuid),this.lightMap&&this.lightMap.isTexture&&(n.lightMap=this.lightMap.toJSON(e).uuid,n.lightMapIntensity=this.lightMapIntensity),this.aoMap&&this.aoMap.isTexture&&(n.aoMap=this.aoMap.toJSON(e).uuid,n.aoMapIntensity=this.aoMapIntensity),this.bumpMap&&this.bumpMap.isTexture&&(n.bumpMap=this.bumpMap.toJSON(e).uuid,n.bumpScale=this.bumpScale),this.normalMap&&this.normalMap.isTexture&&(n.normalMap=this.normalMap.toJSON(e).uuid,n.normalMapType=this.normalMapType,n.normalScale=this.normalScale.toArray()),this.displacementMap&&this.displacementMap.isTexture&&(n.displacementMap=this.displacementMap.toJSON(e).uuid,n.displacementScale=this.displacementScale,n.displacementBias=this.displacementBias),this.roughnessMap&&this.roughnessMap.isTexture&&(n.roughnessMap=this.roughnessMap.toJSON(e).uuid),this.metalnessMap&&this.metalnessMap.isTexture&&(n.metalnessMap=this.metalnessMap.toJSON(e).uuid),this.emissiveMap&&this.emissiveMap.isTexture&&(n.emissiveMap=this.emissiveMap.toJSON(e).uuid),this.specularMap&&this.specularMap.isTexture&&(n.specularMap=this.specularMap.toJSON(e).uuid),this.specularIntensityMap&&this.specularIntensityMap.isTexture&&(n.specularIntensityMap=this.specularIntensityMap.toJSON(e).uuid),this.specularColorMap&&this.specularColorMap.isTexture&&(n.specularColorMap=this.specularColorMap.toJSON(e).uuid),this.envMap&&this.envMap.isTexture&&(n.envMap=this.envMap.toJSON(e).uuid,void 0!==this.combine&&(n.combine=this.combine)),void 0!==this.envMapIntensity&&(n.envMapIntensity=this.envMapIntensity),void 0!==this.reflectivity&&(n.reflectivity=this.reflectivity),void 0!==this.refractionRatio&&(n.refractionRatio=this.refractionRatio),this.gradientMap&&this.gradientMap.isTexture&&(n.gradientMap=this.gradientMap.toJSON(e).uuid),void 0!==this.transmission&&(n.transmission=this.transmission),this.transmissionMap&&this.transmissionMap.isTexture&&(n.transmissionMap=this.transmissionMap.toJSON(e).uuid),void 0!==this.thickness&&(n.thickness=this.thickness),this.thicknessMap&&this.thicknessMap.isTexture&&(n.thicknessMap=this.thicknessMap.toJSON(e).uuid),void 0!==this.attenuationDistance&&this.attenuationDistance!==1/0&&(n.attenuationDistance=this.attenuationDistance),void 0!==this.attenuationColor&&(n.attenuationColor=this.attenuationColor.getHex()),void 0!==this.size&&(n.size=this.size),null!==this.shadowSide&&(n.shadowSide=this.shadowSide),void 0!==this.sizeAttenuation&&(n.sizeAttenuation=this.sizeAttenuation),1!==this.blending&&(n.blending=this.blending),this.side!==c&&(n.side=this.side),this.vertexColors&&(n.vertexColors=!0),this.opacity<1&&(n.opacity=this.opacity),!0===this.transparent&&(n.transparent=this.transparent),n.depthFunc=this.depthFunc,n.depthTest=this.depthTest,n.depthWrite=this.depthWrite,n.colorWrite=this.colorWrite,n.stencilWrite=this.stencilWrite,n.stencilWriteMask=this.stencilWriteMask,n.stencilFunc=this.stencilFunc,n.stencilRef=this.stencilRef,n.stencilFuncMask=this.stencilFuncMask,n.stencilFail=this.stencilFail,n.stencilZFail=this.stencilZFail,n.stencilZPass=this.stencilZPass,void 0!==this.rotation&&0!==this.rotation&&(n.rotation=this.rotation),!0===this.polygonOffset&&(n.polygonOffset=!0),0!==this.polygonOffsetFactor&&(n.polygonOffsetFactor=this.polygonOffsetFactor),0!==this.polygonOffsetUnits&&(n.polygonOffsetUnits=this.polygonOffsetUnits),void 0!==this.linewidth&&1!==this.linewidth&&(n.linewidth=this.linewidth),void 0!==this.dashSize&&(n.dashSize=this.dashSize),void 0!==this.gapSize&&(n.gapSize=this.gapSize),void 0!==this.scale&&(n.scale=this.scale),!0===this.dithering&&(n.dithering=!0),this.alphaTest>0&&(n.alphaTest=this.alphaTest),!0===this.alphaHash&&(n.alphaHash=this.alphaHash),!0===this.alphaToCoverage&&(n.alphaToCoverage=this.alphaToCoverage),!0===this.premultipliedAlpha&&(n.premultipliedAlpha=this.premultipliedAlpha),!0===this.forceSinglePass&&(n.forceSinglePass=this.forceSinglePass),!0===this.wireframe&&(n.wireframe=this.wireframe),this.wireframeLinewidth>1&&(n.wireframeLinewidth=this.wireframeLinewidth),"round"!==this.wireframeLinecap&&(n.wireframeLinecap=this.wireframeLinecap),"round"!==this.wireframeLinejoin&&(n.wireframeLinejoin=this.wireframeLinejoin),!0===this.flatShading&&(n.flatShading=this.flatShading),!1===this.visible&&(n.visible=!1),!1===this.toneMapped&&(n.toneMapped=!1),!1===this.fog&&(n.fog=!1),Object.keys(this.userData).length>0&&(n.userData=this.userData),t){const t=i(e.textures),r=i(e.images);t.length>0&&(n.textures=t),r.length>0&&(n.images=r)}return n}clone(){return(new this.constructor).copy(this)}copy(e){this.name=e.name,this.blending=e.blending,this.side=e.side,this.vertexColors=e.vertexColors,this.opacity=e.opacity,this.transparent=e.transparent,this.blendSrc=e.blendSrc,this.blendDst=e.blendDst,this.blendEquation=e.blendEquation,this.blendSrcAlpha=e.blendSrcAlpha,this.blendDstAlpha=e.blendDstAlpha,this.blendEquationAlpha=e.blendEquationAlpha,this.depthFunc=e.depthFunc,this.depthTest=e.depthTest,this.depthWrite=e.depthWrite,this.stencilWriteMask=e.stencilWriteMask,this.stencilFunc=e.stencilFunc,this.stencilRef=e.stencilRef,this.stencilFuncMask=e.stencilFuncMask,this.stencilFail=e.stencilFail,this.stencilZFail=e.stencilZFail,this.stencilZPass=e.stencilZPass,this.stencilWrite=e.stencilWrite;const t=e.clippingPlanes;let n=null;if(null!==t){const e=t.length;n=new Array(e);for(let i=0;i!==e;++i)n[i]=t[i].clone()}return this.clippingPlanes=n,this.clipIntersection=e.clipIntersection,this.clipShadows=e.clipShadows,this.shadowSide=e.shadowSide,this.colorWrite=e.colorWrite,this.precision=e.precision,this.polygonOffset=e.polygonOffset,this.polygonOffsetFactor=e.polygonOffsetFactor,this.polygonOffsetUnits=e.polygonOffsetUnits,this.dithering=e.dithering,this.alphaTest=e.alphaTest,this.alphaHash=e.alphaHash,this.alphaToCoverage=e.alphaToCoverage,this.premultipliedAlpha=e.premultipliedAlpha,this.forceSinglePass=e.forceSinglePass,this.visible=e.visible,this.toneMapped=e.toneMapped,this.userData=JSON.parse(JSON.stringify(e.userData)),this}dispose(){this.dispatchEvent({type:"dispose"})}set needsUpdate(e){!0===e&&this.version++}}const xn={aliceblue:15792383,antiquewhite:16444375,aqua:65535,aquamarine:8388564,azure:15794175,beige:16119260,bisque:16770244,black:0,blanchedalmond:16772045,blue:255,blueviolet:9055202,brown:10824234,burlywood:14596231,cadetblue:6266528,chartreuse:8388352,chocolate:13789470,coral:16744272,cornflowerblue:6591981,cornsilk:16775388,crimson:14423100,cyan:65535,darkblue:139,darkcyan:35723,darkgoldenrod:12092939,darkgray:11119017,darkgreen:25600,darkgrey:11119017,darkkhaki:12433259,darkmagenta:9109643,darkolivegreen:5597999,darkorange:16747520,darkorchid:10040012,darkred:9109504,darksalmon:15308410,darkseagreen:9419919,darkslateblue:4734347,darkslategray:3100495,darkslategrey:3100495,darkturquoise:52945,darkviolet:9699539,deeppink:16716947,deepskyblue:49151,dimgray:6908265,dimgrey:6908265,dodgerblue:2003199,firebrick:11674146,floralwhite:16775920,forestgreen:2263842,fuchsia:16711935,gainsboro:14474460,ghostwhite:16316671,gold:16766720,goldenrod:14329120,gray:8421504,green:32768,greenyellow:11403055,grey:8421504,honeydew:15794160,hotpink:16738740,indianred:13458524,indigo:4915330,ivory:16777200,khaki:15787660,lavender:15132410,lavenderblush:16773365,lawngreen:8190976,lemonchiffon:16775885,lightblue:11393254,lightcoral:15761536,lightcyan:14745599,lightgoldenrodyellow:16448210,lightgray:13882323,lightgreen:9498256,lightgrey:13882323,lightpink:16758465,lightsalmon:16752762,lightseagreen:2142890,lightskyblue:8900346,lightslategray:7833753,lightslategrey:7833753,lightsteelblue:11584734,lightyellow:16777184,lime:65280,limegreen:3329330,linen:16445670,magenta:16711935,maroon:8388608,mediumaquamarine:6737322,mediumblue:205,mediumorchid:12211667,mediumpurple:9662683,mediumseagreen:3978097,mediumslateblue:8087790,mediumspringgreen:64154,mediumturquoise:4772300,mediumvioletred:13047173,midnightblue:1644912,mintcream:16121850,mistyrose:16770273,moccasin:16770229,navajowhite:16768685,navy:128,oldlace:16643558,olive:8421376,olivedrab:7048739,orange:16753920,orangered:16729344,orchid:14315734,palegoldenrod:15657130,palegreen:10025880,paleturquoise:11529966,palevioletred:14381203,papayawhip:16773077,peachpuff:16767673,peru:13468991,pink:16761035,plum:14524637,powderblue:11591910,purple:8388736,rebeccapurple:6697881,red:16711680,rosybrown:12357519,royalblue:4286945,saddlebrown:9127187,salmon:16416882,sandybrown:16032864,seagreen:3050327,seashell:16774638,sienna:10506797,silver:12632256,skyblue:8900331,slateblue:6970061,slategray:7372944,slategrey:7372944,snow:16775930,springgreen:65407,steelblue:4620980,tan:13808780,teal:32896,thistle:14204888,tomato:16737095,turquoise:4251856,violet:15631086,wheat:16113331,white:16777215,whitesmoke:16119285,yellow:16776960,yellowgreen:10145074},Mn={h:0,s:0,l:0},yn={h:0,s:0,l:0};function En(e,t,n){return n<0&&(n+=1),n>1&&(n-=1),n<1/6?e+6*(t-e)*n:n<.5?t:n<2/3?e+6*(t-e)*(2/3-n):e}class Sn{constructor(e,t,n){return this.isColor=!0,this.r=1,this.g=1,this.b=1,this.set(e,t,n)}set(e,t,n){if(void 0===t&&void 0===n){const t=e;t&&t.isColor?this.copy(t):"number"==typeof t?this.setHex(t):"string"==typeof t&&this.setStyle(t)}else this.setRGB(e,t,n);return this}setScalar(e){return this.r=e,this.g=e,this.b=e,this}setHex(e,t=re){return e=Math.floor(e),this.r=(e>>16&255)/255,this.g=(e>>8&255)/255,this.b=(255&e)/255,Ge.toWorkingColorSpace(this,t),this}setRGB(e,t,n,i=Ge.workingColorSpace){return this.r=e,this.g=t,this.b=n,Ge.toWorkingColorSpace(this,i),this}setHSL(e,t,n,i=Ge.workingColorSpace){if(e=Me(e,1),t=xe(t,0,1),n=xe(n,0,1),0===t)this.r=this.g=this.b=n;else{const i=n<=.5?n*(1+t):n+t-n*t,r=2*n-i;this.r=En(r,i,e+1/3),this.g=En(r,i,e),this.b=En(r,i,e-1/3)}return Ge.toWorkingColorSpace(this,i),this}setStyle(e,t=re){function n(t){void 0!==t&&parseFloat(t)<1&&console.warn("THREE.Color: Alpha component of "+e+" will be ignored.")}let i;if(i=/^(\w+)\(([^\)]*)\)/.exec(e)){let r;const a=i[1],s=i[2];switch(a){case"rgb":case"rgba":if(r=/^\s*(\d+)\s*,\s*(\d+)\s*,\s*(\d+)\s*(?:,\s*(\d*\.?\d+)\s*)?$/.exec(s))return n(r[4]),this.setRGB(Math.min(255,parseInt(r[1],10))/255,Math.min(255,parseInt(r[2],10))/255,Math.min(255,parseInt(r[3],10))/255,t);if(r=/^\s*(\d+)\%\s*,\s*(\d+)\%\s*,\s*(\d+)\%\s*(?:,\s*(\d*\.?\d+)\s*)?$/.exec(s))return n(r[4]),this.setRGB(Math.min(100,parseInt(r[1],10))/100,Math.min(100,parseInt(r[2],10))/100,Math.min(100,parseInt(r[3],10))/100,t);break;case"hsl":case"hsla":if(r=/^\s*(\d*\.?\d+)\s*,\s*(\d*\.?\d+)\%\s*,\s*(\d*\.?\d+)\%\s*(?:,\s*(\d*\.?\d+)\s*)?$/.exec(s))return n(r[4]),this.setHSL(parseFloat(r[1])/360,parseFloat(r[2])/100,parseFloat(r[3])/100,t);break;default:console.warn("THREE.Color: Unknown color model "+e)}}else if(i=/^\#([A-Fa-f\d]+)$/.exec(e)){const n=i[1],r=n.length;if(3===r)return this.setRGB(parseInt(n.charAt(0),16)/15,parseInt(n.charAt(1),16)/15,parseInt(n.charAt(2),16)/15,t);if(6===r)return this.setHex(parseInt(n,16),t);console.warn("THREE.Color: Invalid hex color "+e)}else if(e&&e.length>0)return this.setColorName(e,t);return this}setColorName(e,t=re){const n=xn[e.toLowerCase()];return void 0!==n?this.setHex(n,t):console.warn("THREE.Color: Unknown color "+e),this}clone(){return new this.constructor(this.r,this.g,this.b)}copy(e){return this.r=e.r,this.g=e.g,this.b=e.b,this}copySRGBToLinear(e){return this.r=Oe(e.r),this.g=Oe(e.g),this.b=Oe(e.b),this}copyLinearToSRGB(e){return this.r=Fe(e.r),this.g=Fe(e.g),this.b=Fe(e.b),this}convertSRGBToLinear(){return this.copySRGBToLinear(this),this}convertLinearToSRGB(){return this.copyLinearToSRGB(this),this}getHex(e=re){return Ge.fromWorkingColorSpace(Tn.copy(this),e),65536*Math.round(xe(255*Tn.r,0,255))+256*Math.round(xe(255*Tn.g,0,255))+Math.round(xe(255*Tn.b,0,255))}getHexString(e=re){return("000000"+this.getHex(e).toString(16)).slice(-6)}getHSL(e,t=Ge.workingColorSpace){Ge.fromWorkingColorSpace(Tn.copy(this),t);const n=Tn.r,i=Tn.g,r=Tn.b,a=Math.max(n,i,r),s=Math.min(n,i,r);let o,l;const c=(s+a)/2;if(s===a)o=0,l=0;else{const e=a-s;switch(l=c<=.5?e/(a+s):e/(2-a-s),a){case n:o=(i-r)/e+(i0&&(e.userData=this.userData),void 0!==this.parameters){const t=this.parameters;for(const n in t)void 0!==t[n]&&(e[n]=t[n]);return e}e.data={attributes:{}};const t=this.index;null!==t&&(e.data.index={type:t.array.constructor.name,array:Array.prototype.slice.call(t.array)});const n=this.attributes;for(const o in n){const t=n[o];e.data.attributes[o]=t.toJSON(e.data)}const i={};let r=!1;for(const o in this.morphAttributes){const t=this.morphAttributes[o],n=[];for(let i=0,r=t.length;i0&&(i[o]=n,r=!0)}r&&(e.data.morphAttributes=i,e.data.morphTargetsRelative=this.morphTargetsRelative);const a=this.groups;a.length>0&&(e.data.groups=JSON.parse(JSON.stringify(a)));const s=this.boundingSphere;return null!==s&&(e.data.boundingSphere={center:s.center.toArray(),radius:s.radius}),e}clone(){return(new this.constructor).copy(this)}copy(e){this.index=null,this.attributes={},this.morphAttributes={},this.groups=[],this.boundingBox=null,this.boundingSphere=null;const t={};this.name=e.name;const n=e.index;null!==n&&this.setIndex(n.clone(t));const i=e.attributes;for(const l in i){const e=i[l];this.setAttribute(l,e.clone(t))}const r=e.morphAttributes;for(const l in r){const e=[],n=r[l];for(let i=0,r=n.length;i0){const n=e[t[0]];if(void 0!==n){this.morphTargetInfluences=[],this.morphTargetDictionary={};for(let e=0,t=n.length;e(e.far-e.near)**2)return}Hn.copy(r).invert(),Vn.copy(e.ray).applyMatrix4(Hn),null!==n.boundingBox&&!1===Vn.intersectsBox(n.boundingBox)||this._computeIntersections(e,t,Vn)}}_computeIntersections(e,t,n){let i;const r=this.geometry,a=this.material,s=r.index,o=r.attributes.position,l=r.attributes.uv,c=r.attributes.uv1,u=r.attributes.normal,h=r.groups,d=r.drawRange;if(null!==s)if(Array.isArray(a))for(let p=0,f=h.length;pn.far?null:{distance:h,point:ni.clone(),object:e}}(e,t,n,i,Wn,Xn,jn,ti);if(d){r&&(Kn.fromBufferAttribute(r,o),Zn.fromBufferAttribute(r,l),Jn.fromBufferAttribute(r,h),d.uv=gn.getInterpolation(ti,Wn,Xn,jn,Kn,Zn,Jn,new Re)),a&&(Kn.fromBufferAttribute(a,o),Zn.fromBufferAttribute(a,l),Jn.fromBufferAttribute(a,h),d.uv1=gn.getInterpolation(ti,Wn,Xn,jn,Kn,Zn,Jn,new Re),d.uv2=d.uv1),s&&(Qn.fromBufferAttribute(s,o),$n.fromBufferAttribute(s,l),ei.fromBufferAttribute(s,h),d.normal=gn.getInterpolation(ti,Wn,Xn,jn,Qn,$n,ei,new nt),d.normal.dot(i.direction)>0&&d.normal.multiplyScalar(-1));const e={a:o,b:l,c:h,normal:new nt,materialIndex:0};gn.getNormal(Wn,Xn,jn,e.normal),d.face=e}return d}class ai extends zn{constructor(e=1,t=1,n=1,i=1,r=1,a=1){super(),this.type="BoxGeometry",this.parameters={width:e,height:t,depth:n,widthSegments:i,heightSegments:r,depthSegments:a};const s=this;i=Math.floor(i),r=Math.floor(r),a=Math.floor(a);const o=[],l=[],c=[],u=[];let h=0,d=0;function p(e,t,n,i,r,a,p,f,m,g,_){const v=a/m,x=p/g,M=a/2,y=p/2,E=f/2,S=m+1,T=g+1;let b=0,A=0;const w=new nt;for(let s=0;s0?1:-1,c.push(w.x,w.y,w.z),u.push(o/m),u.push(1-s/g),b+=1}}for(let s=0;s0&&(t.defines=this.defines),t.vertexShader=this.vertexShader,t.fragmentShader=this.fragmentShader,t.lights=this.lights,t.clipping=this.clipping;const n={};for(const i in this.extensions)!0===this.extensions[i]&&(n[i]=!0);return Object.keys(n).length>0&&(t.extensions=n),t}}class hi extends rn{constructor(){super(),this.isCamera=!0,this.type="Camera",this.matrixWorldInverse=new Ut,this.projectionMatrix=new Ut,this.projectionMatrixInverse=new Ut,this.coordinateSystem=he}copy(e,t){return super.copy(e,t),this.matrixWorldInverse.copy(e.matrixWorldInverse),this.projectionMatrix.copy(e.projectionMatrix),this.projectionMatrixInverse.copy(e.projectionMatrixInverse),this.coordinateSystem=e.coordinateSystem,this}getWorldDirection(e){this.updateWorldMatrix(!0,!1);const t=this.matrixWorld.elements;return e.set(-t[8],-t[9],-t[10]).normalize()}updateMatrixWorld(e){super.updateMatrixWorld(e),this.matrixWorldInverse.copy(this.matrixWorld).invert()}updateWorldMatrix(e,t){super.updateWorldMatrix(e,t),this.matrixWorldInverse.copy(this.matrixWorld).invert()}clone(){return(new this.constructor).copy(this)}}class di extends hi{constructor(e=50,t=1,n=.1,i=2e3){super(),this.isPerspectiveCamera=!0,this.type="PerspectiveCamera",this.fov=e,this.zoom=1,this.near=n,this.far=i,this.focus=10,this.aspect=t,this.view=null,this.filmGauge=35,this.filmOffset=0,this.updateProjectionMatrix()}copy(e,t){return super.copy(e,t),this.fov=e.fov,this.zoom=e.zoom,this.near=e.near,this.far=e.far,this.focus=e.focus,this.aspect=e.aspect,this.view=null===e.view?null:Object.assign({},e.view),this.filmGauge=e.filmGauge,this.filmOffset=e.filmOffset,this}setFocalLength(e){const t=.5*this.getFilmHeight()/e;this.fov=2*_e*Math.atan(t),this.updateProjectionMatrix()}getFocalLength(){const e=Math.tan(.5*ge*this.fov);return.5*this.getFilmHeight()/e}getEffectiveFOV(){return 2*_e*Math.atan(Math.tan(.5*ge*this.fov)/this.zoom)}getFilmWidth(){return this.filmGauge*Math.min(this.aspect,1)}getFilmHeight(){return this.filmGauge/Math.max(this.aspect,1)}setViewOffset(e,t,n,i,r,a){this.aspect=e/t,null===this.view&&(this.view={enabled:!0,fullWidth:1,fullHeight:1,offsetX:0,offsetY:0,width:1,height:1}),this.view.enabled=!0,this.view.fullWidth=e,this.view.fullHeight=t,this.view.offsetX=n,this.view.offsetY=i,this.view.width=r,this.view.height=a,this.updateProjectionMatrix()}clearViewOffset(){null!==this.view&&(this.view.enabled=!1),this.updateProjectionMatrix()}updateProjectionMatrix(){const e=this.near;let t=e*Math.tan(.5*ge*this.fov)/this.zoom,n=2*t,i=this.aspect*n,r=-.5*i;const a=this.view;if(null!==this.view&&this.view.enabled){const e=a.fullWidth,s=a.fullHeight;r+=a.offsetX*i/e,t-=a.offsetY*n/s,i*=a.width/e,n*=a.height/s}const s=this.filmOffset;0!==s&&(r+=e*s/this.getFilmWidth()),this.projectionMatrix.makePerspective(r,r+i,t,t-n,e,this.far,this.coordinateSystem),this.projectionMatrixInverse.copy(this.projectionMatrix).invert()}toJSON(e){const t=super.toJSON(e);return t.object.fov=this.fov,t.object.zoom=this.zoom,t.object.near=this.near,t.object.far=this.far,t.object.focus=this.focus,t.object.aspect=this.aspect,null!==this.view&&(t.object.view=Object.assign({},this.view)),t.object.filmGauge=this.filmGauge,t.object.filmOffset=this.filmOffset,t}}const pi=-90;class fi extends rn{constructor(e,t,n){super(),this.type="CubeCamera",this.renderTarget=n,this.coordinateSystem=null;const i=new di(pi,1,e,t);i.layers=this.layers,this.add(i);const r=new di(pi,1,e,t);r.layers=this.layers,this.add(r);const a=new di(pi,1,e,t);a.layers=this.layers,this.add(a);const s=new di(pi,1,e,t);s.layers=this.layers,this.add(s);const o=new di(pi,1,e,t);o.layers=this.layers,this.add(o);const l=new di(pi,1,e,t);l.layers=this.layers,this.add(l)}updateCoordinateSystem(){const e=this.coordinateSystem,t=this.children.concat(),[n,i,r,a,s,o]=t;for(const l of t)this.remove(l);if(e===he)n.up.set(0,1,0),n.lookAt(1,0,0),i.up.set(0,1,0),i.lookAt(-1,0,0),r.up.set(0,0,-1),r.lookAt(0,1,0),a.up.set(0,0,1),a.lookAt(0,-1,0),s.up.set(0,1,0),s.lookAt(0,0,1),o.up.set(0,1,0),o.lookAt(0,0,-1);else{if(e!==de)throw new Error("THREE.CubeCamera.updateCoordinateSystem(): Invalid coordinate system: "+e);n.up.set(0,-1,0),n.lookAt(-1,0,0),i.up.set(0,-1,0),i.lookAt(1,0,0),r.up.set(0,0,1),r.lookAt(0,1,0),a.up.set(0,0,-1),a.lookAt(0,-1,0),s.up.set(0,-1,0),s.lookAt(0,0,1),o.up.set(0,-1,0),o.lookAt(0,0,-1)}for(const l of t)this.add(l),l.updateMatrixWorld()}update(e,t){null===this.parent&&this.updateMatrixWorld();const n=this.renderTarget;this.coordinateSystem!==e.coordinateSystem&&(this.coordinateSystem=e.coordinateSystem,this.updateCoordinateSystem());const[i,r,a,s,o,l]=this.children,c=e.getRenderTarget(),u=e.xr.enabled;e.xr.enabled=!1;const h=n.texture.generateMipmaps;n.texture.generateMipmaps=!1,e.setRenderTarget(n,0),e.render(t,i),e.setRenderTarget(n,1),e.render(t,r),e.setRenderTarget(n,2),e.render(t,a),e.setRenderTarget(n,3),e.render(t,s),e.setRenderTarget(n,4),e.render(t,o),n.texture.generateMipmaps=h,e.setRenderTarget(n,5),e.render(t,l),e.setRenderTarget(c),e.xr.enabled=u,n.texture.needsPMREMUpdate=!0}}class mi extends Ke{constructor(e,t,n,i,r,a,s,o,l,c){super(e=void 0!==e?e:[],t=void 0!==t?t:E,n,i,r,a,s,o,l,c),this.isCubeTexture=!0,this.flipY=!1}get images(){return this.image}set images(e){this.image=e}}class gi extends Qe{constructor(e=1,t={}){super(e,e,t),this.isWebGLCubeRenderTarget=!0;const n={width:e,height:e,depth:1},i=[n,n,n,n,n,n];void 0!==t.encoding&&(Ne("THREE.WebGLCubeRenderTarget: option.encoding has been replaced by option.colorSpace."),t.colorSpace=t.encoding===ne?re:ie),this.texture=new mi(i,t.mapping,t.wrapS,t.wrapT,t.magFilter,t.minFilter,t.format,t.type,t.anisotropy,t.colorSpace),this.texture.isRenderTargetTexture=!0,this.texture.generateMipmaps=void 0!==t.generateMipmaps&&t.generateMipmaps,this.texture.minFilter=void 0!==t.minFilter?t.minFilter:D}fromEquirectangularTexture(e,t){this.texture.type=t.type,this.texture.colorSpace=t.colorSpace,this.texture.generateMipmaps=t.generateMipmaps,this.texture.minFilter=t.minFilter,this.texture.magFilter=t.magFilter;const n={uniforms:{tEquirect:{value:null}},vertexShader:"\n\n\t\t\t\tvarying vec3 vWorldDirection;\n\n\t\t\t\tvec3 transformDirection( in vec3 dir, in mat4 matrix ) {\n\n\t\t\t\t\treturn normalize( ( matrix * vec4( dir, 0.0 ) ).xyz );\n\n\t\t\t\t}\n\n\t\t\t\tvoid main() {\n\n\t\t\t\t\tvWorldDirection = transformDirection( position, modelMatrix );\n\n\t\t\t\t\t#include \n\t\t\t\t\t#include \n\n\t\t\t\t}\n\t\t\t",fragmentShader:"\n\n\t\t\t\tuniform sampler2D tEquirect;\n\n\t\t\t\tvarying vec3 vWorldDirection;\n\n\t\t\t\t#include \n\n\t\t\t\tvoid main() {\n\n\t\t\t\t\tvec3 direction = normalize( vWorldDirection );\n\n\t\t\t\t\tvec2 sampleUV = equirectUv( direction );\n\n\t\t\t\t\tgl_FragColor = texture2D( tEquirect, sampleUV );\n\n\t\t\t\t}\n\t\t\t"},i=new ai(5,5,5),r=new ui({name:"CubemapFromEquirect",uniforms:si(n.uniforms),vertexShader:n.vertexShader,fragmentShader:n.fragmentShader,side:u,blending:0});r.uniforms.tEquirect.value=t;const a=new ii(i,r),s=t.minFilter;t.minFilter===I&&(t.minFilter=D);return new fi(1,10,this).update(e,a),t.minFilter=s,a.geometry.dispose(),a.material.dispose(),this}clear(e,t,n,i){const r=e.getRenderTarget();for(let a=0;a<6;a++)e.setRenderTarget(this,a),e.clear(t,n,i);e.setRenderTarget(r)}}const _i=new nt,vi=new nt,xi=new Ce;class Mi{constructor(e=new nt(1,0,0),t=0){this.isPlane=!0,this.normal=e,this.constant=t}set(e,t){return this.normal.copy(e),this.constant=t,this}setComponents(e,t,n,i){return this.normal.set(e,t,n),this.constant=i,this}setFromNormalAndCoplanarPoint(e,t){return this.normal.copy(e),this.constant=-t.dot(this.normal),this}setFromCoplanarPoints(e,t,n){const i=_i.subVectors(n,t).cross(vi.subVectors(e,t)).normalize();return this.setFromNormalAndCoplanarPoint(i,e),this}copy(e){return this.normal.copy(e.normal),this.constant=e.constant,this}normalize(){const e=1/this.normal.length();return this.normal.multiplyScalar(e),this.constant*=e,this}negate(){return this.constant*=-1,this.normal.negate(),this}distanceToPoint(e){return this.normal.dot(e)+this.constant}distanceToSphere(e){return this.distanceToPoint(e.center)-e.radius}projectPoint(e,t){return t.copy(e).addScaledVector(this.normal,-this.distanceToPoint(e))}intersectLine(e,t){const n=e.delta(_i),i=this.normal.dot(n);if(0===i)return 0===this.distanceToPoint(e.start)?t.copy(e.start):null;const r=-(e.start.dot(this.normal)+this.constant)/i;return r<0||r>1?null:t.copy(e.start).addScaledVector(n,r)}intersectsLine(e){const t=this.distanceToPoint(e.start),n=this.distanceToPoint(e.end);return t<0&&n>0||n<0&&t>0}intersectsBox(e){return e.intersectsPlane(this)}intersectsSphere(e){return e.intersectsPlane(this)}coplanarPoint(e){return e.copy(this.normal).multiplyScalar(-this.constant)}applyMatrix4(e,t){const n=t||xi.getNormalMatrix(e),i=this.coplanarPoint(_i).applyMatrix4(e),r=this.normal.applyMatrix3(n).normalize();return this.constant=-i.dot(r),this}translate(e){return this.constant-=e.dot(this.normal),this}equals(e){return e.normal.equals(this.normal)&&e.constant===this.constant}clone(){return(new this.constructor).copy(this)}}const yi=new St,Ei=new nt;class Si{constructor(e=new Mi,t=new Mi,n=new Mi,i=new Mi,r=new Mi,a=new Mi){this.planes=[e,t,n,i,r,a]}set(e,t,n,i,r,a){const s=this.planes;return s[0].copy(e),s[1].copy(t),s[2].copy(n),s[3].copy(i),s[4].copy(r),s[5].copy(a),this}copy(e){const t=this.planes;for(let n=0;n<6;n++)t[n].copy(e.planes[n]);return this}setFromProjectionMatrix(e,t=2e3){const n=this.planes,i=e.elements,r=i[0],a=i[1],s=i[2],o=i[3],l=i[4],c=i[5],u=i[6],h=i[7],d=i[8],p=i[9],f=i[10],m=i[11],g=i[12],_=i[13],v=i[14],x=i[15];if(n[0].setComponents(o-r,h-l,m-d,x-g).normalize(),n[1].setComponents(o+r,h+l,m+d,x+g).normalize(),n[2].setComponents(o+a,h+c,m+p,x+_).normalize(),n[3].setComponents(o-a,h-c,m-p,x-_).normalize(),n[4].setComponents(o-s,h-u,m-f,x-v).normalize(),t===he)n[5].setComponents(o+s,h+u,m+f,x+v).normalize();else{if(t!==de)throw new Error("THREE.Frustum.setFromProjectionMatrix(): Invalid coordinate system: "+t);n[5].setComponents(s,u,f,v).normalize()}return this}intersectsObject(e){if(void 0!==e.boundingSphere)null===e.boundingSphere&&e.computeBoundingSphere(),yi.copy(e.boundingSphere).applyMatrix4(e.matrixWorld);else{const t=e.geometry;null===t.boundingSphere&&t.computeBoundingSphere(),yi.copy(t.boundingSphere).applyMatrix4(e.matrixWorld)}return this.intersectsSphere(yi)}intersectsSprite(e){return yi.center.set(0,0,0),yi.radius=.7071067811865476,yi.applyMatrix4(e.matrixWorld),this.intersectsSphere(yi)}intersectsSphere(e){const t=this.planes,n=e.center,i=-e.radius;for(let r=0;r<6;r++){if(t[r].distanceToPoint(n)0?e.max.x:e.min.x,Ei.y=i.normal.y>0?e.max.y:e.min.y,Ei.z=i.normal.z>0?e.max.z:e.min.z,i.distanceToPoint(Ei)<0)return!1}return!0}containsPoint(e){const t=this.planes;for(let n=0;n<6;n++)if(t[n].distanceToPoint(e)<0)return!1;return!0}clone(){return(new this.constructor).copy(this)}}function Ti(){let e=null,t=!1,n=null,i=null;function r(t,a){n(t,a),i=e.requestAnimationFrame(r)}return{start:function(){!0!==t&&null!==n&&(i=e.requestAnimationFrame(r),t=!0)},stop:function(){e.cancelAnimationFrame(i),t=!1},setAnimationLoop:function(e){n=e},setContext:function(t){e=t}}}function bi(e,t){const n=t.isWebGL2,i=new WeakMap;return{get:function(e){return e.isInterleavedBufferAttribute&&(e=e.data),i.get(e)},remove:function(t){t.isInterleavedBufferAttribute&&(t=t.data);const n=i.get(t);n&&(e.deleteBuffer(n.buffer),i.delete(t))},update:function(t,r){if(t.isGLBufferAttribute){const e=i.get(t);return void((!e||e.version 0\n\tvec4 plane;\n\t#pragma unroll_loop_start\n\tfor ( int i = 0; i < UNION_CLIPPING_PLANES; i ++ ) {\n\t\tplane = clippingPlanes[ i ];\n\t\tif ( dot( vClipPosition, plane.xyz ) > plane.w ) discard;\n\t}\n\t#pragma unroll_loop_end\n\t#if UNION_CLIPPING_PLANES < NUM_CLIPPING_PLANES\n\t\tbool clipped = true;\n\t\t#pragma unroll_loop_start\n\t\tfor ( int i = UNION_CLIPPING_PLANES; i < NUM_CLIPPING_PLANES; i ++ ) {\n\t\t\tplane = clippingPlanes[ i ];\n\t\t\tclipped = ( dot( vClipPosition, plane.xyz ) > plane.w ) && clipped;\n\t\t}\n\t\t#pragma unroll_loop_end\n\t\tif ( clipped ) discard;\n\t#endif\n#endif",clipping_planes_pars_fragment:"#if NUM_CLIPPING_PLANES > 0\n\tvarying vec3 vClipPosition;\n\tuniform vec4 clippingPlanes[ NUM_CLIPPING_PLANES ];\n#endif",clipping_planes_pars_vertex:"#if NUM_CLIPPING_PLANES > 0\n\tvarying vec3 vClipPosition;\n#endif",clipping_planes_vertex:"#if NUM_CLIPPING_PLANES > 0\n\tvClipPosition = - mvPosition.xyz;\n#endif",color_fragment:"#if defined( USE_COLOR_ALPHA )\n\tdiffuseColor *= vColor;\n#elif defined( USE_COLOR )\n\tdiffuseColor.rgb *= vColor;\n#endif",color_pars_fragment:"#if defined( USE_COLOR_ALPHA )\n\tvarying vec4 vColor;\n#elif defined( USE_COLOR )\n\tvarying vec3 vColor;\n#endif",color_pars_vertex:"#if defined( USE_COLOR_ALPHA )\n\tvarying vec4 vColor;\n#elif defined( USE_COLOR ) || defined( USE_INSTANCING_COLOR )\n\tvarying vec3 vColor;\n#endif",color_vertex:"#if defined( USE_COLOR_ALPHA )\n\tvColor = vec4( 1.0 );\n#elif defined( USE_COLOR ) || defined( USE_INSTANCING_COLOR )\n\tvColor = vec3( 1.0 );\n#endif\n#ifdef USE_COLOR\n\tvColor *= color;\n#endif\n#ifdef USE_INSTANCING_COLOR\n\tvColor.xyz *= instanceColor.xyz;\n#endif",common:"#define PI 3.141592653589793\n#define PI2 6.283185307179586\n#define PI_HALF 1.5707963267948966\n#define RECIPROCAL_PI 0.3183098861837907\n#define RECIPROCAL_PI2 0.15915494309189535\n#define EPSILON 1e-6\n#ifndef saturate\n#define saturate( a ) clamp( a, 0.0, 1.0 )\n#endif\n#define whiteComplement( a ) ( 1.0 - saturate( a ) )\nfloat pow2( const in float x ) { return x*x; }\nvec3 pow2( const in vec3 x ) { return x*x; }\nfloat pow3( const in float x ) { return x*x*x; }\nfloat pow4( const in float x ) { float x2 = x*x; return x2*x2; }\nfloat max3( const in vec3 v ) { return max( max( v.x, v.y ), v.z ); }\nfloat average( const in vec3 v ) { return dot( v, vec3( 0.3333333 ) ); }\nhighp float rand( const in vec2 uv ) {\n\tconst highp float a = 12.9898, b = 78.233, c = 43758.5453;\n\thighp float dt = dot( uv.xy, vec2( a,b ) ), sn = mod( dt, PI );\n\treturn fract( sin( sn ) * c );\n}\n#ifdef HIGH_PRECISION\n\tfloat precisionSafeLength( vec3 v ) { return length( v ); }\n#else\n\tfloat precisionSafeLength( vec3 v ) {\n\t\tfloat maxComponent = max3( abs( v ) );\n\t\treturn length( v / maxComponent ) * maxComponent;\n\t}\n#endif\nstruct IncidentLight {\n\tvec3 color;\n\tvec3 direction;\n\tbool visible;\n};\nstruct ReflectedLight {\n\tvec3 directDiffuse;\n\tvec3 directSpecular;\n\tvec3 indirectDiffuse;\n\tvec3 indirectSpecular;\n};\nstruct GeometricContext {\n\tvec3 position;\n\tvec3 normal;\n\tvec3 viewDir;\n#ifdef USE_CLEARCOAT\n\tvec3 clearcoatNormal;\n#endif\n};\n#ifdef USE_ALPHAHASH\n\tvarying vec3 vPosition;\n#endif\nvec3 transformDirection( in vec3 dir, in mat4 matrix ) {\n\treturn normalize( ( matrix * vec4( dir, 0.0 ) ).xyz );\n}\nvec3 inverseTransformDirection( in vec3 dir, in mat4 matrix ) {\n\treturn normalize( ( vec4( dir, 0.0 ) * matrix ).xyz );\n}\nmat3 transposeMat3( const in mat3 m ) {\n\tmat3 tmp;\n\ttmp[ 0 ] = vec3( m[ 0 ].x, m[ 1 ].x, m[ 2 ].x );\n\ttmp[ 1 ] = vec3( m[ 0 ].y, m[ 1 ].y, m[ 2 ].y );\n\ttmp[ 2 ] = vec3( m[ 0 ].z, m[ 1 ].z, m[ 2 ].z );\n\treturn tmp;\n}\nfloat luminance( const in vec3 rgb ) {\n\tconst vec3 weights = vec3( 0.2126729, 0.7151522, 0.0721750 );\n\treturn dot( weights, rgb );\n}\nbool isPerspectiveMatrix( mat4 m ) {\n\treturn m[ 2 ][ 3 ] == - 1.0;\n}\nvec2 equirectUv( in vec3 dir ) {\n\tfloat u = atan( dir.z, dir.x ) * RECIPROCAL_PI2 + 0.5;\n\tfloat v = asin( clamp( dir.y, - 1.0, 1.0 ) ) * RECIPROCAL_PI + 0.5;\n\treturn vec2( u, v );\n}\nvec3 BRDF_Lambert( const in vec3 diffuseColor ) {\n\treturn RECIPROCAL_PI * diffuseColor;\n}\nvec3 F_Schlick( const in vec3 f0, const in float f90, const in float dotVH ) {\n\tfloat fresnel = exp2( ( - 5.55473 * dotVH - 6.98316 ) * dotVH );\n\treturn f0 * ( 1.0 - fresnel ) + ( f90 * fresnel );\n}\nfloat F_Schlick( const in float f0, const in float f90, const in float dotVH ) {\n\tfloat fresnel = exp2( ( - 5.55473 * dotVH - 6.98316 ) * dotVH );\n\treturn f0 * ( 1.0 - fresnel ) + ( f90 * fresnel );\n} // validated",cube_uv_reflection_fragment:"#ifdef ENVMAP_TYPE_CUBE_UV\n\t#define cubeUV_minMipLevel 4.0\n\t#define cubeUV_minTileSize 16.0\n\tfloat getFace( vec3 direction ) {\n\t\tvec3 absDirection = abs( direction );\n\t\tfloat face = - 1.0;\n\t\tif ( absDirection.x > absDirection.z ) {\n\t\t\tif ( absDirection.x > absDirection.y )\n\t\t\t\tface = direction.x > 0.0 ? 0.0 : 3.0;\n\t\t\telse\n\t\t\t\tface = direction.y > 0.0 ? 1.0 : 4.0;\n\t\t} else {\n\t\t\tif ( absDirection.z > absDirection.y )\n\t\t\t\tface = direction.z > 0.0 ? 2.0 : 5.0;\n\t\t\telse\n\t\t\t\tface = direction.y > 0.0 ? 1.0 : 4.0;\n\t\t}\n\t\treturn face;\n\t}\n\tvec2 getUV( vec3 direction, float face ) {\n\t\tvec2 uv;\n\t\tif ( face == 0.0 ) {\n\t\t\tuv = vec2( direction.z, direction.y ) / abs( direction.x );\n\t\t} else if ( face == 1.0 ) {\n\t\t\tuv = vec2( - direction.x, - direction.z ) / abs( direction.y );\n\t\t} else if ( face == 2.0 ) {\n\t\t\tuv = vec2( - direction.x, direction.y ) / abs( direction.z );\n\t\t} else if ( face == 3.0 ) {\n\t\t\tuv = vec2( - direction.z, direction.y ) / abs( direction.x );\n\t\t} else if ( face == 4.0 ) {\n\t\t\tuv = vec2( - direction.x, direction.z ) / abs( direction.y );\n\t\t} else {\n\t\t\tuv = vec2( direction.x, direction.y ) / abs( direction.z );\n\t\t}\n\t\treturn 0.5 * ( uv + 1.0 );\n\t}\n\tvec3 bilinearCubeUV( sampler2D envMap, vec3 direction, float mipInt ) {\n\t\tfloat face = getFace( direction );\n\t\tfloat filterInt = max( cubeUV_minMipLevel - mipInt, 0.0 );\n\t\tmipInt = max( mipInt, cubeUV_minMipLevel );\n\t\tfloat faceSize = exp2( mipInt );\n\t\thighp vec2 uv = getUV( direction, face ) * ( faceSize - 2.0 ) + 1.0;\n\t\tif ( face > 2.0 ) {\n\t\t\tuv.y += faceSize;\n\t\t\tface -= 3.0;\n\t\t}\n\t\tuv.x += face * faceSize;\n\t\tuv.x += filterInt * 3.0 * cubeUV_minTileSize;\n\t\tuv.y += 4.0 * ( exp2( CUBEUV_MAX_MIP ) - faceSize );\n\t\tuv.x *= CUBEUV_TEXEL_WIDTH;\n\t\tuv.y *= CUBEUV_TEXEL_HEIGHT;\n\t\t#ifdef texture2DGradEXT\n\t\t\treturn texture2DGradEXT( envMap, uv, vec2( 0.0 ), vec2( 0.0 ) ).rgb;\n\t\t#else\n\t\t\treturn texture2D( envMap, uv ).rgb;\n\t\t#endif\n\t}\n\t#define cubeUV_r0 1.0\n\t#define cubeUV_v0 0.339\n\t#define cubeUV_m0 - 2.0\n\t#define cubeUV_r1 0.8\n\t#define cubeUV_v1 0.276\n\t#define cubeUV_m1 - 1.0\n\t#define cubeUV_r4 0.4\n\t#define cubeUV_v4 0.046\n\t#define cubeUV_m4 2.0\n\t#define cubeUV_r5 0.305\n\t#define cubeUV_v5 0.016\n\t#define cubeUV_m5 3.0\n\t#define cubeUV_r6 0.21\n\t#define cubeUV_v6 0.0038\n\t#define cubeUV_m6 4.0\n\tfloat roughnessToMip( float roughness ) {\n\t\tfloat mip = 0.0;\n\t\tif ( roughness >= cubeUV_r1 ) {\n\t\t\tmip = ( cubeUV_r0 - roughness ) * ( cubeUV_m1 - cubeUV_m0 ) / ( cubeUV_r0 - cubeUV_r1 ) + cubeUV_m0;\n\t\t} else if ( roughness >= cubeUV_r4 ) {\n\t\t\tmip = ( cubeUV_r1 - roughness ) * ( cubeUV_m4 - cubeUV_m1 ) / ( cubeUV_r1 - cubeUV_r4 ) + cubeUV_m1;\n\t\t} else if ( roughness >= cubeUV_r5 ) {\n\t\t\tmip = ( cubeUV_r4 - roughness ) * ( cubeUV_m5 - cubeUV_m4 ) / ( cubeUV_r4 - cubeUV_r5 ) + cubeUV_m4;\n\t\t} else if ( roughness >= cubeUV_r6 ) {\n\t\t\tmip = ( cubeUV_r5 - roughness ) * ( cubeUV_m6 - cubeUV_m5 ) / ( cubeUV_r5 - cubeUV_r6 ) + cubeUV_m5;\n\t\t} else {\n\t\t\tmip = - 2.0 * log2( 1.16 * roughness );\t\t}\n\t\treturn mip;\n\t}\n\tvec4 textureCubeUV( sampler2D envMap, vec3 sampleDir, float roughness ) {\n\t\tfloat mip = clamp( roughnessToMip( roughness ), cubeUV_m0, CUBEUV_MAX_MIP );\n\t\tfloat mipF = fract( mip );\n\t\tfloat mipInt = floor( mip );\n\t\tvec3 color0 = bilinearCubeUV( envMap, sampleDir, mipInt );\n\t\tif ( mipF == 0.0 ) {\n\t\t\treturn vec4( color0, 1.0 );\n\t\t} else {\n\t\t\tvec3 color1 = bilinearCubeUV( envMap, sampleDir, mipInt + 1.0 );\n\t\t\treturn vec4( mix( color0, color1, mipF ), 1.0 );\n\t\t}\n\t}\n#endif",defaultnormal_vertex:"vec3 transformedNormal = objectNormal;\n#ifdef USE_INSTANCING\n\tmat3 m = mat3( instanceMatrix );\n\ttransformedNormal /= vec3( dot( m[ 0 ], m[ 0 ] ), dot( m[ 1 ], m[ 1 ] ), dot( m[ 2 ], m[ 2 ] ) );\n\ttransformedNormal = m * transformedNormal;\n#endif\ntransformedNormal = normalMatrix * transformedNormal;\n#ifdef FLIP_SIDED\n\ttransformedNormal = - transformedNormal;\n#endif\n#ifdef USE_TANGENT\n\tvec3 transformedTangent = ( modelViewMatrix * vec4( objectTangent, 0.0 ) ).xyz;\n\t#ifdef FLIP_SIDED\n\t\ttransformedTangent = - transformedTangent;\n\t#endif\n#endif",displacementmap_pars_vertex:"#ifdef USE_DISPLACEMENTMAP\n\tuniform sampler2D displacementMap;\n\tuniform float displacementScale;\n\tuniform float displacementBias;\n#endif",displacementmap_vertex:"#ifdef USE_DISPLACEMENTMAP\n\ttransformed += normalize( objectNormal ) * ( texture2D( displacementMap, vDisplacementMapUv ).x * displacementScale + displacementBias );\n#endif",emissivemap_fragment:"#ifdef USE_EMISSIVEMAP\n\tvec4 emissiveColor = texture2D( emissiveMap, vEmissiveMapUv );\n\ttotalEmissiveRadiance *= emissiveColor.rgb;\n#endif",emissivemap_pars_fragment:"#ifdef USE_EMISSIVEMAP\n\tuniform sampler2D emissiveMap;\n#endif",colorspace_fragment:"gl_FragColor = linearToOutputTexel( gl_FragColor );",colorspace_pars_fragment:"vec4 LinearToLinear( in vec4 value ) {\n\treturn value;\n}\nvec4 LinearTosRGB( in vec4 value ) {\n\treturn vec4( mix( pow( value.rgb, vec3( 0.41666 ) ) * 1.055 - vec3( 0.055 ), value.rgb * 12.92, vec3( lessThanEqual( value.rgb, vec3( 0.0031308 ) ) ) ), value.a );\n}",envmap_fragment:"#ifdef USE_ENVMAP\n\t#ifdef ENV_WORLDPOS\n\t\tvec3 cameraToFrag;\n\t\tif ( isOrthographic ) {\n\t\t\tcameraToFrag = normalize( vec3( - viewMatrix[ 0 ][ 2 ], - viewMatrix[ 1 ][ 2 ], - viewMatrix[ 2 ][ 2 ] ) );\n\t\t} else {\n\t\t\tcameraToFrag = normalize( vWorldPosition - cameraPosition );\n\t\t}\n\t\tvec3 worldNormal = inverseTransformDirection( normal, viewMatrix );\n\t\t#ifdef ENVMAP_MODE_REFLECTION\n\t\t\tvec3 reflectVec = reflect( cameraToFrag, worldNormal );\n\t\t#else\n\t\t\tvec3 reflectVec = refract( cameraToFrag, worldNormal, refractionRatio );\n\t\t#endif\n\t#else\n\t\tvec3 reflectVec = vReflect;\n\t#endif\n\t#ifdef ENVMAP_TYPE_CUBE\n\t\tvec4 envColor = textureCube( envMap, vec3( flipEnvMap * reflectVec.x, reflectVec.yz ) );\n\t#else\n\t\tvec4 envColor = vec4( 0.0 );\n\t#endif\n\t#ifdef ENVMAP_BLENDING_MULTIPLY\n\t\toutgoingLight = mix( outgoingLight, outgoingLight * envColor.xyz, specularStrength * reflectivity );\n\t#elif defined( ENVMAP_BLENDING_MIX )\n\t\toutgoingLight = mix( outgoingLight, envColor.xyz, specularStrength * reflectivity );\n\t#elif defined( ENVMAP_BLENDING_ADD )\n\t\toutgoingLight += envColor.xyz * specularStrength * reflectivity;\n\t#endif\n#endif",envmap_common_pars_fragment:"#ifdef USE_ENVMAP\n\tuniform float envMapIntensity;\n\tuniform float flipEnvMap;\n\t#ifdef ENVMAP_TYPE_CUBE\n\t\tuniform samplerCube envMap;\n\t#else\n\t\tuniform sampler2D envMap;\n\t#endif\n\t\n#endif",envmap_pars_fragment:"#ifdef USE_ENVMAP\n\tuniform float reflectivity;\n\t#if defined( USE_BUMPMAP ) || defined( USE_NORMALMAP ) || defined( PHONG ) || defined( LAMBERT )\n\t\t#define ENV_WORLDPOS\n\t#endif\n\t#ifdef ENV_WORLDPOS\n\t\tvarying vec3 vWorldPosition;\n\t\tuniform float refractionRatio;\n\t#else\n\t\tvarying vec3 vReflect;\n\t#endif\n#endif",envmap_pars_vertex:"#ifdef USE_ENVMAP\n\t#if defined( USE_BUMPMAP ) || defined( USE_NORMALMAP ) || defined( PHONG ) || defined( LAMBERT )\n\t\t#define ENV_WORLDPOS\n\t#endif\n\t#ifdef ENV_WORLDPOS\n\t\t\n\t\tvarying vec3 vWorldPosition;\n\t#else\n\t\tvarying vec3 vReflect;\n\t\tuniform float refractionRatio;\n\t#endif\n#endif",envmap_physical_pars_fragment:"#ifdef USE_ENVMAP\n\tvec3 getIBLIrradiance( const in vec3 normal ) {\n\t\t#ifdef ENVMAP_TYPE_CUBE_UV\n\t\t\tvec3 worldNormal = inverseTransformDirection( normal, viewMatrix );\n\t\t\tvec4 envMapColor = textureCubeUV( envMap, worldNormal, 1.0 );\n\t\t\treturn PI * envMapColor.rgb * envMapIntensity;\n\t\t#else\n\t\t\treturn vec3( 0.0 );\n\t\t#endif\n\t}\n\tvec3 getIBLRadiance( const in vec3 viewDir, const in vec3 normal, const in float roughness ) {\n\t\t#ifdef ENVMAP_TYPE_CUBE_UV\n\t\t\tvec3 reflectVec = reflect( - viewDir, normal );\n\t\t\treflectVec = normalize( mix( reflectVec, normal, roughness * roughness) );\n\t\t\treflectVec = inverseTransformDirection( reflectVec, viewMatrix );\n\t\t\tvec4 envMapColor = textureCubeUV( envMap, reflectVec, roughness );\n\t\t\treturn envMapColor.rgb * envMapIntensity;\n\t\t#else\n\t\t\treturn vec3( 0.0 );\n\t\t#endif\n\t}\n\t#ifdef USE_ANISOTROPY\n\t\tvec3 getIBLAnisotropyRadiance( const in vec3 viewDir, const in vec3 normal, const in float roughness, const in vec3 bitangent, const in float anisotropy ) {\n\t\t\t#ifdef ENVMAP_TYPE_CUBE_UV\n\t\t\t\tvec3 bentNormal = cross( bitangent, viewDir );\n\t\t\t\tbentNormal = normalize( cross( bentNormal, bitangent ) );\n\t\t\t\tbentNormal = normalize( mix( bentNormal, normal, pow2( pow2( 1.0 - anisotropy * ( 1.0 - roughness ) ) ) ) );\n\t\t\t\treturn getIBLRadiance( viewDir, bentNormal, roughness );\n\t\t\t#else\n\t\t\t\treturn vec3( 0.0 );\n\t\t\t#endif\n\t\t}\n\t#endif\n#endif",envmap_vertex:"#ifdef USE_ENVMAP\n\t#ifdef ENV_WORLDPOS\n\t\tvWorldPosition = worldPosition.xyz;\n\t#else\n\t\tvec3 cameraToVertex;\n\t\tif ( isOrthographic ) {\n\t\t\tcameraToVertex = normalize( vec3( - viewMatrix[ 0 ][ 2 ], - viewMatrix[ 1 ][ 2 ], - viewMatrix[ 2 ][ 2 ] ) );\n\t\t} else {\n\t\t\tcameraToVertex = normalize( worldPosition.xyz - cameraPosition );\n\t\t}\n\t\tvec3 worldNormal = inverseTransformDirection( transformedNormal, viewMatrix );\n\t\t#ifdef ENVMAP_MODE_REFLECTION\n\t\t\tvReflect = reflect( cameraToVertex, worldNormal );\n\t\t#else\n\t\t\tvReflect = refract( cameraToVertex, worldNormal, refractionRatio );\n\t\t#endif\n\t#endif\n#endif",fog_vertex:"#ifdef USE_FOG\n\tvFogDepth = - mvPosition.z;\n#endif",fog_pars_vertex:"#ifdef USE_FOG\n\tvarying float vFogDepth;\n#endif",fog_fragment:"#ifdef USE_FOG\n\t#ifdef FOG_EXP2\n\t\tfloat fogFactor = 1.0 - exp( - fogDensity * fogDensity * vFogDepth * vFogDepth );\n\t#else\n\t\tfloat fogFactor = smoothstep( fogNear, fogFar, vFogDepth );\n\t#endif\n\tgl_FragColor.rgb = mix( gl_FragColor.rgb, fogColor, fogFactor );\n#endif",fog_pars_fragment:"#ifdef USE_FOG\n\tuniform vec3 fogColor;\n\tvarying float vFogDepth;\n\t#ifdef FOG_EXP2\n\t\tuniform float fogDensity;\n\t#else\n\t\tuniform float fogNear;\n\t\tuniform float fogFar;\n\t#endif\n#endif",gradientmap_pars_fragment:"#ifdef USE_GRADIENTMAP\n\tuniform sampler2D gradientMap;\n#endif\nvec3 getGradientIrradiance( vec3 normal, vec3 lightDirection ) {\n\tfloat dotNL = dot( normal, lightDirection );\n\tvec2 coord = vec2( dotNL * 0.5 + 0.5, 0.0 );\n\t#ifdef USE_GRADIENTMAP\n\t\treturn vec3( texture2D( gradientMap, coord ).r );\n\t#else\n\t\tvec2 fw = fwidth( coord ) * 0.5;\n\t\treturn mix( vec3( 0.7 ), vec3( 1.0 ), smoothstep( 0.7 - fw.x, 0.7 + fw.x, coord.x ) );\n\t#endif\n}",lightmap_fragment:"#ifdef USE_LIGHTMAP\n\tvec4 lightMapTexel = texture2D( lightMap, vLightMapUv );\n\tvec3 lightMapIrradiance = lightMapTexel.rgb * lightMapIntensity;\n\treflectedLight.indirectDiffuse += lightMapIrradiance;\n#endif",lightmap_pars_fragment:"#ifdef USE_LIGHTMAP\n\tuniform sampler2D lightMap;\n\tuniform float lightMapIntensity;\n#endif",lights_lambert_fragment:"LambertMaterial material;\nmaterial.diffuseColor = diffuseColor.rgb;\nmaterial.specularStrength = specularStrength;",lights_lambert_pars_fragment:"varying vec3 vViewPosition;\nstruct LambertMaterial {\n\tvec3 diffuseColor;\n\tfloat specularStrength;\n};\nvoid RE_Direct_Lambert( const in IncidentLight directLight, const in GeometricContext geometry, const in LambertMaterial material, inout ReflectedLight reflectedLight ) {\n\tfloat dotNL = saturate( dot( geometry.normal, directLight.direction ) );\n\tvec3 irradiance = dotNL * directLight.color;\n\treflectedLight.directDiffuse += irradiance * BRDF_Lambert( material.diffuseColor );\n}\nvoid RE_IndirectDiffuse_Lambert( const in vec3 irradiance, const in GeometricContext geometry, const in LambertMaterial material, inout ReflectedLight reflectedLight ) {\n\treflectedLight.indirectDiffuse += irradiance * BRDF_Lambert( material.diffuseColor );\n}\n#define RE_Direct\t\t\t\tRE_Direct_Lambert\n#define RE_IndirectDiffuse\t\tRE_IndirectDiffuse_Lambert",lights_pars_begin:"uniform bool receiveShadow;\nuniform vec3 ambientLightColor;\nuniform vec3 lightProbe[ 9 ];\nvec3 shGetIrradianceAt( in vec3 normal, in vec3 shCoefficients[ 9 ] ) {\n\tfloat x = normal.x, y = normal.y, z = normal.z;\n\tvec3 result = shCoefficients[ 0 ] * 0.886227;\n\tresult += shCoefficients[ 1 ] * 2.0 * 0.511664 * y;\n\tresult += shCoefficients[ 2 ] * 2.0 * 0.511664 * z;\n\tresult += shCoefficients[ 3 ] * 2.0 * 0.511664 * x;\n\tresult += shCoefficients[ 4 ] * 2.0 * 0.429043 * x * y;\n\tresult += shCoefficients[ 5 ] * 2.0 * 0.429043 * y * z;\n\tresult += shCoefficients[ 6 ] * ( 0.743125 * z * z - 0.247708 );\n\tresult += shCoefficients[ 7 ] * 2.0 * 0.429043 * x * z;\n\tresult += shCoefficients[ 8 ] * 0.429043 * ( x * x - y * y );\n\treturn result;\n}\nvec3 getLightProbeIrradiance( const in vec3 lightProbe[ 9 ], const in vec3 normal ) {\n\tvec3 worldNormal = inverseTransformDirection( normal, viewMatrix );\n\tvec3 irradiance = shGetIrradianceAt( worldNormal, lightProbe );\n\treturn irradiance;\n}\nvec3 getAmbientLightIrradiance( const in vec3 ambientLightColor ) {\n\tvec3 irradiance = ambientLightColor;\n\treturn irradiance;\n}\nfloat getDistanceAttenuation( const in float lightDistance, const in float cutoffDistance, const in float decayExponent ) {\n\t#if defined ( LEGACY_LIGHTS )\n\t\tif ( cutoffDistance > 0.0 && decayExponent > 0.0 ) {\n\t\t\treturn pow( saturate( - lightDistance / cutoffDistance + 1.0 ), decayExponent );\n\t\t}\n\t\treturn 1.0;\n\t#else\n\t\tfloat distanceFalloff = 1.0 / max( pow( lightDistance, decayExponent ), 0.01 );\n\t\tif ( cutoffDistance > 0.0 ) {\n\t\t\tdistanceFalloff *= pow2( saturate( 1.0 - pow4( lightDistance / cutoffDistance ) ) );\n\t\t}\n\t\treturn distanceFalloff;\n\t#endif\n}\nfloat getSpotAttenuation( const in float coneCosine, const in float penumbraCosine, const in float angleCosine ) {\n\treturn smoothstep( coneCosine, penumbraCosine, angleCosine );\n}\n#if NUM_DIR_LIGHTS > 0\n\tstruct DirectionalLight {\n\t\tvec3 direction;\n\t\tvec3 color;\n\t};\n\tuniform DirectionalLight directionalLights[ NUM_DIR_LIGHTS ];\n\tvoid getDirectionalLightInfo( const in DirectionalLight directionalLight, const in GeometricContext geometry, out IncidentLight light ) {\n\t\tlight.color = directionalLight.color;\n\t\tlight.direction = directionalLight.direction;\n\t\tlight.visible = true;\n\t}\n#endif\n#if NUM_POINT_LIGHTS > 0\n\tstruct PointLight {\n\t\tvec3 position;\n\t\tvec3 color;\n\t\tfloat distance;\n\t\tfloat decay;\n\t};\n\tuniform PointLight pointLights[ NUM_POINT_LIGHTS ];\n\tvoid getPointLightInfo( const in PointLight pointLight, const in GeometricContext geometry, out IncidentLight light ) {\n\t\tvec3 lVector = pointLight.position - geometry.position;\n\t\tlight.direction = normalize( lVector );\n\t\tfloat lightDistance = length( lVector );\n\t\tlight.color = pointLight.color;\n\t\tlight.color *= getDistanceAttenuation( lightDistance, pointLight.distance, pointLight.decay );\n\t\tlight.visible = ( light.color != vec3( 0.0 ) );\n\t}\n#endif\n#if NUM_SPOT_LIGHTS > 0\n\tstruct SpotLight {\n\t\tvec3 position;\n\t\tvec3 direction;\n\t\tvec3 color;\n\t\tfloat distance;\n\t\tfloat decay;\n\t\tfloat coneCos;\n\t\tfloat penumbraCos;\n\t};\n\tuniform SpotLight spotLights[ NUM_SPOT_LIGHTS ];\n\tvoid getSpotLightInfo( const in SpotLight spotLight, const in GeometricContext geometry, out IncidentLight light ) {\n\t\tvec3 lVector = spotLight.position - geometry.position;\n\t\tlight.direction = normalize( lVector );\n\t\tfloat angleCos = dot( light.direction, spotLight.direction );\n\t\tfloat spotAttenuation = getSpotAttenuation( spotLight.coneCos, spotLight.penumbraCos, angleCos );\n\t\tif ( spotAttenuation > 0.0 ) {\n\t\t\tfloat lightDistance = length( lVector );\n\t\t\tlight.color = spotLight.color * spotAttenuation;\n\t\t\tlight.color *= getDistanceAttenuation( lightDistance, spotLight.distance, spotLight.decay );\n\t\t\tlight.visible = ( light.color != vec3( 0.0 ) );\n\t\t} else {\n\t\t\tlight.color = vec3( 0.0 );\n\t\t\tlight.visible = false;\n\t\t}\n\t}\n#endif\n#if NUM_RECT_AREA_LIGHTS > 0\n\tstruct RectAreaLight {\n\t\tvec3 color;\n\t\tvec3 position;\n\t\tvec3 halfWidth;\n\t\tvec3 halfHeight;\n\t};\n\tuniform sampler2D ltc_1;\tuniform sampler2D ltc_2;\n\tuniform RectAreaLight rectAreaLights[ NUM_RECT_AREA_LIGHTS ];\n#endif\n#if NUM_HEMI_LIGHTS > 0\n\tstruct HemisphereLight {\n\t\tvec3 direction;\n\t\tvec3 skyColor;\n\t\tvec3 groundColor;\n\t};\n\tuniform HemisphereLight hemisphereLights[ NUM_HEMI_LIGHTS ];\n\tvec3 getHemisphereLightIrradiance( const in HemisphereLight hemiLight, const in vec3 normal ) {\n\t\tfloat dotNL = dot( normal, hemiLight.direction );\n\t\tfloat hemiDiffuseWeight = 0.5 * dotNL + 0.5;\n\t\tvec3 irradiance = mix( hemiLight.groundColor, hemiLight.skyColor, hemiDiffuseWeight );\n\t\treturn irradiance;\n\t}\n#endif",lights_toon_fragment:"ToonMaterial material;\nmaterial.diffuseColor = diffuseColor.rgb;",lights_toon_pars_fragment:"varying vec3 vViewPosition;\nstruct ToonMaterial {\n\tvec3 diffuseColor;\n};\nvoid RE_Direct_Toon( const in IncidentLight directLight, const in GeometricContext geometry, const in ToonMaterial material, inout ReflectedLight reflectedLight ) {\n\tvec3 irradiance = getGradientIrradiance( geometry.normal, directLight.direction ) * directLight.color;\n\treflectedLight.directDiffuse += irradiance * BRDF_Lambert( material.diffuseColor );\n}\nvoid RE_IndirectDiffuse_Toon( const in vec3 irradiance, const in GeometricContext geometry, const in ToonMaterial material, inout ReflectedLight reflectedLight ) {\n\treflectedLight.indirectDiffuse += irradiance * BRDF_Lambert( material.diffuseColor );\n}\n#define RE_Direct\t\t\t\tRE_Direct_Toon\n#define RE_IndirectDiffuse\t\tRE_IndirectDiffuse_Toon",lights_phong_fragment:"BlinnPhongMaterial material;\nmaterial.diffuseColor = diffuseColor.rgb;\nmaterial.specularColor = specular;\nmaterial.specularShininess = shininess;\nmaterial.specularStrength = specularStrength;",lights_phong_pars_fragment:"varying vec3 vViewPosition;\nstruct BlinnPhongMaterial {\n\tvec3 diffuseColor;\n\tvec3 specularColor;\n\tfloat specularShininess;\n\tfloat specularStrength;\n};\nvoid RE_Direct_BlinnPhong( const in IncidentLight directLight, const in GeometricContext geometry, const in BlinnPhongMaterial material, inout ReflectedLight reflectedLight ) {\n\tfloat dotNL = saturate( dot( geometry.normal, directLight.direction ) );\n\tvec3 irradiance = dotNL * directLight.color;\n\treflectedLight.directDiffuse += irradiance * BRDF_Lambert( material.diffuseColor );\n\treflectedLight.directSpecular += irradiance * BRDF_BlinnPhong( directLight.direction, geometry.viewDir, geometry.normal, material.specularColor, material.specularShininess ) * material.specularStrength;\n}\nvoid RE_IndirectDiffuse_BlinnPhong( const in vec3 irradiance, const in GeometricContext geometry, const in BlinnPhongMaterial material, inout ReflectedLight reflectedLight ) {\n\treflectedLight.indirectDiffuse += irradiance * BRDF_Lambert( material.diffuseColor );\n}\n#define RE_Direct\t\t\t\tRE_Direct_BlinnPhong\n#define RE_IndirectDiffuse\t\tRE_IndirectDiffuse_BlinnPhong",lights_physical_fragment:"PhysicalMaterial material;\nmaterial.diffuseColor = diffuseColor.rgb * ( 1.0 - metalnessFactor );\nvec3 dxy = max( abs( dFdx( geometryNormal ) ), abs( dFdy( geometryNormal ) ) );\nfloat geometryRoughness = max( max( dxy.x, dxy.y ), dxy.z );\nmaterial.roughness = max( roughnessFactor, 0.0525 );material.roughness += geometryRoughness;\nmaterial.roughness = min( material.roughness, 1.0 );\n#ifdef IOR\n\tmaterial.ior = ior;\n\t#ifdef USE_SPECULAR\n\t\tfloat specularIntensityFactor = specularIntensity;\n\t\tvec3 specularColorFactor = specularColor;\n\t\t#ifdef USE_SPECULAR_COLORMAP\n\t\t\tspecularColorFactor *= texture2D( specularColorMap, vSpecularColorMapUv ).rgb;\n\t\t#endif\n\t\t#ifdef USE_SPECULAR_INTENSITYMAP\n\t\t\tspecularIntensityFactor *= texture2D( specularIntensityMap, vSpecularIntensityMapUv ).a;\n\t\t#endif\n\t\tmaterial.specularF90 = mix( specularIntensityFactor, 1.0, metalnessFactor );\n\t#else\n\t\tfloat specularIntensityFactor = 1.0;\n\t\tvec3 specularColorFactor = vec3( 1.0 );\n\t\tmaterial.specularF90 = 1.0;\n\t#endif\n\tmaterial.specularColor = mix( min( pow2( ( material.ior - 1.0 ) / ( material.ior + 1.0 ) ) * specularColorFactor, vec3( 1.0 ) ) * specularIntensityFactor, diffuseColor.rgb, metalnessFactor );\n#else\n\tmaterial.specularColor = mix( vec3( 0.04 ), diffuseColor.rgb, metalnessFactor );\n\tmaterial.specularF90 = 1.0;\n#endif\n#ifdef USE_CLEARCOAT\n\tmaterial.clearcoat = clearcoat;\n\tmaterial.clearcoatRoughness = clearcoatRoughness;\n\tmaterial.clearcoatF0 = vec3( 0.04 );\n\tmaterial.clearcoatF90 = 1.0;\n\t#ifdef USE_CLEARCOATMAP\n\t\tmaterial.clearcoat *= texture2D( clearcoatMap, vClearcoatMapUv ).x;\n\t#endif\n\t#ifdef USE_CLEARCOAT_ROUGHNESSMAP\n\t\tmaterial.clearcoatRoughness *= texture2D( clearcoatRoughnessMap, vClearcoatRoughnessMapUv ).y;\n\t#endif\n\tmaterial.clearcoat = saturate( material.clearcoat );\tmaterial.clearcoatRoughness = max( material.clearcoatRoughness, 0.0525 );\n\tmaterial.clearcoatRoughness += geometryRoughness;\n\tmaterial.clearcoatRoughness = min( material.clearcoatRoughness, 1.0 );\n#endif\n#ifdef USE_IRIDESCENCE\n\tmaterial.iridescence = iridescence;\n\tmaterial.iridescenceIOR = iridescenceIOR;\n\t#ifdef USE_IRIDESCENCEMAP\n\t\tmaterial.iridescence *= texture2D( iridescenceMap, vIridescenceMapUv ).r;\n\t#endif\n\t#ifdef USE_IRIDESCENCE_THICKNESSMAP\n\t\tmaterial.iridescenceThickness = (iridescenceThicknessMaximum - iridescenceThicknessMinimum) * texture2D( iridescenceThicknessMap, vIridescenceThicknessMapUv ).g + iridescenceThicknessMinimum;\n\t#else\n\t\tmaterial.iridescenceThickness = iridescenceThicknessMaximum;\n\t#endif\n#endif\n#ifdef USE_SHEEN\n\tmaterial.sheenColor = sheenColor;\n\t#ifdef USE_SHEEN_COLORMAP\n\t\tmaterial.sheenColor *= texture2D( sheenColorMap, vSheenColorMapUv ).rgb;\n\t#endif\n\tmaterial.sheenRoughness = clamp( sheenRoughness, 0.07, 1.0 );\n\t#ifdef USE_SHEEN_ROUGHNESSMAP\n\t\tmaterial.sheenRoughness *= texture2D( sheenRoughnessMap, vSheenRoughnessMapUv ).a;\n\t#endif\n#endif\n#ifdef USE_ANISOTROPY\n\t#ifdef USE_ANISOTROPYMAP\n\t\tmat2 anisotropyMat = mat2( anisotropyVector.x, anisotropyVector.y, - anisotropyVector.y, anisotropyVector.x );\n\t\tvec3 anisotropyPolar = texture2D( anisotropyMap, vAnisotropyMapUv ).rgb;\n\t\tvec2 anisotropyV = anisotropyMat * normalize( 2.0 * anisotropyPolar.rg - vec2( 1.0 ) ) * anisotropyPolar.b;\n\t#else\n\t\tvec2 anisotropyV = anisotropyVector;\n\t#endif\n\tmaterial.anisotropy = length( anisotropyV );\n\tanisotropyV /= material.anisotropy;\n\tmaterial.anisotropy = saturate( material.anisotropy );\n\tmaterial.alphaT = mix( pow2( material.roughness ), 1.0, pow2( material.anisotropy ) );\n\tmaterial.anisotropyT = tbn[ 0 ] * anisotropyV.x - tbn[ 1 ] * anisotropyV.y;\n\tmaterial.anisotropyB = tbn[ 1 ] * anisotropyV.x + tbn[ 0 ] * anisotropyV.y;\n#endif",lights_physical_pars_fragment:"struct PhysicalMaterial {\n\tvec3 diffuseColor;\n\tfloat roughness;\n\tvec3 specularColor;\n\tfloat specularF90;\n\t#ifdef USE_CLEARCOAT\n\t\tfloat clearcoat;\n\t\tfloat clearcoatRoughness;\n\t\tvec3 clearcoatF0;\n\t\tfloat clearcoatF90;\n\t#endif\n\t#ifdef USE_IRIDESCENCE\n\t\tfloat iridescence;\n\t\tfloat iridescenceIOR;\n\t\tfloat iridescenceThickness;\n\t\tvec3 iridescenceFresnel;\n\t\tvec3 iridescenceF0;\n\t#endif\n\t#ifdef USE_SHEEN\n\t\tvec3 sheenColor;\n\t\tfloat sheenRoughness;\n\t#endif\n\t#ifdef IOR\n\t\tfloat ior;\n\t#endif\n\t#ifdef USE_TRANSMISSION\n\t\tfloat transmission;\n\t\tfloat transmissionAlpha;\n\t\tfloat thickness;\n\t\tfloat attenuationDistance;\n\t\tvec3 attenuationColor;\n\t#endif\n\t#ifdef USE_ANISOTROPY\n\t\tfloat anisotropy;\n\t\tfloat alphaT;\n\t\tvec3 anisotropyT;\n\t\tvec3 anisotropyB;\n\t#endif\n};\nvec3 clearcoatSpecular = vec3( 0.0 );\nvec3 sheenSpecular = vec3( 0.0 );\nvec3 Schlick_to_F0( const in vec3 f, const in float f90, const in float dotVH ) {\n float x = clamp( 1.0 - dotVH, 0.0, 1.0 );\n float x2 = x * x;\n float x5 = clamp( x * x2 * x2, 0.0, 0.9999 );\n return ( f - vec3( f90 ) * x5 ) / ( 1.0 - x5 );\n}\nfloat V_GGX_SmithCorrelated( const in float alpha, const in float dotNL, const in float dotNV ) {\n\tfloat a2 = pow2( alpha );\n\tfloat gv = dotNL * sqrt( a2 + ( 1.0 - a2 ) * pow2( dotNV ) );\n\tfloat gl = dotNV * sqrt( a2 + ( 1.0 - a2 ) * pow2( dotNL ) );\n\treturn 0.5 / max( gv + gl, EPSILON );\n}\nfloat D_GGX( const in float alpha, const in float dotNH ) {\n\tfloat a2 = pow2( alpha );\n\tfloat denom = pow2( dotNH ) * ( a2 - 1.0 ) + 1.0;\n\treturn RECIPROCAL_PI * a2 / pow2( denom );\n}\n#ifdef USE_ANISOTROPY\n\tfloat V_GGX_SmithCorrelated_Anisotropic( const in float alphaT, const in float alphaB, const in float dotTV, const in float dotBV, const in float dotTL, const in float dotBL, const in float dotNV, const in float dotNL ) {\n\t\tfloat gv = dotNL * length( vec3( alphaT * dotTV, alphaB * dotBV, dotNV ) );\n\t\tfloat gl = dotNV * length( vec3( alphaT * dotTL, alphaB * dotBL, dotNL ) );\n\t\tfloat v = 0.5 / ( gv + gl );\n\t\treturn saturate(v);\n\t}\n\tfloat D_GGX_Anisotropic( const in float alphaT, const in float alphaB, const in float dotNH, const in float dotTH, const in float dotBH ) {\n\t\tfloat a2 = alphaT * alphaB;\n\t\thighp vec3 v = vec3( alphaB * dotTH, alphaT * dotBH, a2 * dotNH );\n\t\thighp float v2 = dot( v, v );\n\t\tfloat w2 = a2 / v2;\n\t\treturn RECIPROCAL_PI * a2 * pow2 ( w2 );\n\t}\n#endif\n#ifdef USE_CLEARCOAT\n\tvec3 BRDF_GGX_Clearcoat( const in vec3 lightDir, const in vec3 viewDir, const in vec3 normal, const in PhysicalMaterial material) {\n\t\tvec3 f0 = material.clearcoatF0;\n\t\tfloat f90 = material.clearcoatF90;\n\t\tfloat roughness = material.clearcoatRoughness;\n\t\tfloat alpha = pow2( roughness );\n\t\tvec3 halfDir = normalize( lightDir + viewDir );\n\t\tfloat dotNL = saturate( dot( normal, lightDir ) );\n\t\tfloat dotNV = saturate( dot( normal, viewDir ) );\n\t\tfloat dotNH = saturate( dot( normal, halfDir ) );\n\t\tfloat dotVH = saturate( dot( viewDir, halfDir ) );\n\t\tvec3 F = F_Schlick( f0, f90, dotVH );\n\t\tfloat V = V_GGX_SmithCorrelated( alpha, dotNL, dotNV );\n\t\tfloat D = D_GGX( alpha, dotNH );\n\t\treturn F * ( V * D );\n\t}\n#endif\nvec3 BRDF_GGX( const in vec3 lightDir, const in vec3 viewDir, const in vec3 normal, const in PhysicalMaterial material ) {\n\tvec3 f0 = material.specularColor;\n\tfloat f90 = material.specularF90;\n\tfloat roughness = material.roughness;\n\tfloat alpha = pow2( roughness );\n\tvec3 halfDir = normalize( lightDir + viewDir );\n\tfloat dotNL = saturate( dot( normal, lightDir ) );\n\tfloat dotNV = saturate( dot( normal, viewDir ) );\n\tfloat dotNH = saturate( dot( normal, halfDir ) );\n\tfloat dotVH = saturate( dot( viewDir, halfDir ) );\n\tvec3 F = F_Schlick( f0, f90, dotVH );\n\t#ifdef USE_IRIDESCENCE\n\t\tF = mix( F, material.iridescenceFresnel, material.iridescence );\n\t#endif\n\t#ifdef USE_ANISOTROPY\n\t\tfloat dotTL = dot( material.anisotropyT, lightDir );\n\t\tfloat dotTV = dot( material.anisotropyT, viewDir );\n\t\tfloat dotTH = dot( material.anisotropyT, halfDir );\n\t\tfloat dotBL = dot( material.anisotropyB, lightDir );\n\t\tfloat dotBV = dot( material.anisotropyB, viewDir );\n\t\tfloat dotBH = dot( material.anisotropyB, halfDir );\n\t\tfloat V = V_GGX_SmithCorrelated_Anisotropic( material.alphaT, alpha, dotTV, dotBV, dotTL, dotBL, dotNV, dotNL );\n\t\tfloat D = D_GGX_Anisotropic( material.alphaT, alpha, dotNH, dotTH, dotBH );\n\t#else\n\t\tfloat V = V_GGX_SmithCorrelated( alpha, dotNL, dotNV );\n\t\tfloat D = D_GGX( alpha, dotNH );\n\t#endif\n\treturn F * ( V * D );\n}\nvec2 LTC_Uv( const in vec3 N, const in vec3 V, const in float roughness ) {\n\tconst float LUT_SIZE = 64.0;\n\tconst float LUT_SCALE = ( LUT_SIZE - 1.0 ) / LUT_SIZE;\n\tconst float LUT_BIAS = 0.5 / LUT_SIZE;\n\tfloat dotNV = saturate( dot( N, V ) );\n\tvec2 uv = vec2( roughness, sqrt( 1.0 - dotNV ) );\n\tuv = uv * LUT_SCALE + LUT_BIAS;\n\treturn uv;\n}\nfloat LTC_ClippedSphereFormFactor( const in vec3 f ) {\n\tfloat l = length( f );\n\treturn max( ( l * l + f.z ) / ( l + 1.0 ), 0.0 );\n}\nvec3 LTC_EdgeVectorFormFactor( const in vec3 v1, const in vec3 v2 ) {\n\tfloat x = dot( v1, v2 );\n\tfloat y = abs( x );\n\tfloat a = 0.8543985 + ( 0.4965155 + 0.0145206 * y ) * y;\n\tfloat b = 3.4175940 + ( 4.1616724 + y ) * y;\n\tfloat v = a / b;\n\tfloat theta_sintheta = ( x > 0.0 ) ? v : 0.5 * inversesqrt( max( 1.0 - x * x, 1e-7 ) ) - v;\n\treturn cross( v1, v2 ) * theta_sintheta;\n}\nvec3 LTC_Evaluate( const in vec3 N, const in vec3 V, const in vec3 P, const in mat3 mInv, const in vec3 rectCoords[ 4 ] ) {\n\tvec3 v1 = rectCoords[ 1 ] - rectCoords[ 0 ];\n\tvec3 v2 = rectCoords[ 3 ] - rectCoords[ 0 ];\n\tvec3 lightNormal = cross( v1, v2 );\n\tif( dot( lightNormal, P - rectCoords[ 0 ] ) < 0.0 ) return vec3( 0.0 );\n\tvec3 T1, T2;\n\tT1 = normalize( V - N * dot( V, N ) );\n\tT2 = - cross( N, T1 );\n\tmat3 mat = mInv * transposeMat3( mat3( T1, T2, N ) );\n\tvec3 coords[ 4 ];\n\tcoords[ 0 ] = mat * ( rectCoords[ 0 ] - P );\n\tcoords[ 1 ] = mat * ( rectCoords[ 1 ] - P );\n\tcoords[ 2 ] = mat * ( rectCoords[ 2 ] - P );\n\tcoords[ 3 ] = mat * ( rectCoords[ 3 ] - P );\n\tcoords[ 0 ] = normalize( coords[ 0 ] );\n\tcoords[ 1 ] = normalize( coords[ 1 ] );\n\tcoords[ 2 ] = normalize( coords[ 2 ] );\n\tcoords[ 3 ] = normalize( coords[ 3 ] );\n\tvec3 vectorFormFactor = vec3( 0.0 );\n\tvectorFormFactor += LTC_EdgeVectorFormFactor( coords[ 0 ], coords[ 1 ] );\n\tvectorFormFactor += LTC_EdgeVectorFormFactor( coords[ 1 ], coords[ 2 ] );\n\tvectorFormFactor += LTC_EdgeVectorFormFactor( coords[ 2 ], coords[ 3 ] );\n\tvectorFormFactor += LTC_EdgeVectorFormFactor( coords[ 3 ], coords[ 0 ] );\n\tfloat result = LTC_ClippedSphereFormFactor( vectorFormFactor );\n\treturn vec3( result );\n}\n#if defined( USE_SHEEN )\nfloat D_Charlie( float roughness, float dotNH ) {\n\tfloat alpha = pow2( roughness );\n\tfloat invAlpha = 1.0 / alpha;\n\tfloat cos2h = dotNH * dotNH;\n\tfloat sin2h = max( 1.0 - cos2h, 0.0078125 );\n\treturn ( 2.0 + invAlpha ) * pow( sin2h, invAlpha * 0.5 ) / ( 2.0 * PI );\n}\nfloat V_Neubelt( float dotNV, float dotNL ) {\n\treturn saturate( 1.0 / ( 4.0 * ( dotNL + dotNV - dotNL * dotNV ) ) );\n}\nvec3 BRDF_Sheen( const in vec3 lightDir, const in vec3 viewDir, const in vec3 normal, vec3 sheenColor, const in float sheenRoughness ) {\n\tvec3 halfDir = normalize( lightDir + viewDir );\n\tfloat dotNL = saturate( dot( normal, lightDir ) );\n\tfloat dotNV = saturate( dot( normal, viewDir ) );\n\tfloat dotNH = saturate( dot( normal, halfDir ) );\n\tfloat D = D_Charlie( sheenRoughness, dotNH );\n\tfloat V = V_Neubelt( dotNV, dotNL );\n\treturn sheenColor * ( D * V );\n}\n#endif\nfloat IBLSheenBRDF( const in vec3 normal, const in vec3 viewDir, const in float roughness ) {\n\tfloat dotNV = saturate( dot( normal, viewDir ) );\n\tfloat r2 = roughness * roughness;\n\tfloat a = roughness < 0.25 ? -339.2 * r2 + 161.4 * roughness - 25.9 : -8.48 * r2 + 14.3 * roughness - 9.95;\n\tfloat b = roughness < 0.25 ? 44.0 * r2 - 23.7 * roughness + 3.26 : 1.97 * r2 - 3.27 * roughness + 0.72;\n\tfloat DG = exp( a * dotNV + b ) + ( roughness < 0.25 ? 0.0 : 0.1 * ( roughness - 0.25 ) );\n\treturn saturate( DG * RECIPROCAL_PI );\n}\nvec2 DFGApprox( const in vec3 normal, const in vec3 viewDir, const in float roughness ) {\n\tfloat dotNV = saturate( dot( normal, viewDir ) );\n\tconst vec4 c0 = vec4( - 1, - 0.0275, - 0.572, 0.022 );\n\tconst vec4 c1 = vec4( 1, 0.0425, 1.04, - 0.04 );\n\tvec4 r = roughness * c0 + c1;\n\tfloat a004 = min( r.x * r.x, exp2( - 9.28 * dotNV ) ) * r.x + r.y;\n\tvec2 fab = vec2( - 1.04, 1.04 ) * a004 + r.zw;\n\treturn fab;\n}\nvec3 EnvironmentBRDF( const in vec3 normal, const in vec3 viewDir, const in vec3 specularColor, const in float specularF90, const in float roughness ) {\n\tvec2 fab = DFGApprox( normal, viewDir, roughness );\n\treturn specularColor * fab.x + specularF90 * fab.y;\n}\n#ifdef USE_IRIDESCENCE\nvoid computeMultiscatteringIridescence( const in vec3 normal, const in vec3 viewDir, const in vec3 specularColor, const in float specularF90, const in float iridescence, const in vec3 iridescenceF0, const in float roughness, inout vec3 singleScatter, inout vec3 multiScatter ) {\n#else\nvoid computeMultiscattering( const in vec3 normal, const in vec3 viewDir, const in vec3 specularColor, const in float specularF90, const in float roughness, inout vec3 singleScatter, inout vec3 multiScatter ) {\n#endif\n\tvec2 fab = DFGApprox( normal, viewDir, roughness );\n\t#ifdef USE_IRIDESCENCE\n\t\tvec3 Fr = mix( specularColor, iridescenceF0, iridescence );\n\t#else\n\t\tvec3 Fr = specularColor;\n\t#endif\n\tvec3 FssEss = Fr * fab.x + specularF90 * fab.y;\n\tfloat Ess = fab.x + fab.y;\n\tfloat Ems = 1.0 - Ess;\n\tvec3 Favg = Fr + ( 1.0 - Fr ) * 0.047619;\tvec3 Fms = FssEss * Favg / ( 1.0 - Ems * Favg );\n\tsingleScatter += FssEss;\n\tmultiScatter += Fms * Ems;\n}\n#if NUM_RECT_AREA_LIGHTS > 0\n\tvoid RE_Direct_RectArea_Physical( const in RectAreaLight rectAreaLight, const in GeometricContext geometry, const in PhysicalMaterial material, inout ReflectedLight reflectedLight ) {\n\t\tvec3 normal = geometry.normal;\n\t\tvec3 viewDir = geometry.viewDir;\n\t\tvec3 position = geometry.position;\n\t\tvec3 lightPos = rectAreaLight.position;\n\t\tvec3 halfWidth = rectAreaLight.halfWidth;\n\t\tvec3 halfHeight = rectAreaLight.halfHeight;\n\t\tvec3 lightColor = rectAreaLight.color;\n\t\tfloat roughness = material.roughness;\n\t\tvec3 rectCoords[ 4 ];\n\t\trectCoords[ 0 ] = lightPos + halfWidth - halfHeight;\t\trectCoords[ 1 ] = lightPos - halfWidth - halfHeight;\n\t\trectCoords[ 2 ] = lightPos - halfWidth + halfHeight;\n\t\trectCoords[ 3 ] = lightPos + halfWidth + halfHeight;\n\t\tvec2 uv = LTC_Uv( normal, viewDir, roughness );\n\t\tvec4 t1 = texture2D( ltc_1, uv );\n\t\tvec4 t2 = texture2D( ltc_2, uv );\n\t\tmat3 mInv = mat3(\n\t\t\tvec3( t1.x, 0, t1.y ),\n\t\t\tvec3( 0, 1, 0 ),\n\t\t\tvec3( t1.z, 0, t1.w )\n\t\t);\n\t\tvec3 fresnel = ( material.specularColor * t2.x + ( vec3( 1.0 ) - material.specularColor ) * t2.y );\n\t\treflectedLight.directSpecular += lightColor * fresnel * LTC_Evaluate( normal, viewDir, position, mInv, rectCoords );\n\t\treflectedLight.directDiffuse += lightColor * material.diffuseColor * LTC_Evaluate( normal, viewDir, position, mat3( 1.0 ), rectCoords );\n\t}\n#endif\nvoid RE_Direct_Physical( const in IncidentLight directLight, const in GeometricContext geometry, const in PhysicalMaterial material, inout ReflectedLight reflectedLight ) {\n\tfloat dotNL = saturate( dot( geometry.normal, directLight.direction ) );\n\tvec3 irradiance = dotNL * directLight.color;\n\t#ifdef USE_CLEARCOAT\n\t\tfloat dotNLcc = saturate( dot( geometry.clearcoatNormal, directLight.direction ) );\n\t\tvec3 ccIrradiance = dotNLcc * directLight.color;\n\t\tclearcoatSpecular += ccIrradiance * BRDF_GGX_Clearcoat( directLight.direction, geometry.viewDir, geometry.clearcoatNormal, material );\n\t#endif\n\t#ifdef USE_SHEEN\n\t\tsheenSpecular += irradiance * BRDF_Sheen( directLight.direction, geometry.viewDir, geometry.normal, material.sheenColor, material.sheenRoughness );\n\t#endif\n\treflectedLight.directSpecular += irradiance * BRDF_GGX( directLight.direction, geometry.viewDir, geometry.normal, material );\n\treflectedLight.directDiffuse += irradiance * BRDF_Lambert( material.diffuseColor );\n}\nvoid RE_IndirectDiffuse_Physical( const in vec3 irradiance, const in GeometricContext geometry, const in PhysicalMaterial material, inout ReflectedLight reflectedLight ) {\n\treflectedLight.indirectDiffuse += irradiance * BRDF_Lambert( material.diffuseColor );\n}\nvoid RE_IndirectSpecular_Physical( const in vec3 radiance, const in vec3 irradiance, const in vec3 clearcoatRadiance, const in GeometricContext geometry, const in PhysicalMaterial material, inout ReflectedLight reflectedLight) {\n\t#ifdef USE_CLEARCOAT\n\t\tclearcoatSpecular += clearcoatRadiance * EnvironmentBRDF( geometry.clearcoatNormal, geometry.viewDir, material.clearcoatF0, material.clearcoatF90, material.clearcoatRoughness );\n\t#endif\n\t#ifdef USE_SHEEN\n\t\tsheenSpecular += irradiance * material.sheenColor * IBLSheenBRDF( geometry.normal, geometry.viewDir, material.sheenRoughness );\n\t#endif\n\tvec3 singleScattering = vec3( 0.0 );\n\tvec3 multiScattering = vec3( 0.0 );\n\tvec3 cosineWeightedIrradiance = irradiance * RECIPROCAL_PI;\n\t#ifdef USE_IRIDESCENCE\n\t\tcomputeMultiscatteringIridescence( geometry.normal, geometry.viewDir, material.specularColor, material.specularF90, material.iridescence, material.iridescenceFresnel, material.roughness, singleScattering, multiScattering );\n\t#else\n\t\tcomputeMultiscattering( geometry.normal, geometry.viewDir, material.specularColor, material.specularF90, material.roughness, singleScattering, multiScattering );\n\t#endif\n\tvec3 totalScattering = singleScattering + multiScattering;\n\tvec3 diffuse = material.diffuseColor * ( 1.0 - max( max( totalScattering.r, totalScattering.g ), totalScattering.b ) );\n\treflectedLight.indirectSpecular += radiance * singleScattering;\n\treflectedLight.indirectSpecular += multiScattering * cosineWeightedIrradiance;\n\treflectedLight.indirectDiffuse += diffuse * cosineWeightedIrradiance;\n}\n#define RE_Direct\t\t\t\tRE_Direct_Physical\n#define RE_Direct_RectArea\t\tRE_Direct_RectArea_Physical\n#define RE_IndirectDiffuse\t\tRE_IndirectDiffuse_Physical\n#define RE_IndirectSpecular\t\tRE_IndirectSpecular_Physical\nfloat computeSpecularOcclusion( const in float dotNV, const in float ambientOcclusion, const in float roughness ) {\n\treturn saturate( pow( dotNV + ambientOcclusion, exp2( - 16.0 * roughness - 1.0 ) ) - 1.0 + ambientOcclusion );\n}",lights_fragment_begin:"\nGeometricContext geometry;\ngeometry.position = - vViewPosition;\ngeometry.normal = normal;\ngeometry.viewDir = ( isOrthographic ) ? vec3( 0, 0, 1 ) : normalize( vViewPosition );\n#ifdef USE_CLEARCOAT\n\tgeometry.clearcoatNormal = clearcoatNormal;\n#endif\n#ifdef USE_IRIDESCENCE\n\tfloat dotNVi = saturate( dot( normal, geometry.viewDir ) );\n\tif ( material.iridescenceThickness == 0.0 ) {\n\t\tmaterial.iridescence = 0.0;\n\t} else {\n\t\tmaterial.iridescence = saturate( material.iridescence );\n\t}\n\tif ( material.iridescence > 0.0 ) {\n\t\tmaterial.iridescenceFresnel = evalIridescence( 1.0, material.iridescenceIOR, dotNVi, material.iridescenceThickness, material.specularColor );\n\t\tmaterial.iridescenceF0 = Schlick_to_F0( material.iridescenceFresnel, 1.0, dotNVi );\n\t}\n#endif\nIncidentLight directLight;\n#if ( NUM_POINT_LIGHTS > 0 ) && defined( RE_Direct )\n\tPointLight pointLight;\n\t#if defined( USE_SHADOWMAP ) && NUM_POINT_LIGHT_SHADOWS > 0\n\tPointLightShadow pointLightShadow;\n\t#endif\n\t#pragma unroll_loop_start\n\tfor ( int i = 0; i < NUM_POINT_LIGHTS; i ++ ) {\n\t\tpointLight = pointLights[ i ];\n\t\tgetPointLightInfo( pointLight, geometry, directLight );\n\t\t#if defined( USE_SHADOWMAP ) && ( UNROLLED_LOOP_INDEX < NUM_POINT_LIGHT_SHADOWS )\n\t\tpointLightShadow = pointLightShadows[ i ];\n\t\tdirectLight.color *= ( directLight.visible && receiveShadow ) ? getPointShadow( pointShadowMap[ i ], pointLightShadow.shadowMapSize, pointLightShadow.shadowBias, pointLightShadow.shadowRadius, vPointShadowCoord[ i ], pointLightShadow.shadowCameraNear, pointLightShadow.shadowCameraFar ) : 1.0;\n\t\t#endif\n\t\tRE_Direct( directLight, geometry, material, reflectedLight );\n\t}\n\t#pragma unroll_loop_end\n#endif\n#if ( NUM_SPOT_LIGHTS > 0 ) && defined( RE_Direct )\n\tSpotLight spotLight;\n\tvec4 spotColor;\n\tvec3 spotLightCoord;\n\tbool inSpotLightMap;\n\t#if defined( USE_SHADOWMAP ) && NUM_SPOT_LIGHT_SHADOWS > 0\n\tSpotLightShadow spotLightShadow;\n\t#endif\n\t#pragma unroll_loop_start\n\tfor ( int i = 0; i < NUM_SPOT_LIGHTS; i ++ ) {\n\t\tspotLight = spotLights[ i ];\n\t\tgetSpotLightInfo( spotLight, geometry, directLight );\n\t\t#if ( UNROLLED_LOOP_INDEX < NUM_SPOT_LIGHT_SHADOWS_WITH_MAPS )\n\t\t#define SPOT_LIGHT_MAP_INDEX UNROLLED_LOOP_INDEX\n\t\t#elif ( UNROLLED_LOOP_INDEX < NUM_SPOT_LIGHT_SHADOWS )\n\t\t#define SPOT_LIGHT_MAP_INDEX NUM_SPOT_LIGHT_MAPS\n\t\t#else\n\t\t#define SPOT_LIGHT_MAP_INDEX ( UNROLLED_LOOP_INDEX - NUM_SPOT_LIGHT_SHADOWS + NUM_SPOT_LIGHT_SHADOWS_WITH_MAPS )\n\t\t#endif\n\t\t#if ( SPOT_LIGHT_MAP_INDEX < NUM_SPOT_LIGHT_MAPS )\n\t\t\tspotLightCoord = vSpotLightCoord[ i ].xyz / vSpotLightCoord[ i ].w;\n\t\t\tinSpotLightMap = all( lessThan( abs( spotLightCoord * 2. - 1. ), vec3( 1.0 ) ) );\n\t\t\tspotColor = texture2D( spotLightMap[ SPOT_LIGHT_MAP_INDEX ], spotLightCoord.xy );\n\t\t\tdirectLight.color = inSpotLightMap ? directLight.color * spotColor.rgb : directLight.color;\n\t\t#endif\n\t\t#undef SPOT_LIGHT_MAP_INDEX\n\t\t#if defined( USE_SHADOWMAP ) && ( UNROLLED_LOOP_INDEX < NUM_SPOT_LIGHT_SHADOWS )\n\t\tspotLightShadow = spotLightShadows[ i ];\n\t\tdirectLight.color *= ( directLight.visible && receiveShadow ) ? getShadow( spotShadowMap[ i ], spotLightShadow.shadowMapSize, spotLightShadow.shadowBias, spotLightShadow.shadowRadius, vSpotLightCoord[ i ] ) : 1.0;\n\t\t#endif\n\t\tRE_Direct( directLight, geometry, material, reflectedLight );\n\t}\n\t#pragma unroll_loop_end\n#endif\n#if ( NUM_DIR_LIGHTS > 0 ) && defined( RE_Direct )\n\tDirectionalLight directionalLight;\n\t#if defined( USE_SHADOWMAP ) && NUM_DIR_LIGHT_SHADOWS > 0\n\tDirectionalLightShadow directionalLightShadow;\n\t#endif\n\t#pragma unroll_loop_start\n\tfor ( int i = 0; i < NUM_DIR_LIGHTS; i ++ ) {\n\t\tdirectionalLight = directionalLights[ i ];\n\t\tgetDirectionalLightInfo( directionalLight, geometry, directLight );\n\t\t#if defined( USE_SHADOWMAP ) && ( UNROLLED_LOOP_INDEX < NUM_DIR_LIGHT_SHADOWS )\n\t\tdirectionalLightShadow = directionalLightShadows[ i ];\n\t\tdirectLight.color *= ( directLight.visible && receiveShadow ) ? getShadow( directionalShadowMap[ i ], directionalLightShadow.shadowMapSize, directionalLightShadow.shadowBias, directionalLightShadow.shadowRadius, vDirectionalShadowCoord[ i ] ) : 1.0;\n\t\t#endif\n\t\tRE_Direct( directLight, geometry, material, reflectedLight );\n\t}\n\t#pragma unroll_loop_end\n#endif\n#if ( NUM_RECT_AREA_LIGHTS > 0 ) && defined( RE_Direct_RectArea )\n\tRectAreaLight rectAreaLight;\n\t#pragma unroll_loop_start\n\tfor ( int i = 0; i < NUM_RECT_AREA_LIGHTS; i ++ ) {\n\t\trectAreaLight = rectAreaLights[ i ];\n\t\tRE_Direct_RectArea( rectAreaLight, geometry, material, reflectedLight );\n\t}\n\t#pragma unroll_loop_end\n#endif\n#if defined( RE_IndirectDiffuse )\n\tvec3 iblIrradiance = vec3( 0.0 );\n\tvec3 irradiance = getAmbientLightIrradiance( ambientLightColor );\n\tirradiance += getLightProbeIrradiance( lightProbe, geometry.normal );\n\t#if ( NUM_HEMI_LIGHTS > 0 )\n\t\t#pragma unroll_loop_start\n\t\tfor ( int i = 0; i < NUM_HEMI_LIGHTS; i ++ ) {\n\t\t\tirradiance += getHemisphereLightIrradiance( hemisphereLights[ i ], geometry.normal );\n\t\t}\n\t\t#pragma unroll_loop_end\n\t#endif\n#endif\n#if defined( RE_IndirectSpecular )\n\tvec3 radiance = vec3( 0.0 );\n\tvec3 clearcoatRadiance = vec3( 0.0 );\n#endif",lights_fragment_maps:"#if defined( RE_IndirectDiffuse )\n\t#ifdef USE_LIGHTMAP\n\t\tvec4 lightMapTexel = texture2D( lightMap, vLightMapUv );\n\t\tvec3 lightMapIrradiance = lightMapTexel.rgb * lightMapIntensity;\n\t\tirradiance += lightMapIrradiance;\n\t#endif\n\t#if defined( USE_ENVMAP ) && defined( STANDARD ) && defined( ENVMAP_TYPE_CUBE_UV )\n\t\tiblIrradiance += getIBLIrradiance( geometry.normal );\n\t#endif\n#endif\n#if defined( USE_ENVMAP ) && defined( RE_IndirectSpecular )\n\t#ifdef USE_ANISOTROPY\n\t\tradiance += getIBLAnisotropyRadiance( geometry.viewDir, geometry.normal, material.roughness, material.anisotropyB, material.anisotropy );\n\t#else\n\t\tradiance += getIBLRadiance( geometry.viewDir, geometry.normal, material.roughness );\n\t#endif\n\t#ifdef USE_CLEARCOAT\n\t\tclearcoatRadiance += getIBLRadiance( geometry.viewDir, geometry.clearcoatNormal, material.clearcoatRoughness );\n\t#endif\n#endif",lights_fragment_end:"#if defined( RE_IndirectDiffuse )\n\tRE_IndirectDiffuse( irradiance, geometry, material, reflectedLight );\n#endif\n#if defined( RE_IndirectSpecular )\n\tRE_IndirectSpecular( radiance, iblIrradiance, clearcoatRadiance, geometry, material, reflectedLight );\n#endif",logdepthbuf_fragment:"#if defined( USE_LOGDEPTHBUF ) && defined( USE_LOGDEPTHBUF_EXT )\n\tgl_FragDepthEXT = vIsPerspective == 0.0 ? gl_FragCoord.z : log2( vFragDepth ) * logDepthBufFC * 0.5;\n#endif",logdepthbuf_pars_fragment:"#if defined( USE_LOGDEPTHBUF ) && defined( USE_LOGDEPTHBUF_EXT )\n\tuniform float logDepthBufFC;\n\tvarying float vFragDepth;\n\tvarying float vIsPerspective;\n#endif",logdepthbuf_pars_vertex:"#ifdef USE_LOGDEPTHBUF\n\t#ifdef USE_LOGDEPTHBUF_EXT\n\t\tvarying float vFragDepth;\n\t\tvarying float vIsPerspective;\n\t#else\n\t\tuniform float logDepthBufFC;\n\t#endif\n#endif",logdepthbuf_vertex:"#ifdef USE_LOGDEPTHBUF\n\t#ifdef USE_LOGDEPTHBUF_EXT\n\t\tvFragDepth = 1.0 + gl_Position.w;\n\t\tvIsPerspective = float( isPerspectiveMatrix( projectionMatrix ) );\n\t#else\n\t\tif ( isPerspectiveMatrix( projectionMatrix ) ) {\n\t\t\tgl_Position.z = log2( max( EPSILON, gl_Position.w + 1.0 ) ) * logDepthBufFC - 1.0;\n\t\t\tgl_Position.z *= gl_Position.w;\n\t\t}\n\t#endif\n#endif",map_fragment:"#ifdef USE_MAP\n\tvec4 sampledDiffuseColor = texture2D( map, vMapUv );\n\t#ifdef DECODE_VIDEO_TEXTURE\n\t\tsampledDiffuseColor = vec4( mix( pow( sampledDiffuseColor.rgb * 0.9478672986 + vec3( 0.0521327014 ), vec3( 2.4 ) ), sampledDiffuseColor.rgb * 0.0773993808, vec3( lessThanEqual( sampledDiffuseColor.rgb, vec3( 0.04045 ) ) ) ), sampledDiffuseColor.w );\n\t\n\t#endif\n\tdiffuseColor *= sampledDiffuseColor;\n#endif",map_pars_fragment:"#ifdef USE_MAP\n\tuniform sampler2D map;\n#endif",map_particle_fragment:"#if defined( USE_MAP ) || defined( USE_ALPHAMAP )\n\t#if defined( USE_POINTS_UV )\n\t\tvec2 uv = vUv;\n\t#else\n\t\tvec2 uv = ( uvTransform * vec3( gl_PointCoord.x, 1.0 - gl_PointCoord.y, 1 ) ).xy;\n\t#endif\n#endif\n#ifdef USE_MAP\n\tdiffuseColor *= texture2D( map, uv );\n#endif\n#ifdef USE_ALPHAMAP\n\tdiffuseColor.a *= texture2D( alphaMap, uv ).g;\n#endif",map_particle_pars_fragment:"#if defined( USE_POINTS_UV )\n\tvarying vec2 vUv;\n#else\n\t#if defined( USE_MAP ) || defined( USE_ALPHAMAP )\n\t\tuniform mat3 uvTransform;\n\t#endif\n#endif\n#ifdef USE_MAP\n\tuniform sampler2D map;\n#endif\n#ifdef USE_ALPHAMAP\n\tuniform sampler2D alphaMap;\n#endif",metalnessmap_fragment:"float metalnessFactor = metalness;\n#ifdef USE_METALNESSMAP\n\tvec4 texelMetalness = texture2D( metalnessMap, vMetalnessMapUv );\n\tmetalnessFactor *= texelMetalness.b;\n#endif",metalnessmap_pars_fragment:"#ifdef USE_METALNESSMAP\n\tuniform sampler2D metalnessMap;\n#endif",morphcolor_vertex:"#if defined( USE_MORPHCOLORS ) && defined( MORPHTARGETS_TEXTURE )\n\tvColor *= morphTargetBaseInfluence;\n\tfor ( int i = 0; i < MORPHTARGETS_COUNT; i ++ ) {\n\t\t#if defined( USE_COLOR_ALPHA )\n\t\t\tif ( morphTargetInfluences[ i ] != 0.0 ) vColor += getMorph( gl_VertexID, i, 2 ) * morphTargetInfluences[ i ];\n\t\t#elif defined( USE_COLOR )\n\t\t\tif ( morphTargetInfluences[ i ] != 0.0 ) vColor += getMorph( gl_VertexID, i, 2 ).rgb * morphTargetInfluences[ i ];\n\t\t#endif\n\t}\n#endif",morphnormal_vertex:"#ifdef USE_MORPHNORMALS\n\tobjectNormal *= morphTargetBaseInfluence;\n\t#ifdef MORPHTARGETS_TEXTURE\n\t\tfor ( int i = 0; i < MORPHTARGETS_COUNT; i ++ ) {\n\t\t\tif ( morphTargetInfluences[ i ] != 0.0 ) objectNormal += getMorph( gl_VertexID, i, 1 ).xyz * morphTargetInfluences[ i ];\n\t\t}\n\t#else\n\t\tobjectNormal += morphNormal0 * morphTargetInfluences[ 0 ];\n\t\tobjectNormal += morphNormal1 * morphTargetInfluences[ 1 ];\n\t\tobjectNormal += morphNormal2 * morphTargetInfluences[ 2 ];\n\t\tobjectNormal += morphNormal3 * morphTargetInfluences[ 3 ];\n\t#endif\n#endif",morphtarget_pars_vertex:"#ifdef USE_MORPHTARGETS\n\tuniform float morphTargetBaseInfluence;\n\t#ifdef MORPHTARGETS_TEXTURE\n\t\tuniform float morphTargetInfluences[ MORPHTARGETS_COUNT ];\n\t\tuniform sampler2DArray morphTargetsTexture;\n\t\tuniform ivec2 morphTargetsTextureSize;\n\t\tvec4 getMorph( const in int vertexIndex, const in int morphTargetIndex, const in int offset ) {\n\t\t\tint texelIndex = vertexIndex * MORPHTARGETS_TEXTURE_STRIDE + offset;\n\t\t\tint y = texelIndex / morphTargetsTextureSize.x;\n\t\t\tint x = texelIndex - y * morphTargetsTextureSize.x;\n\t\t\tivec3 morphUV = ivec3( x, y, morphTargetIndex );\n\t\t\treturn texelFetch( morphTargetsTexture, morphUV, 0 );\n\t\t}\n\t#else\n\t\t#ifndef USE_MORPHNORMALS\n\t\t\tuniform float morphTargetInfluences[ 8 ];\n\t\t#else\n\t\t\tuniform float morphTargetInfluences[ 4 ];\n\t\t#endif\n\t#endif\n#endif",morphtarget_vertex:"#ifdef USE_MORPHTARGETS\n\ttransformed *= morphTargetBaseInfluence;\n\t#ifdef MORPHTARGETS_TEXTURE\n\t\tfor ( int i = 0; i < MORPHTARGETS_COUNT; i ++ ) {\n\t\t\tif ( morphTargetInfluences[ i ] != 0.0 ) transformed += getMorph( gl_VertexID, i, 0 ).xyz * morphTargetInfluences[ i ];\n\t\t}\n\t#else\n\t\ttransformed += morphTarget0 * morphTargetInfluences[ 0 ];\n\t\ttransformed += morphTarget1 * morphTargetInfluences[ 1 ];\n\t\ttransformed += morphTarget2 * morphTargetInfluences[ 2 ];\n\t\ttransformed += morphTarget3 * morphTargetInfluences[ 3 ];\n\t\t#ifndef USE_MORPHNORMALS\n\t\t\ttransformed += morphTarget4 * morphTargetInfluences[ 4 ];\n\t\t\ttransformed += morphTarget5 * morphTargetInfluences[ 5 ];\n\t\t\ttransformed += morphTarget6 * morphTargetInfluences[ 6 ];\n\t\t\ttransformed += morphTarget7 * morphTargetInfluences[ 7 ];\n\t\t#endif\n\t#endif\n#endif",normal_fragment_begin:"float faceDirection = gl_FrontFacing ? 1.0 : - 1.0;\n#ifdef FLAT_SHADED\n\tvec3 fdx = dFdx( vViewPosition );\n\tvec3 fdy = dFdy( vViewPosition );\n\tvec3 normal = normalize( cross( fdx, fdy ) );\n#else\n\tvec3 normal = normalize( vNormal );\n\t#ifdef DOUBLE_SIDED\n\t\tnormal *= faceDirection;\n\t#endif\n#endif\n#if defined( USE_NORMALMAP_TANGENTSPACE ) || defined( USE_CLEARCOAT_NORMALMAP ) || defined( USE_ANISOTROPY )\n\t#ifdef USE_TANGENT\n\t\tmat3 tbn = mat3( normalize( vTangent ), normalize( vBitangent ), normal );\n\t#else\n\t\tmat3 tbn = getTangentFrame( - vViewPosition, normal,\n\t\t#if defined( USE_NORMALMAP )\n\t\t\tvNormalMapUv\n\t\t#elif defined( USE_CLEARCOAT_NORMALMAP )\n\t\t\tvClearcoatNormalMapUv\n\t\t#else\n\t\t\tvUv\n\t\t#endif\n\t\t);\n\t#endif\n\t#if defined( DOUBLE_SIDED ) && ! defined( FLAT_SHADED )\n\t\ttbn[0] *= faceDirection;\n\t\ttbn[1] *= faceDirection;\n\t#endif\n#endif\n#ifdef USE_CLEARCOAT_NORMALMAP\n\t#ifdef USE_TANGENT\n\t\tmat3 tbn2 = mat3( normalize( vTangent ), normalize( vBitangent ), normal );\n\t#else\n\t\tmat3 tbn2 = getTangentFrame( - vViewPosition, normal, vClearcoatNormalMapUv );\n\t#endif\n\t#if defined( DOUBLE_SIDED ) && ! defined( FLAT_SHADED )\n\t\ttbn2[0] *= faceDirection;\n\t\ttbn2[1] *= faceDirection;\n\t#endif\n#endif\nvec3 geometryNormal = normal;",normal_fragment_maps:"#ifdef USE_NORMALMAP_OBJECTSPACE\n\tnormal = texture2D( normalMap, vNormalMapUv ).xyz * 2.0 - 1.0;\n\t#ifdef FLIP_SIDED\n\t\tnormal = - normal;\n\t#endif\n\t#ifdef DOUBLE_SIDED\n\t\tnormal = normal * faceDirection;\n\t#endif\n\tnormal = normalize( normalMatrix * normal );\n#elif defined( USE_NORMALMAP_TANGENTSPACE )\n\tvec3 mapN = texture2D( normalMap, vNormalMapUv ).xyz * 2.0 - 1.0;\n\tmapN.xy *= normalScale;\n\tnormal = normalize( tbn * mapN );\n#elif defined( USE_BUMPMAP )\n\tnormal = perturbNormalArb( - vViewPosition, normal, dHdxy_fwd(), faceDirection );\n#endif",normal_pars_fragment:"#ifndef FLAT_SHADED\n\tvarying vec3 vNormal;\n\t#ifdef USE_TANGENT\n\t\tvarying vec3 vTangent;\n\t\tvarying vec3 vBitangent;\n\t#endif\n#endif",normal_pars_vertex:"#ifndef FLAT_SHADED\n\tvarying vec3 vNormal;\n\t#ifdef USE_TANGENT\n\t\tvarying vec3 vTangent;\n\t\tvarying vec3 vBitangent;\n\t#endif\n#endif",normal_vertex:"#ifndef FLAT_SHADED\n\tvNormal = normalize( transformedNormal );\n\t#ifdef USE_TANGENT\n\t\tvTangent = normalize( transformedTangent );\n\t\tvBitangent = normalize( cross( vNormal, vTangent ) * tangent.w );\n\t#endif\n#endif",normalmap_pars_fragment:"#ifdef USE_NORMALMAP\n\tuniform sampler2D normalMap;\n\tuniform vec2 normalScale;\n#endif\n#ifdef USE_NORMALMAP_OBJECTSPACE\n\tuniform mat3 normalMatrix;\n#endif\n#if ! defined ( USE_TANGENT ) && ( defined ( USE_NORMALMAP_TANGENTSPACE ) || defined ( USE_CLEARCOAT_NORMALMAP ) || defined( USE_ANISOTROPY ) )\n\tmat3 getTangentFrame( vec3 eye_pos, vec3 surf_norm, vec2 uv ) {\n\t\tvec3 q0 = dFdx( eye_pos.xyz );\n\t\tvec3 q1 = dFdy( eye_pos.xyz );\n\t\tvec2 st0 = dFdx( uv.st );\n\t\tvec2 st1 = dFdy( uv.st );\n\t\tvec3 N = surf_norm;\n\t\tvec3 q1perp = cross( q1, N );\n\t\tvec3 q0perp = cross( N, q0 );\n\t\tvec3 T = q1perp * st0.x + q0perp * st1.x;\n\t\tvec3 B = q1perp * st0.y + q0perp * st1.y;\n\t\tfloat det = max( dot( T, T ), dot( B, B ) );\n\t\tfloat scale = ( det == 0.0 ) ? 0.0 : inversesqrt( det );\n\t\treturn mat3( T * scale, B * scale, N );\n\t}\n#endif",clearcoat_normal_fragment_begin:"#ifdef USE_CLEARCOAT\n\tvec3 clearcoatNormal = geometryNormal;\n#endif",clearcoat_normal_fragment_maps:"#ifdef USE_CLEARCOAT_NORMALMAP\n\tvec3 clearcoatMapN = texture2D( clearcoatNormalMap, vClearcoatNormalMapUv ).xyz * 2.0 - 1.0;\n\tclearcoatMapN.xy *= clearcoatNormalScale;\n\tclearcoatNormal = normalize( tbn2 * clearcoatMapN );\n#endif",clearcoat_pars_fragment:"#ifdef USE_CLEARCOATMAP\n\tuniform sampler2D clearcoatMap;\n#endif\n#ifdef USE_CLEARCOAT_NORMALMAP\n\tuniform sampler2D clearcoatNormalMap;\n\tuniform vec2 clearcoatNormalScale;\n#endif\n#ifdef USE_CLEARCOAT_ROUGHNESSMAP\n\tuniform sampler2D clearcoatRoughnessMap;\n#endif",iridescence_pars_fragment:"#ifdef USE_IRIDESCENCEMAP\n\tuniform sampler2D iridescenceMap;\n#endif\n#ifdef USE_IRIDESCENCE_THICKNESSMAP\n\tuniform sampler2D iridescenceThicknessMap;\n#endif",opaque_fragment:"#ifdef OPAQUE\ndiffuseColor.a = 1.0;\n#endif\n#ifdef USE_TRANSMISSION\ndiffuseColor.a *= material.transmissionAlpha;\n#endif\ngl_FragColor = vec4( outgoingLight, diffuseColor.a );",packing:"vec3 packNormalToRGB( const in vec3 normal ) {\n\treturn normalize( normal ) * 0.5 + 0.5;\n}\nvec3 unpackRGBToNormal( const in vec3 rgb ) {\n\treturn 2.0 * rgb.xyz - 1.0;\n}\nconst float PackUpscale = 256. / 255.;const float UnpackDownscale = 255. / 256.;\nconst vec3 PackFactors = vec3( 256. * 256. * 256., 256. * 256., 256. );\nconst vec4 UnpackFactors = UnpackDownscale / vec4( PackFactors, 1. );\nconst float ShiftRight8 = 1. / 256.;\nvec4 packDepthToRGBA( const in float v ) {\n\tvec4 r = vec4( fract( v * PackFactors ), v );\n\tr.yzw -= r.xyz * ShiftRight8;\treturn r * PackUpscale;\n}\nfloat unpackRGBAToDepth( const in vec4 v ) {\n\treturn dot( v, UnpackFactors );\n}\nvec2 packDepthToRG( in highp float v ) {\n\treturn packDepthToRGBA( v ).yx;\n}\nfloat unpackRGToDepth( const in highp vec2 v ) {\n\treturn unpackRGBAToDepth( vec4( v.xy, 0.0, 0.0 ) );\n}\nvec4 pack2HalfToRGBA( vec2 v ) {\n\tvec4 r = vec4( v.x, fract( v.x * 255.0 ), v.y, fract( v.y * 255.0 ) );\n\treturn vec4( r.x - r.y / 255.0, r.y, r.z - r.w / 255.0, r.w );\n}\nvec2 unpackRGBATo2Half( vec4 v ) {\n\treturn vec2( v.x + ( v.y / 255.0 ), v.z + ( v.w / 255.0 ) );\n}\nfloat viewZToOrthographicDepth( const in float viewZ, const in float near, const in float far ) {\n\treturn ( viewZ + near ) / ( near - far );\n}\nfloat orthographicDepthToViewZ( const in float depth, const in float near, const in float far ) {\n\treturn depth * ( near - far ) - near;\n}\nfloat viewZToPerspectiveDepth( const in float viewZ, const in float near, const in float far ) {\n\treturn ( ( near + viewZ ) * far ) / ( ( far - near ) * viewZ );\n}\nfloat perspectiveDepthToViewZ( const in float depth, const in float near, const in float far ) {\n\treturn ( near * far ) / ( ( far - near ) * depth - far );\n}",premultiplied_alpha_fragment:"#ifdef PREMULTIPLIED_ALPHA\n\tgl_FragColor.rgb *= gl_FragColor.a;\n#endif",project_vertex:"vec4 mvPosition = vec4( transformed, 1.0 );\n#ifdef USE_INSTANCING\n\tmvPosition = instanceMatrix * mvPosition;\n#endif\nmvPosition = modelViewMatrix * mvPosition;\ngl_Position = projectionMatrix * mvPosition;",dithering_fragment:"#ifdef DITHERING\n\tgl_FragColor.rgb = dithering( gl_FragColor.rgb );\n#endif",dithering_pars_fragment:"#ifdef DITHERING\n\tvec3 dithering( vec3 color ) {\n\t\tfloat grid_position = rand( gl_FragCoord.xy );\n\t\tvec3 dither_shift_RGB = vec3( 0.25 / 255.0, -0.25 / 255.0, 0.25 / 255.0 );\n\t\tdither_shift_RGB = mix( 2.0 * dither_shift_RGB, -2.0 * dither_shift_RGB, grid_position );\n\t\treturn color + dither_shift_RGB;\n\t}\n#endif",roughnessmap_fragment:"float roughnessFactor = roughness;\n#ifdef USE_ROUGHNESSMAP\n\tvec4 texelRoughness = texture2D( roughnessMap, vRoughnessMapUv );\n\troughnessFactor *= texelRoughness.g;\n#endif",roughnessmap_pars_fragment:"#ifdef USE_ROUGHNESSMAP\n\tuniform sampler2D roughnessMap;\n#endif",shadowmap_pars_fragment:"#if NUM_SPOT_LIGHT_COORDS > 0\n\tvarying vec4 vSpotLightCoord[ NUM_SPOT_LIGHT_COORDS ];\n#endif\n#if NUM_SPOT_LIGHT_MAPS > 0\n\tuniform sampler2D spotLightMap[ NUM_SPOT_LIGHT_MAPS ];\n#endif\n#ifdef USE_SHADOWMAP\n\t#if NUM_DIR_LIGHT_SHADOWS > 0\n\t\tuniform sampler2D directionalShadowMap[ NUM_DIR_LIGHT_SHADOWS ];\n\t\tvarying vec4 vDirectionalShadowCoord[ NUM_DIR_LIGHT_SHADOWS ];\n\t\tstruct DirectionalLightShadow {\n\t\t\tfloat shadowBias;\n\t\t\tfloat shadowNormalBias;\n\t\t\tfloat shadowRadius;\n\t\t\tvec2 shadowMapSize;\n\t\t};\n\t\tuniform DirectionalLightShadow directionalLightShadows[ NUM_DIR_LIGHT_SHADOWS ];\n\t#endif\n\t#if NUM_SPOT_LIGHT_SHADOWS > 0\n\t\tuniform sampler2D spotShadowMap[ NUM_SPOT_LIGHT_SHADOWS ];\n\t\tstruct SpotLightShadow {\n\t\t\tfloat shadowBias;\n\t\t\tfloat shadowNormalBias;\n\t\t\tfloat shadowRadius;\n\t\t\tvec2 shadowMapSize;\n\t\t};\n\t\tuniform SpotLightShadow spotLightShadows[ NUM_SPOT_LIGHT_SHADOWS ];\n\t#endif\n\t#if NUM_POINT_LIGHT_SHADOWS > 0\n\t\tuniform sampler2D pointShadowMap[ NUM_POINT_LIGHT_SHADOWS ];\n\t\tvarying vec4 vPointShadowCoord[ NUM_POINT_LIGHT_SHADOWS ];\n\t\tstruct PointLightShadow {\n\t\t\tfloat shadowBias;\n\t\t\tfloat shadowNormalBias;\n\t\t\tfloat shadowRadius;\n\t\t\tvec2 shadowMapSize;\n\t\t\tfloat shadowCameraNear;\n\t\t\tfloat shadowCameraFar;\n\t\t};\n\t\tuniform PointLightShadow pointLightShadows[ NUM_POINT_LIGHT_SHADOWS ];\n\t#endif\n\tfloat texture2DCompare( sampler2D depths, vec2 uv, float compare ) {\n\t\treturn step( compare, unpackRGBAToDepth( texture2D( depths, uv ) ) );\n\t}\n\tvec2 texture2DDistribution( sampler2D shadow, vec2 uv ) {\n\t\treturn unpackRGBATo2Half( texture2D( shadow, uv ) );\n\t}\n\tfloat VSMShadow (sampler2D shadow, vec2 uv, float compare ){\n\t\tfloat occlusion = 1.0;\n\t\tvec2 distribution = texture2DDistribution( shadow, uv );\n\t\tfloat hard_shadow = step( compare , distribution.x );\n\t\tif (hard_shadow != 1.0 ) {\n\t\t\tfloat distance = compare - distribution.x ;\n\t\t\tfloat variance = max( 0.00000, distribution.y * distribution.y );\n\t\t\tfloat softness_probability = variance / (variance + distance * distance );\t\t\tsoftness_probability = clamp( ( softness_probability - 0.3 ) / ( 0.95 - 0.3 ), 0.0, 1.0 );\t\t\tocclusion = clamp( max( hard_shadow, softness_probability ), 0.0, 1.0 );\n\t\t}\n\t\treturn occlusion;\n\t}\n\tfloat getShadow( sampler2D shadowMap, vec2 shadowMapSize, float shadowBias, float shadowRadius, vec4 shadowCoord ) {\n\t\tfloat shadow = 1.0;\n\t\tshadowCoord.xyz /= shadowCoord.w;\n\t\tshadowCoord.z += shadowBias;\n\t\tbool inFrustum = shadowCoord.x >= 0.0 && shadowCoord.x <= 1.0 && shadowCoord.y >= 0.0 && shadowCoord.y <= 1.0;\n\t\tbool frustumTest = inFrustum && shadowCoord.z <= 1.0;\n\t\tif ( frustumTest ) {\n\t\t#if defined( SHADOWMAP_TYPE_PCF )\n\t\t\tvec2 texelSize = vec2( 1.0 ) / shadowMapSize;\n\t\t\tfloat dx0 = - texelSize.x * shadowRadius;\n\t\t\tfloat dy0 = - texelSize.y * shadowRadius;\n\t\t\tfloat dx1 = + texelSize.x * shadowRadius;\n\t\t\tfloat dy1 = + texelSize.y * shadowRadius;\n\t\t\tfloat dx2 = dx0 / 2.0;\n\t\t\tfloat dy2 = dy0 / 2.0;\n\t\t\tfloat dx3 = dx1 / 2.0;\n\t\t\tfloat dy3 = dy1 / 2.0;\n\t\t\tshadow = (\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( dx0, dy0 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( 0.0, dy0 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( dx1, dy0 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( dx2, dy2 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( 0.0, dy2 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( dx3, dy2 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( dx0, 0.0 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( dx2, 0.0 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy, shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( dx3, 0.0 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( dx1, 0.0 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( dx2, dy3 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( 0.0, dy3 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( dx3, dy3 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( dx0, dy1 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( 0.0, dy1 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( dx1, dy1 ), shadowCoord.z )\n\t\t\t) * ( 1.0 / 17.0 );\n\t\t#elif defined( SHADOWMAP_TYPE_PCF_SOFT )\n\t\t\tvec2 texelSize = vec2( 1.0 ) / shadowMapSize;\n\t\t\tfloat dx = texelSize.x;\n\t\t\tfloat dy = texelSize.y;\n\t\t\tvec2 uv = shadowCoord.xy;\n\t\t\tvec2 f = fract( uv * shadowMapSize + 0.5 );\n\t\t\tuv -= f * texelSize;\n\t\t\tshadow = (\n\t\t\t\ttexture2DCompare( shadowMap, uv, shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, uv + vec2( dx, 0.0 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, uv + vec2( 0.0, dy ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, uv + texelSize, shadowCoord.z ) +\n\t\t\t\tmix( texture2DCompare( shadowMap, uv + vec2( -dx, 0.0 ), shadowCoord.z ),\n\t\t\t\t\t texture2DCompare( shadowMap, uv + vec2( 2.0 * dx, 0.0 ), shadowCoord.z ),\n\t\t\t\t\t f.x ) +\n\t\t\t\tmix( texture2DCompare( shadowMap, uv + vec2( -dx, dy ), shadowCoord.z ),\n\t\t\t\t\t texture2DCompare( shadowMap, uv + vec2( 2.0 * dx, dy ), shadowCoord.z ),\n\t\t\t\t\t f.x ) +\n\t\t\t\tmix( texture2DCompare( shadowMap, uv + vec2( 0.0, -dy ), shadowCoord.z ),\n\t\t\t\t\t texture2DCompare( shadowMap, uv + vec2( 0.0, 2.0 * dy ), shadowCoord.z ),\n\t\t\t\t\t f.y ) +\n\t\t\t\tmix( texture2DCompare( shadowMap, uv + vec2( dx, -dy ), shadowCoord.z ),\n\t\t\t\t\t texture2DCompare( shadowMap, uv + vec2( dx, 2.0 * dy ), shadowCoord.z ),\n\t\t\t\t\t f.y ) +\n\t\t\t\tmix( mix( texture2DCompare( shadowMap, uv + vec2( -dx, -dy ), shadowCoord.z ),\n\t\t\t\t\t\t texture2DCompare( shadowMap, uv + vec2( 2.0 * dx, -dy ), shadowCoord.z ),\n\t\t\t\t\t\t f.x ),\n\t\t\t\t\t mix( texture2DCompare( shadowMap, uv + vec2( -dx, 2.0 * dy ), shadowCoord.z ),\n\t\t\t\t\t\t texture2DCompare( shadowMap, uv + vec2( 2.0 * dx, 2.0 * dy ), shadowCoord.z ),\n\t\t\t\t\t\t f.x ),\n\t\t\t\t\t f.y )\n\t\t\t) * ( 1.0 / 9.0 );\n\t\t#elif defined( SHADOWMAP_TYPE_VSM )\n\t\t\tshadow = VSMShadow( shadowMap, shadowCoord.xy, shadowCoord.z );\n\t\t#else\n\t\t\tshadow = texture2DCompare( shadowMap, shadowCoord.xy, shadowCoord.z );\n\t\t#endif\n\t\t}\n\t\treturn shadow;\n\t}\n\tvec2 cubeToUV( vec3 v, float texelSizeY ) {\n\t\tvec3 absV = abs( v );\n\t\tfloat scaleToCube = 1.0 / max( absV.x, max( absV.y, absV.z ) );\n\t\tabsV *= scaleToCube;\n\t\tv *= scaleToCube * ( 1.0 - 2.0 * texelSizeY );\n\t\tvec2 planar = v.xy;\n\t\tfloat almostATexel = 1.5 * texelSizeY;\n\t\tfloat almostOne = 1.0 - almostATexel;\n\t\tif ( absV.z >= almostOne ) {\n\t\t\tif ( v.z > 0.0 )\n\t\t\t\tplanar.x = 4.0 - v.x;\n\t\t} else if ( absV.x >= almostOne ) {\n\t\t\tfloat signX = sign( v.x );\n\t\t\tplanar.x = v.z * signX + 2.0 * signX;\n\t\t} else if ( absV.y >= almostOne ) {\n\t\t\tfloat signY = sign( v.y );\n\t\t\tplanar.x = v.x + 2.0 * signY + 2.0;\n\t\t\tplanar.y = v.z * signY - 2.0;\n\t\t}\n\t\treturn vec2( 0.125, 0.25 ) * planar + vec2( 0.375, 0.75 );\n\t}\n\tfloat getPointShadow( sampler2D shadowMap, vec2 shadowMapSize, float shadowBias, float shadowRadius, vec4 shadowCoord, float shadowCameraNear, float shadowCameraFar ) {\n\t\tvec2 texelSize = vec2( 1.0 ) / ( shadowMapSize * vec2( 4.0, 2.0 ) );\n\t\tvec3 lightToPosition = shadowCoord.xyz;\n\t\tfloat dp = ( length( lightToPosition ) - shadowCameraNear ) / ( shadowCameraFar - shadowCameraNear );\t\tdp += shadowBias;\n\t\tvec3 bd3D = normalize( lightToPosition );\n\t\t#if defined( SHADOWMAP_TYPE_PCF ) || defined( SHADOWMAP_TYPE_PCF_SOFT ) || defined( SHADOWMAP_TYPE_VSM )\n\t\t\tvec2 offset = vec2( - 1, 1 ) * shadowRadius * texelSize.y;\n\t\t\treturn (\n\t\t\t\ttexture2DCompare( shadowMap, cubeToUV( bd3D + offset.xyy, texelSize.y ), dp ) +\n\t\t\t\ttexture2DCompare( shadowMap, cubeToUV( bd3D + offset.yyy, texelSize.y ), dp ) +\n\t\t\t\ttexture2DCompare( shadowMap, cubeToUV( bd3D + offset.xyx, texelSize.y ), dp ) +\n\t\t\t\ttexture2DCompare( shadowMap, cubeToUV( bd3D + offset.yyx, texelSize.y ), dp ) +\n\t\t\t\ttexture2DCompare( shadowMap, cubeToUV( bd3D, texelSize.y ), dp ) +\n\t\t\t\ttexture2DCompare( shadowMap, cubeToUV( bd3D + offset.xxy, texelSize.y ), dp ) +\n\t\t\t\ttexture2DCompare( shadowMap, cubeToUV( bd3D + offset.yxy, texelSize.y ), dp ) +\n\t\t\t\ttexture2DCompare( shadowMap, cubeToUV( bd3D + offset.xxx, texelSize.y ), dp ) +\n\t\t\t\ttexture2DCompare( shadowMap, cubeToUV( bd3D + offset.yxx, texelSize.y ), dp )\n\t\t\t) * ( 1.0 / 9.0 );\n\t\t#else\n\t\t\treturn texture2DCompare( shadowMap, cubeToUV( bd3D, texelSize.y ), dp );\n\t\t#endif\n\t}\n#endif",shadowmap_pars_vertex:"#if NUM_SPOT_LIGHT_COORDS > 0\n\tuniform mat4 spotLightMatrix[ NUM_SPOT_LIGHT_COORDS ];\n\tvarying vec4 vSpotLightCoord[ NUM_SPOT_LIGHT_COORDS ];\n#endif\n#ifdef USE_SHADOWMAP\n\t#if NUM_DIR_LIGHT_SHADOWS > 0\n\t\tuniform mat4 directionalShadowMatrix[ NUM_DIR_LIGHT_SHADOWS ];\n\t\tvarying vec4 vDirectionalShadowCoord[ NUM_DIR_LIGHT_SHADOWS ];\n\t\tstruct DirectionalLightShadow {\n\t\t\tfloat shadowBias;\n\t\t\tfloat shadowNormalBias;\n\t\t\tfloat shadowRadius;\n\t\t\tvec2 shadowMapSize;\n\t\t};\n\t\tuniform DirectionalLightShadow directionalLightShadows[ NUM_DIR_LIGHT_SHADOWS ];\n\t#endif\n\t#if NUM_SPOT_LIGHT_SHADOWS > 0\n\t\tstruct SpotLightShadow {\n\t\t\tfloat shadowBias;\n\t\t\tfloat shadowNormalBias;\n\t\t\tfloat shadowRadius;\n\t\t\tvec2 shadowMapSize;\n\t\t};\n\t\tuniform SpotLightShadow spotLightShadows[ NUM_SPOT_LIGHT_SHADOWS ];\n\t#endif\n\t#if NUM_POINT_LIGHT_SHADOWS > 0\n\t\tuniform mat4 pointShadowMatrix[ NUM_POINT_LIGHT_SHADOWS ];\n\t\tvarying vec4 vPointShadowCoord[ NUM_POINT_LIGHT_SHADOWS ];\n\t\tstruct PointLightShadow {\n\t\t\tfloat shadowBias;\n\t\t\tfloat shadowNormalBias;\n\t\t\tfloat shadowRadius;\n\t\t\tvec2 shadowMapSize;\n\t\t\tfloat shadowCameraNear;\n\t\t\tfloat shadowCameraFar;\n\t\t};\n\t\tuniform PointLightShadow pointLightShadows[ NUM_POINT_LIGHT_SHADOWS ];\n\t#endif\n#endif",shadowmap_vertex:"#if ( defined( USE_SHADOWMAP ) && ( NUM_DIR_LIGHT_SHADOWS > 0 || NUM_POINT_LIGHT_SHADOWS > 0 ) ) || ( NUM_SPOT_LIGHT_COORDS > 0 )\n\tvec3 shadowWorldNormal = inverseTransformDirection( transformedNormal, viewMatrix );\n\tvec4 shadowWorldPosition;\n#endif\n#if defined( USE_SHADOWMAP )\n\t#if NUM_DIR_LIGHT_SHADOWS > 0\n\t\t#pragma unroll_loop_start\n\t\tfor ( int i = 0; i < NUM_DIR_LIGHT_SHADOWS; i ++ ) {\n\t\t\tshadowWorldPosition = worldPosition + vec4( shadowWorldNormal * directionalLightShadows[ i ].shadowNormalBias, 0 );\n\t\t\tvDirectionalShadowCoord[ i ] = directionalShadowMatrix[ i ] * shadowWorldPosition;\n\t\t}\n\t\t#pragma unroll_loop_end\n\t#endif\n\t#if NUM_POINT_LIGHT_SHADOWS > 0\n\t\t#pragma unroll_loop_start\n\t\tfor ( int i = 0; i < NUM_POINT_LIGHT_SHADOWS; i ++ ) {\n\t\t\tshadowWorldPosition = worldPosition + vec4( shadowWorldNormal * pointLightShadows[ i ].shadowNormalBias, 0 );\n\t\t\tvPointShadowCoord[ i ] = pointShadowMatrix[ i ] * shadowWorldPosition;\n\t\t}\n\t\t#pragma unroll_loop_end\n\t#endif\n#endif\n#if NUM_SPOT_LIGHT_COORDS > 0\n\t#pragma unroll_loop_start\n\tfor ( int i = 0; i < NUM_SPOT_LIGHT_COORDS; i ++ ) {\n\t\tshadowWorldPosition = worldPosition;\n\t\t#if ( defined( USE_SHADOWMAP ) && UNROLLED_LOOP_INDEX < NUM_SPOT_LIGHT_SHADOWS )\n\t\t\tshadowWorldPosition.xyz += shadowWorldNormal * spotLightShadows[ i ].shadowNormalBias;\n\t\t#endif\n\t\tvSpotLightCoord[ i ] = spotLightMatrix[ i ] * shadowWorldPosition;\n\t}\n\t#pragma unroll_loop_end\n#endif",shadowmask_pars_fragment:"float getShadowMask() {\n\tfloat shadow = 1.0;\n\t#ifdef USE_SHADOWMAP\n\t#if NUM_DIR_LIGHT_SHADOWS > 0\n\tDirectionalLightShadow directionalLight;\n\t#pragma unroll_loop_start\n\tfor ( int i = 0; i < NUM_DIR_LIGHT_SHADOWS; i ++ ) {\n\t\tdirectionalLight = directionalLightShadows[ i ];\n\t\tshadow *= receiveShadow ? getShadow( directionalShadowMap[ i ], directionalLight.shadowMapSize, directionalLight.shadowBias, directionalLight.shadowRadius, vDirectionalShadowCoord[ i ] ) : 1.0;\n\t}\n\t#pragma unroll_loop_end\n\t#endif\n\t#if NUM_SPOT_LIGHT_SHADOWS > 0\n\tSpotLightShadow spotLight;\n\t#pragma unroll_loop_start\n\tfor ( int i = 0; i < NUM_SPOT_LIGHT_SHADOWS; i ++ ) {\n\t\tspotLight = spotLightShadows[ i ];\n\t\tshadow *= receiveShadow ? getShadow( spotShadowMap[ i ], spotLight.shadowMapSize, spotLight.shadowBias, spotLight.shadowRadius, vSpotLightCoord[ i ] ) : 1.0;\n\t}\n\t#pragma unroll_loop_end\n\t#endif\n\t#if NUM_POINT_LIGHT_SHADOWS > 0\n\tPointLightShadow pointLight;\n\t#pragma unroll_loop_start\n\tfor ( int i = 0; i < NUM_POINT_LIGHT_SHADOWS; i ++ ) {\n\t\tpointLight = pointLightShadows[ i ];\n\t\tshadow *= receiveShadow ? getPointShadow( pointShadowMap[ i ], pointLight.shadowMapSize, pointLight.shadowBias, pointLight.shadowRadius, vPointShadowCoord[ i ], pointLight.shadowCameraNear, pointLight.shadowCameraFar ) : 1.0;\n\t}\n\t#pragma unroll_loop_end\n\t#endif\n\t#endif\n\treturn shadow;\n}",skinbase_vertex:"#ifdef USE_SKINNING\n\tmat4 boneMatX = getBoneMatrix( skinIndex.x );\n\tmat4 boneMatY = getBoneMatrix( skinIndex.y );\n\tmat4 boneMatZ = getBoneMatrix( skinIndex.z );\n\tmat4 boneMatW = getBoneMatrix( skinIndex.w );\n#endif",skinning_pars_vertex:"#ifdef USE_SKINNING\n\tuniform mat4 bindMatrix;\n\tuniform mat4 bindMatrixInverse;\n\tuniform highp sampler2D boneTexture;\n\tuniform int boneTextureSize;\n\tmat4 getBoneMatrix( const in float i ) {\n\t\tfloat j = i * 4.0;\n\t\tfloat x = mod( j, float( boneTextureSize ) );\n\t\tfloat y = floor( j / float( boneTextureSize ) );\n\t\tfloat dx = 1.0 / float( boneTextureSize );\n\t\tfloat dy = 1.0 / float( boneTextureSize );\n\t\ty = dy * ( y + 0.5 );\n\t\tvec4 v1 = texture2D( boneTexture, vec2( dx * ( x + 0.5 ), y ) );\n\t\tvec4 v2 = texture2D( boneTexture, vec2( dx * ( x + 1.5 ), y ) );\n\t\tvec4 v3 = texture2D( boneTexture, vec2( dx * ( x + 2.5 ), y ) );\n\t\tvec4 v4 = texture2D( boneTexture, vec2( dx * ( x + 3.5 ), y ) );\n\t\tmat4 bone = mat4( v1, v2, v3, v4 );\n\t\treturn bone;\n\t}\n#endif",skinning_vertex:"#ifdef USE_SKINNING\n\tvec4 skinVertex = bindMatrix * vec4( transformed, 1.0 );\n\tvec4 skinned = vec4( 0.0 );\n\tskinned += boneMatX * skinVertex * skinWeight.x;\n\tskinned += boneMatY * skinVertex * skinWeight.y;\n\tskinned += boneMatZ * skinVertex * skinWeight.z;\n\tskinned += boneMatW * skinVertex * skinWeight.w;\n\ttransformed = ( bindMatrixInverse * skinned ).xyz;\n#endif",skinnormal_vertex:"#ifdef USE_SKINNING\n\tmat4 skinMatrix = mat4( 0.0 );\n\tskinMatrix += skinWeight.x * boneMatX;\n\tskinMatrix += skinWeight.y * boneMatY;\n\tskinMatrix += skinWeight.z * boneMatZ;\n\tskinMatrix += skinWeight.w * boneMatW;\n\tskinMatrix = bindMatrixInverse * skinMatrix * bindMatrix;\n\tobjectNormal = vec4( skinMatrix * vec4( objectNormal, 0.0 ) ).xyz;\n\t#ifdef USE_TANGENT\n\t\tobjectTangent = vec4( skinMatrix * vec4( objectTangent, 0.0 ) ).xyz;\n\t#endif\n#endif",specularmap_fragment:"float specularStrength;\n#ifdef USE_SPECULARMAP\n\tvec4 texelSpecular = texture2D( specularMap, vSpecularMapUv );\n\tspecularStrength = texelSpecular.r;\n#else\n\tspecularStrength = 1.0;\n#endif",specularmap_pars_fragment:"#ifdef USE_SPECULARMAP\n\tuniform sampler2D specularMap;\n#endif",tonemapping_fragment:"#if defined( TONE_MAPPING )\n\tgl_FragColor.rgb = toneMapping( gl_FragColor.rgb );\n#endif",tonemapping_pars_fragment:"#ifndef saturate\n#define saturate( a ) clamp( a, 0.0, 1.0 )\n#endif\nuniform float toneMappingExposure;\nvec3 LinearToneMapping( vec3 color ) {\n\treturn saturate( toneMappingExposure * color );\n}\nvec3 ReinhardToneMapping( vec3 color ) {\n\tcolor *= toneMappingExposure;\n\treturn saturate( color / ( vec3( 1.0 ) + color ) );\n}\nvec3 OptimizedCineonToneMapping( vec3 color ) {\n\tcolor *= toneMappingExposure;\n\tcolor = max( vec3( 0.0 ), color - 0.004 );\n\treturn pow( ( color * ( 6.2 * color + 0.5 ) ) / ( color * ( 6.2 * color + 1.7 ) + 0.06 ), vec3( 2.2 ) );\n}\nvec3 RRTAndODTFit( vec3 v ) {\n\tvec3 a = v * ( v + 0.0245786 ) - 0.000090537;\n\tvec3 b = v * ( 0.983729 * v + 0.4329510 ) + 0.238081;\n\treturn a / b;\n}\nvec3 ACESFilmicToneMapping( vec3 color ) {\n\tconst mat3 ACESInputMat = mat3(\n\t\tvec3( 0.59719, 0.07600, 0.02840 ),\t\tvec3( 0.35458, 0.90834, 0.13383 ),\n\t\tvec3( 0.04823, 0.01566, 0.83777 )\n\t);\n\tconst mat3 ACESOutputMat = mat3(\n\t\tvec3( 1.60475, -0.10208, -0.00327 ),\t\tvec3( -0.53108, 1.10813, -0.07276 ),\n\t\tvec3( -0.07367, -0.00605, 1.07602 )\n\t);\n\tcolor *= toneMappingExposure / 0.6;\n\tcolor = ACESInputMat * color;\n\tcolor = RRTAndODTFit( color );\n\tcolor = ACESOutputMat * color;\n\treturn saturate( color );\n}\nvec3 CustomToneMapping( vec3 color ) { return color; }",transmission_fragment:"#ifdef USE_TRANSMISSION\n\tmaterial.transmission = transmission;\n\tmaterial.transmissionAlpha = 1.0;\n\tmaterial.thickness = thickness;\n\tmaterial.attenuationDistance = attenuationDistance;\n\tmaterial.attenuationColor = attenuationColor;\n\t#ifdef USE_TRANSMISSIONMAP\n\t\tmaterial.transmission *= texture2D( transmissionMap, vTransmissionMapUv ).r;\n\t#endif\n\t#ifdef USE_THICKNESSMAP\n\t\tmaterial.thickness *= texture2D( thicknessMap, vThicknessMapUv ).g;\n\t#endif\n\tvec3 pos = vWorldPosition;\n\tvec3 v = normalize( cameraPosition - pos );\n\tvec3 n = inverseTransformDirection( normal, viewMatrix );\n\tvec4 transmitted = getIBLVolumeRefraction(\n\t\tn, v, material.roughness, material.diffuseColor, material.specularColor, material.specularF90,\n\t\tpos, modelMatrix, viewMatrix, projectionMatrix, material.ior, material.thickness,\n\t\tmaterial.attenuationColor, material.attenuationDistance );\n\tmaterial.transmissionAlpha = mix( material.transmissionAlpha, transmitted.a, material.transmission );\n\ttotalDiffuse = mix( totalDiffuse, transmitted.rgb, material.transmission );\n#endif",transmission_pars_fragment:"#ifdef USE_TRANSMISSION\n\tuniform float transmission;\n\tuniform float thickness;\n\tuniform float attenuationDistance;\n\tuniform vec3 attenuationColor;\n\t#ifdef USE_TRANSMISSIONMAP\n\t\tuniform sampler2D transmissionMap;\n\t#endif\n\t#ifdef USE_THICKNESSMAP\n\t\tuniform sampler2D thicknessMap;\n\t#endif\n\tuniform vec2 transmissionSamplerSize;\n\tuniform sampler2D transmissionSamplerMap;\n\tuniform mat4 modelMatrix;\n\tuniform mat4 projectionMatrix;\n\tvarying vec3 vWorldPosition;\n\tfloat w0( float a ) {\n\t\treturn ( 1.0 / 6.0 ) * ( a * ( a * ( - a + 3.0 ) - 3.0 ) + 1.0 );\n\t}\n\tfloat w1( float a ) {\n\t\treturn ( 1.0 / 6.0 ) * ( a * a * ( 3.0 * a - 6.0 ) + 4.0 );\n\t}\n\tfloat w2( float a ){\n\t\treturn ( 1.0 / 6.0 ) * ( a * ( a * ( - 3.0 * a + 3.0 ) + 3.0 ) + 1.0 );\n\t}\n\tfloat w3( float a ) {\n\t\treturn ( 1.0 / 6.0 ) * ( a * a * a );\n\t}\n\tfloat g0( float a ) {\n\t\treturn w0( a ) + w1( a );\n\t}\n\tfloat g1( float a ) {\n\t\treturn w2( a ) + w3( a );\n\t}\n\tfloat h0( float a ) {\n\t\treturn - 1.0 + w1( a ) / ( w0( a ) + w1( a ) );\n\t}\n\tfloat h1( float a ) {\n\t\treturn 1.0 + w3( a ) / ( w2( a ) + w3( a ) );\n\t}\n\tvec4 bicubic( sampler2D tex, vec2 uv, vec4 texelSize, float lod ) {\n\t\tuv = uv * texelSize.zw + 0.5;\n\t\tvec2 iuv = floor( uv );\n\t\tvec2 fuv = fract( uv );\n\t\tfloat g0x = g0( fuv.x );\n\t\tfloat g1x = g1( fuv.x );\n\t\tfloat h0x = h0( fuv.x );\n\t\tfloat h1x = h1( fuv.x );\n\t\tfloat h0y = h0( fuv.y );\n\t\tfloat h1y = h1( fuv.y );\n\t\tvec2 p0 = ( vec2( iuv.x + h0x, iuv.y + h0y ) - 0.5 ) * texelSize.xy;\n\t\tvec2 p1 = ( vec2( iuv.x + h1x, iuv.y + h0y ) - 0.5 ) * texelSize.xy;\n\t\tvec2 p2 = ( vec2( iuv.x + h0x, iuv.y + h1y ) - 0.5 ) * texelSize.xy;\n\t\tvec2 p3 = ( vec2( iuv.x + h1x, iuv.y + h1y ) - 0.5 ) * texelSize.xy;\n\t\treturn g0( fuv.y ) * ( g0x * textureLod( tex, p0, lod ) + g1x * textureLod( tex, p1, lod ) ) +\n\t\t\tg1( fuv.y ) * ( g0x * textureLod( tex, p2, lod ) + g1x * textureLod( tex, p3, lod ) );\n\t}\n\tvec4 textureBicubic( sampler2D sampler, vec2 uv, float lod ) {\n\t\tvec2 fLodSize = vec2( textureSize( sampler, int( lod ) ) );\n\t\tvec2 cLodSize = vec2( textureSize( sampler, int( lod + 1.0 ) ) );\n\t\tvec2 fLodSizeInv = 1.0 / fLodSize;\n\t\tvec2 cLodSizeInv = 1.0 / cLodSize;\n\t\tvec4 fSample = bicubic( sampler, uv, vec4( fLodSizeInv, fLodSize ), floor( lod ) );\n\t\tvec4 cSample = bicubic( sampler, uv, vec4( cLodSizeInv, cLodSize ), ceil( lod ) );\n\t\treturn mix( fSample, cSample, fract( lod ) );\n\t}\n\tvec3 getVolumeTransmissionRay( const in vec3 n, const in vec3 v, const in float thickness, const in float ior, const in mat4 modelMatrix ) {\n\t\tvec3 refractionVector = refract( - v, normalize( n ), 1.0 / ior );\n\t\tvec3 modelScale;\n\t\tmodelScale.x = length( vec3( modelMatrix[ 0 ].xyz ) );\n\t\tmodelScale.y = length( vec3( modelMatrix[ 1 ].xyz ) );\n\t\tmodelScale.z = length( vec3( modelMatrix[ 2 ].xyz ) );\n\t\treturn normalize( refractionVector ) * thickness * modelScale;\n\t}\n\tfloat applyIorToRoughness( const in float roughness, const in float ior ) {\n\t\treturn roughness * clamp( ior * 2.0 - 2.0, 0.0, 1.0 );\n\t}\n\tvec4 getTransmissionSample( const in vec2 fragCoord, const in float roughness, const in float ior ) {\n\t\tfloat lod = log2( transmissionSamplerSize.x ) * applyIorToRoughness( roughness, ior );\n\t\treturn textureBicubic( transmissionSamplerMap, fragCoord.xy, lod );\n\t}\n\tvec3 volumeAttenuation( const in float transmissionDistance, const in vec3 attenuationColor, const in float attenuationDistance ) {\n\t\tif ( isinf( attenuationDistance ) ) {\n\t\t\treturn vec3( 1.0 );\n\t\t} else {\n\t\t\tvec3 attenuationCoefficient = -log( attenuationColor ) / attenuationDistance;\n\t\t\tvec3 transmittance = exp( - attenuationCoefficient * transmissionDistance );\t\t\treturn transmittance;\n\t\t}\n\t}\n\tvec4 getIBLVolumeRefraction( const in vec3 n, const in vec3 v, const in float roughness, const in vec3 diffuseColor,\n\t\tconst in vec3 specularColor, const in float specularF90, const in vec3 position, const in mat4 modelMatrix,\n\t\tconst in mat4 viewMatrix, const in mat4 projMatrix, const in float ior, const in float thickness,\n\t\tconst in vec3 attenuationColor, const in float attenuationDistance ) {\n\t\tvec3 transmissionRay = getVolumeTransmissionRay( n, v, thickness, ior, modelMatrix );\n\t\tvec3 refractedRayExit = position + transmissionRay;\n\t\tvec4 ndcPos = projMatrix * viewMatrix * vec4( refractedRayExit, 1.0 );\n\t\tvec2 refractionCoords = ndcPos.xy / ndcPos.w;\n\t\trefractionCoords += 1.0;\n\t\trefractionCoords /= 2.0;\n\t\tvec4 transmittedLight = getTransmissionSample( refractionCoords, roughness, ior );\n\t\tvec3 transmittance = diffuseColor * volumeAttenuation( length( transmissionRay ), attenuationColor, attenuationDistance );\n\t\tvec3 attenuatedColor = transmittance * transmittedLight.rgb;\n\t\tvec3 F = EnvironmentBRDF( n, v, specularColor, specularF90, roughness );\n\t\tfloat transmittanceFactor = ( transmittance.r + transmittance.g + transmittance.b ) / 3.0;\n\t\treturn vec4( ( 1.0 - F ) * attenuatedColor, 1.0 - ( 1.0 - transmittedLight.a ) * transmittanceFactor );\n\t}\n#endif",uv_pars_fragment:"#if defined( USE_UV ) || defined( USE_ANISOTROPY )\n\tvarying vec2 vUv;\n#endif\n#ifdef USE_MAP\n\tvarying vec2 vMapUv;\n#endif\n#ifdef USE_ALPHAMAP\n\tvarying vec2 vAlphaMapUv;\n#endif\n#ifdef USE_LIGHTMAP\n\tvarying vec2 vLightMapUv;\n#endif\n#ifdef USE_AOMAP\n\tvarying vec2 vAoMapUv;\n#endif\n#ifdef USE_BUMPMAP\n\tvarying vec2 vBumpMapUv;\n#endif\n#ifdef USE_NORMALMAP\n\tvarying vec2 vNormalMapUv;\n#endif\n#ifdef USE_EMISSIVEMAP\n\tvarying vec2 vEmissiveMapUv;\n#endif\n#ifdef USE_METALNESSMAP\n\tvarying vec2 vMetalnessMapUv;\n#endif\n#ifdef USE_ROUGHNESSMAP\n\tvarying vec2 vRoughnessMapUv;\n#endif\n#ifdef USE_ANISOTROPYMAP\n\tvarying vec2 vAnisotropyMapUv;\n#endif\n#ifdef USE_CLEARCOATMAP\n\tvarying vec2 vClearcoatMapUv;\n#endif\n#ifdef USE_CLEARCOAT_NORMALMAP\n\tvarying vec2 vClearcoatNormalMapUv;\n#endif\n#ifdef USE_CLEARCOAT_ROUGHNESSMAP\n\tvarying vec2 vClearcoatRoughnessMapUv;\n#endif\n#ifdef USE_IRIDESCENCEMAP\n\tvarying vec2 vIridescenceMapUv;\n#endif\n#ifdef USE_IRIDESCENCE_THICKNESSMAP\n\tvarying vec2 vIridescenceThicknessMapUv;\n#endif\n#ifdef USE_SHEEN_COLORMAP\n\tvarying vec2 vSheenColorMapUv;\n#endif\n#ifdef USE_SHEEN_ROUGHNESSMAP\n\tvarying vec2 vSheenRoughnessMapUv;\n#endif\n#ifdef USE_SPECULARMAP\n\tvarying vec2 vSpecularMapUv;\n#endif\n#ifdef USE_SPECULAR_COLORMAP\n\tvarying vec2 vSpecularColorMapUv;\n#endif\n#ifdef USE_SPECULAR_INTENSITYMAP\n\tvarying vec2 vSpecularIntensityMapUv;\n#endif\n#ifdef USE_TRANSMISSIONMAP\n\tuniform mat3 transmissionMapTransform;\n\tvarying vec2 vTransmissionMapUv;\n#endif\n#ifdef USE_THICKNESSMAP\n\tuniform mat3 thicknessMapTransform;\n\tvarying vec2 vThicknessMapUv;\n#endif",uv_pars_vertex:"#if defined( USE_UV ) || defined( USE_ANISOTROPY )\n\tvarying vec2 vUv;\n#endif\n#ifdef USE_MAP\n\tuniform mat3 mapTransform;\n\tvarying vec2 vMapUv;\n#endif\n#ifdef USE_ALPHAMAP\n\tuniform mat3 alphaMapTransform;\n\tvarying vec2 vAlphaMapUv;\n#endif\n#ifdef USE_LIGHTMAP\n\tuniform mat3 lightMapTransform;\n\tvarying vec2 vLightMapUv;\n#endif\n#ifdef USE_AOMAP\n\tuniform mat3 aoMapTransform;\n\tvarying vec2 vAoMapUv;\n#endif\n#ifdef USE_BUMPMAP\n\tuniform mat3 bumpMapTransform;\n\tvarying vec2 vBumpMapUv;\n#endif\n#ifdef USE_NORMALMAP\n\tuniform mat3 normalMapTransform;\n\tvarying vec2 vNormalMapUv;\n#endif\n#ifdef USE_DISPLACEMENTMAP\n\tuniform mat3 displacementMapTransform;\n\tvarying vec2 vDisplacementMapUv;\n#endif\n#ifdef USE_EMISSIVEMAP\n\tuniform mat3 emissiveMapTransform;\n\tvarying vec2 vEmissiveMapUv;\n#endif\n#ifdef USE_METALNESSMAP\n\tuniform mat3 metalnessMapTransform;\n\tvarying vec2 vMetalnessMapUv;\n#endif\n#ifdef USE_ROUGHNESSMAP\n\tuniform mat3 roughnessMapTransform;\n\tvarying vec2 vRoughnessMapUv;\n#endif\n#ifdef USE_ANISOTROPYMAP\n\tuniform mat3 anisotropyMapTransform;\n\tvarying vec2 vAnisotropyMapUv;\n#endif\n#ifdef USE_CLEARCOATMAP\n\tuniform mat3 clearcoatMapTransform;\n\tvarying vec2 vClearcoatMapUv;\n#endif\n#ifdef USE_CLEARCOAT_NORMALMAP\n\tuniform mat3 clearcoatNormalMapTransform;\n\tvarying vec2 vClearcoatNormalMapUv;\n#endif\n#ifdef USE_CLEARCOAT_ROUGHNESSMAP\n\tuniform mat3 clearcoatRoughnessMapTransform;\n\tvarying vec2 vClearcoatRoughnessMapUv;\n#endif\n#ifdef USE_SHEEN_COLORMAP\n\tuniform mat3 sheenColorMapTransform;\n\tvarying vec2 vSheenColorMapUv;\n#endif\n#ifdef USE_SHEEN_ROUGHNESSMAP\n\tuniform mat3 sheenRoughnessMapTransform;\n\tvarying vec2 vSheenRoughnessMapUv;\n#endif\n#ifdef USE_IRIDESCENCEMAP\n\tuniform mat3 iridescenceMapTransform;\n\tvarying vec2 vIridescenceMapUv;\n#endif\n#ifdef USE_IRIDESCENCE_THICKNESSMAP\n\tuniform mat3 iridescenceThicknessMapTransform;\n\tvarying vec2 vIridescenceThicknessMapUv;\n#endif\n#ifdef USE_SPECULARMAP\n\tuniform mat3 specularMapTransform;\n\tvarying vec2 vSpecularMapUv;\n#endif\n#ifdef USE_SPECULAR_COLORMAP\n\tuniform mat3 specularColorMapTransform;\n\tvarying vec2 vSpecularColorMapUv;\n#endif\n#ifdef USE_SPECULAR_INTENSITYMAP\n\tuniform mat3 specularIntensityMapTransform;\n\tvarying vec2 vSpecularIntensityMapUv;\n#endif\n#ifdef USE_TRANSMISSIONMAP\n\tuniform mat3 transmissionMapTransform;\n\tvarying vec2 vTransmissionMapUv;\n#endif\n#ifdef USE_THICKNESSMAP\n\tuniform mat3 thicknessMapTransform;\n\tvarying vec2 vThicknessMapUv;\n#endif",uv_vertex:"#if defined( USE_UV ) || defined( USE_ANISOTROPY )\n\tvUv = vec3( uv, 1 ).xy;\n#endif\n#ifdef USE_MAP\n\tvMapUv = ( mapTransform * vec3( MAP_UV, 1 ) ).xy;\n#endif\n#ifdef USE_ALPHAMAP\n\tvAlphaMapUv = ( alphaMapTransform * vec3( ALPHAMAP_UV, 1 ) ).xy;\n#endif\n#ifdef USE_LIGHTMAP\n\tvLightMapUv = ( lightMapTransform * vec3( LIGHTMAP_UV, 1 ) ).xy;\n#endif\n#ifdef USE_AOMAP\n\tvAoMapUv = ( aoMapTransform * vec3( AOMAP_UV, 1 ) ).xy;\n#endif\n#ifdef USE_BUMPMAP\n\tvBumpMapUv = ( bumpMapTransform * vec3( BUMPMAP_UV, 1 ) ).xy;\n#endif\n#ifdef USE_NORMALMAP\n\tvNormalMapUv = ( normalMapTransform * vec3( NORMALMAP_UV, 1 ) ).xy;\n#endif\n#ifdef USE_DISPLACEMENTMAP\n\tvDisplacementMapUv = ( displacementMapTransform * vec3( DISPLACEMENTMAP_UV, 1 ) ).xy;\n#endif\n#ifdef USE_EMISSIVEMAP\n\tvEmissiveMapUv = ( emissiveMapTransform * vec3( EMISSIVEMAP_UV, 1 ) ).xy;\n#endif\n#ifdef USE_METALNESSMAP\n\tvMetalnessMapUv = ( metalnessMapTransform * vec3( METALNESSMAP_UV, 1 ) ).xy;\n#endif\n#ifdef USE_ROUGHNESSMAP\n\tvRoughnessMapUv = ( roughnessMapTransform * vec3( ROUGHNESSMAP_UV, 1 ) ).xy;\n#endif\n#ifdef USE_ANISOTROPYMAP\n\tvAnisotropyMapUv = ( anisotropyMapTransform * vec3( ANISOTROPYMAP_UV, 1 ) ).xy;\n#endif\n#ifdef USE_CLEARCOATMAP\n\tvClearcoatMapUv = ( clearcoatMapTransform * vec3( CLEARCOATMAP_UV, 1 ) ).xy;\n#endif\n#ifdef USE_CLEARCOAT_NORMALMAP\n\tvClearcoatNormalMapUv = ( clearcoatNormalMapTransform * vec3( CLEARCOAT_NORMALMAP_UV, 1 ) ).xy;\n#endif\n#ifdef USE_CLEARCOAT_ROUGHNESSMAP\n\tvClearcoatRoughnessMapUv = ( clearcoatRoughnessMapTransform * vec3( CLEARCOAT_ROUGHNESSMAP_UV, 1 ) ).xy;\n#endif\n#ifdef USE_IRIDESCENCEMAP\n\tvIridescenceMapUv = ( iridescenceMapTransform * vec3( IRIDESCENCEMAP_UV, 1 ) ).xy;\n#endif\n#ifdef USE_IRIDESCENCE_THICKNESSMAP\n\tvIridescenceThicknessMapUv = ( iridescenceThicknessMapTransform * vec3( IRIDESCENCE_THICKNESSMAP_UV, 1 ) ).xy;\n#endif\n#ifdef USE_SHEEN_COLORMAP\n\tvSheenColorMapUv = ( sheenColorMapTransform * vec3( SHEEN_COLORMAP_UV, 1 ) ).xy;\n#endif\n#ifdef USE_SHEEN_ROUGHNESSMAP\n\tvSheenRoughnessMapUv = ( sheenRoughnessMapTransform * vec3( SHEEN_ROUGHNESSMAP_UV, 1 ) ).xy;\n#endif\n#ifdef USE_SPECULARMAP\n\tvSpecularMapUv = ( specularMapTransform * vec3( SPECULARMAP_UV, 1 ) ).xy;\n#endif\n#ifdef USE_SPECULAR_COLORMAP\n\tvSpecularColorMapUv = ( specularColorMapTransform * vec3( SPECULAR_COLORMAP_UV, 1 ) ).xy;\n#endif\n#ifdef USE_SPECULAR_INTENSITYMAP\n\tvSpecularIntensityMapUv = ( specularIntensityMapTransform * vec3( SPECULAR_INTENSITYMAP_UV, 1 ) ).xy;\n#endif\n#ifdef USE_TRANSMISSIONMAP\n\tvTransmissionMapUv = ( transmissionMapTransform * vec3( TRANSMISSIONMAP_UV, 1 ) ).xy;\n#endif\n#ifdef USE_THICKNESSMAP\n\tvThicknessMapUv = ( thicknessMapTransform * vec3( THICKNESSMAP_UV, 1 ) ).xy;\n#endif",worldpos_vertex:"#if defined( USE_ENVMAP ) || defined( DISTANCE ) || defined ( USE_SHADOWMAP ) || defined ( USE_TRANSMISSION ) || NUM_SPOT_LIGHT_COORDS > 0\n\tvec4 worldPosition = vec4( transformed, 1.0 );\n\t#ifdef USE_INSTANCING\n\t\tworldPosition = instanceMatrix * worldPosition;\n\t#endif\n\tworldPosition = modelMatrix * worldPosition;\n#endif",background_vert:"varying vec2 vUv;\nuniform mat3 uvTransform;\nvoid main() {\n\tvUv = ( uvTransform * vec3( uv, 1 ) ).xy;\n\tgl_Position = vec4( position.xy, 1.0, 1.0 );\n}",background_frag:"uniform sampler2D t2D;\nuniform float backgroundIntensity;\nvarying vec2 vUv;\nvoid main() {\n\tvec4 texColor = texture2D( t2D, vUv );\n\t#ifdef DECODE_VIDEO_TEXTURE\n\t\ttexColor = vec4( mix( pow( texColor.rgb * 0.9478672986 + vec3( 0.0521327014 ), vec3( 2.4 ) ), texColor.rgb * 0.0773993808, vec3( lessThanEqual( texColor.rgb, vec3( 0.04045 ) ) ) ), texColor.w );\n\t#endif\n\ttexColor.rgb *= backgroundIntensity;\n\tgl_FragColor = texColor;\n\t#include \n\t#include \n}",backgroundCube_vert:"varying vec3 vWorldDirection;\n#include \nvoid main() {\n\tvWorldDirection = transformDirection( position, modelMatrix );\n\t#include \n\t#include \n\tgl_Position.z = gl_Position.w;\n}",backgroundCube_frag:"#ifdef ENVMAP_TYPE_CUBE\n\tuniform samplerCube envMap;\n#elif defined( ENVMAP_TYPE_CUBE_UV )\n\tuniform sampler2D envMap;\n#endif\nuniform float flipEnvMap;\nuniform float backgroundBlurriness;\nuniform float backgroundIntensity;\nvarying vec3 vWorldDirection;\n#include \nvoid main() {\n\t#ifdef ENVMAP_TYPE_CUBE\n\t\tvec4 texColor = textureCube( envMap, vec3( flipEnvMap * vWorldDirection.x, vWorldDirection.yz ) );\n\t#elif defined( ENVMAP_TYPE_CUBE_UV )\n\t\tvec4 texColor = textureCubeUV( envMap, vWorldDirection, backgroundBlurriness );\n\t#else\n\t\tvec4 texColor = vec4( 0.0, 0.0, 0.0, 1.0 );\n\t#endif\n\ttexColor.rgb *= backgroundIntensity;\n\tgl_FragColor = texColor;\n\t#include \n\t#include \n}",cube_vert:"varying vec3 vWorldDirection;\n#include \nvoid main() {\n\tvWorldDirection = transformDirection( position, modelMatrix );\n\t#include \n\t#include \n\tgl_Position.z = gl_Position.w;\n}",cube_frag:"uniform samplerCube tCube;\nuniform float tFlip;\nuniform float opacity;\nvarying vec3 vWorldDirection;\nvoid main() {\n\tvec4 texColor = textureCube( tCube, vec3( tFlip * vWorldDirection.x, vWorldDirection.yz ) );\n\tgl_FragColor = texColor;\n\tgl_FragColor.a *= opacity;\n\t#include \n\t#include \n}",depth_vert:"#include \n#include \n#include \n#include \n#include \n#include \n#include \nvarying vec2 vHighPrecisionZW;\nvoid main() {\n\t#include \n\t#include \n\t#ifdef USE_DISPLACEMENTMAP\n\t\t#include \n\t\t#include \n\t\t#include \n\t#endif\n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\tvHighPrecisionZW = gl_Position.zw;\n}",depth_frag:"#if DEPTH_PACKING == 3200\n\tuniform float opacity;\n#endif\n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \nvarying vec2 vHighPrecisionZW;\nvoid main() {\n\t#include \n\tvec4 diffuseColor = vec4( 1.0 );\n\t#if DEPTH_PACKING == 3200\n\t\tdiffuseColor.a = opacity;\n\t#endif\n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\tfloat fragCoordZ = 0.5 * vHighPrecisionZW[0] / vHighPrecisionZW[1] + 0.5;\n\t#if DEPTH_PACKING == 3200\n\t\tgl_FragColor = vec4( vec3( 1.0 - fragCoordZ ), opacity );\n\t#elif DEPTH_PACKING == 3201\n\t\tgl_FragColor = packDepthToRGBA( fragCoordZ );\n\t#endif\n}",distanceRGBA_vert:"#define DISTANCE\nvarying vec3 vWorldPosition;\n#include \n#include \n#include \n#include \n#include \n#include \nvoid main() {\n\t#include \n\t#include \n\t#ifdef USE_DISPLACEMENTMAP\n\t\t#include \n\t\t#include \n\t\t#include \n\t#endif\n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\tvWorldPosition = worldPosition.xyz;\n}",distanceRGBA_frag:"#define DISTANCE\nuniform vec3 referencePosition;\nuniform float nearDistance;\nuniform float farDistance;\nvarying vec3 vWorldPosition;\n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \nvoid main () {\n\t#include \n\tvec4 diffuseColor = vec4( 1.0 );\n\t#include \n\t#include \n\t#include \n\t#include \n\tfloat dist = length( vWorldPosition - referencePosition );\n\tdist = ( dist - nearDistance ) / ( farDistance - nearDistance );\n\tdist = saturate( dist );\n\tgl_FragColor = packDepthToRGBA( dist );\n}",equirect_vert:"varying vec3 vWorldDirection;\n#include \nvoid main() {\n\tvWorldDirection = transformDirection( position, modelMatrix );\n\t#include \n\t#include \n}",equirect_frag:"uniform sampler2D tEquirect;\nvarying vec3 vWorldDirection;\n#include \nvoid main() {\n\tvec3 direction = normalize( vWorldDirection );\n\tvec2 sampleUV = equirectUv( direction );\n\tgl_FragColor = texture2D( tEquirect, sampleUV );\n\t#include \n\t#include \n}",linedashed_vert:"uniform float scale;\nattribute float lineDistance;\nvarying float vLineDistance;\n#include \n#include \n#include \n#include \n#include \n#include \n#include \nvoid main() {\n\tvLineDistance = scale * lineDistance;\n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n}",linedashed_frag:"uniform vec3 diffuse;\nuniform float opacity;\nuniform float dashSize;\nuniform float totalSize;\nvarying float vLineDistance;\n#include \n#include \n#include \n#include \n#include \n#include \n#include \nvoid main() {\n\t#include \n\tif ( mod( vLineDistance, totalSize ) > dashSize ) {\n\t\tdiscard;\n\t}\n\tvec3 outgoingLight = vec3( 0.0 );\n\tvec4 diffuseColor = vec4( diffuse, opacity );\n\t#include \n\t#include \n\t#include \n\toutgoingLight = diffuseColor.rgb;\n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n}",meshbasic_vert:"#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \nvoid main() {\n\t#include \n\t#include \n\t#include \n\t#if defined ( USE_ENVMAP ) || defined ( USE_SKINNING )\n\t\t#include \n\t\t#include \n\t\t#include \n\t\t#include \n\t\t#include \n\t#endif\n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n}",meshbasic_frag:"uniform vec3 diffuse;\nuniform float opacity;\n#ifndef FLAT_SHADED\n\tvarying vec3 vNormal;\n#endif\n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \nvoid main() {\n\t#include \n\tvec4 diffuseColor = vec4( diffuse, opacity );\n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\tReflectedLight reflectedLight = ReflectedLight( vec3( 0.0 ), vec3( 0.0 ), vec3( 0.0 ), vec3( 0.0 ) );\n\t#ifdef USE_LIGHTMAP\n\t\tvec4 lightMapTexel = texture2D( lightMap, vLightMapUv );\n\t\treflectedLight.indirectDiffuse += lightMapTexel.rgb * lightMapIntensity * RECIPROCAL_PI;\n\t#else\n\t\treflectedLight.indirectDiffuse += vec3( 1.0 );\n\t#endif\n\t#include \n\treflectedLight.indirectDiffuse *= diffuseColor.rgb;\n\tvec3 outgoingLight = reflectedLight.indirectDiffuse;\n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n}",meshlambert_vert:"#define LAMBERT\nvarying vec3 vViewPosition;\n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \nvoid main() {\n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\tvViewPosition = - mvPosition.xyz;\n\t#include \n\t#include \n\t#include \n\t#include \n}",meshlambert_frag:"#define LAMBERT\nuniform vec3 diffuse;\nuniform vec3 emissive;\nuniform float opacity;\n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \nvoid main() {\n\t#include \n\tvec4 diffuseColor = vec4( diffuse, opacity );\n\tReflectedLight reflectedLight = ReflectedLight( vec3( 0.0 ), vec3( 0.0 ), vec3( 0.0 ), vec3( 0.0 ) );\n\tvec3 totalEmissiveRadiance = emissive;\n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\tvec3 outgoingLight = reflectedLight.directDiffuse + reflectedLight.indirectDiffuse + totalEmissiveRadiance;\n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n}",meshmatcap_vert:"#define MATCAP\nvarying vec3 vViewPosition;\n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \nvoid main() {\n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\tvViewPosition = - mvPosition.xyz;\n}",meshmatcap_frag:"#define MATCAP\nuniform vec3 diffuse;\nuniform float opacity;\nuniform sampler2D matcap;\nvarying vec3 vViewPosition;\n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \nvoid main() {\n\t#include \n\tvec4 diffuseColor = vec4( diffuse, opacity );\n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\tvec3 viewDir = normalize( vViewPosition );\n\tvec3 x = normalize( vec3( viewDir.z, 0.0, - viewDir.x ) );\n\tvec3 y = cross( viewDir, x );\n\tvec2 uv = vec2( dot( x, normal ), dot( y, normal ) ) * 0.495 + 0.5;\n\t#ifdef USE_MATCAP\n\t\tvec4 matcapColor = texture2D( matcap, uv );\n\t#else\n\t\tvec4 matcapColor = vec4( vec3( mix( 0.2, 0.8, uv.y ) ), 1.0 );\n\t#endif\n\tvec3 outgoingLight = diffuseColor.rgb * matcapColor.rgb;\n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n}",meshnormal_vert:"#define NORMAL\n#if defined( FLAT_SHADED ) || defined( USE_BUMPMAP ) || defined( USE_NORMALMAP_TANGENTSPACE )\n\tvarying vec3 vViewPosition;\n#endif\n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \nvoid main() {\n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n#if defined( FLAT_SHADED ) || defined( USE_BUMPMAP ) || defined( USE_NORMALMAP_TANGENTSPACE )\n\tvViewPosition = - mvPosition.xyz;\n#endif\n}",meshnormal_frag:"#define NORMAL\nuniform float opacity;\n#if defined( FLAT_SHADED ) || defined( USE_BUMPMAP ) || defined( USE_NORMALMAP_TANGENTSPACE )\n\tvarying vec3 vViewPosition;\n#endif\n#include \n#include \n#include \n#include \n#include \n#include \n#include \nvoid main() {\n\t#include \n\t#include \n\t#include \n\t#include \n\tgl_FragColor = vec4( packNormalToRGB( normal ), opacity );\n\t#ifdef OPAQUE\n\t\tgl_FragColor.a = 1.0;\n\t#endif\n}",meshphong_vert:"#define PHONG\nvarying vec3 vViewPosition;\n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \nvoid main() {\n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\tvViewPosition = - mvPosition.xyz;\n\t#include \n\t#include \n\t#include \n\t#include \n}",meshphong_frag:"#define PHONG\nuniform vec3 diffuse;\nuniform vec3 emissive;\nuniform vec3 specular;\nuniform float shininess;\nuniform float opacity;\n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \nvoid main() {\n\t#include \n\tvec4 diffuseColor = vec4( diffuse, opacity );\n\tReflectedLight reflectedLight = ReflectedLight( vec3( 0.0 ), vec3( 0.0 ), vec3( 0.0 ), vec3( 0.0 ) );\n\tvec3 totalEmissiveRadiance = emissive;\n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\tvec3 outgoingLight = reflectedLight.directDiffuse + reflectedLight.indirectDiffuse + reflectedLight.directSpecular + reflectedLight.indirectSpecular + totalEmissiveRadiance;\n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n}",meshphysical_vert:"#define STANDARD\nvarying vec3 vViewPosition;\n#ifdef USE_TRANSMISSION\n\tvarying vec3 vWorldPosition;\n#endif\n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \nvoid main() {\n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\tvViewPosition = - mvPosition.xyz;\n\t#include \n\t#include \n\t#include \n#ifdef USE_TRANSMISSION\n\tvWorldPosition = worldPosition.xyz;\n#endif\n}",meshphysical_frag:"#define STANDARD\n#ifdef PHYSICAL\n\t#define IOR\n\t#define USE_SPECULAR\n#endif\nuniform vec3 diffuse;\nuniform vec3 emissive;\nuniform float roughness;\nuniform float metalness;\nuniform float opacity;\n#ifdef IOR\n\tuniform float ior;\n#endif\n#ifdef USE_SPECULAR\n\tuniform float specularIntensity;\n\tuniform vec3 specularColor;\n\t#ifdef USE_SPECULAR_COLORMAP\n\t\tuniform sampler2D specularColorMap;\n\t#endif\n\t#ifdef USE_SPECULAR_INTENSITYMAP\n\t\tuniform sampler2D specularIntensityMap;\n\t#endif\n#endif\n#ifdef USE_CLEARCOAT\n\tuniform float clearcoat;\n\tuniform float clearcoatRoughness;\n#endif\n#ifdef USE_IRIDESCENCE\n\tuniform float iridescence;\n\tuniform float iridescenceIOR;\n\tuniform float iridescenceThicknessMinimum;\n\tuniform float iridescenceThicknessMaximum;\n#endif\n#ifdef USE_SHEEN\n\tuniform vec3 sheenColor;\n\tuniform float sheenRoughness;\n\t#ifdef USE_SHEEN_COLORMAP\n\t\tuniform sampler2D sheenColorMap;\n\t#endif\n\t#ifdef USE_SHEEN_ROUGHNESSMAP\n\t\tuniform sampler2D sheenRoughnessMap;\n\t#endif\n#endif\n#ifdef USE_ANISOTROPY\n\tuniform vec2 anisotropyVector;\n\t#ifdef USE_ANISOTROPYMAP\n\t\tuniform sampler2D anisotropyMap;\n\t#endif\n#endif\nvarying vec3 vViewPosition;\n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \nvoid main() {\n\t#include \n\tvec4 diffuseColor = vec4( diffuse, opacity );\n\tReflectedLight reflectedLight = ReflectedLight( vec3( 0.0 ), vec3( 0.0 ), vec3( 0.0 ), vec3( 0.0 ) );\n\tvec3 totalEmissiveRadiance = emissive;\n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\tvec3 totalDiffuse = reflectedLight.directDiffuse + reflectedLight.indirectDiffuse;\n\tvec3 totalSpecular = reflectedLight.directSpecular + reflectedLight.indirectSpecular;\n\t#include \n\tvec3 outgoingLight = totalDiffuse + totalSpecular + totalEmissiveRadiance;\n\t#ifdef USE_SHEEN\n\t\tfloat sheenEnergyComp = 1.0 - 0.157 * max3( material.sheenColor );\n\t\toutgoingLight = outgoingLight * sheenEnergyComp + sheenSpecular;\n\t#endif\n\t#ifdef USE_CLEARCOAT\n\t\tfloat dotNVcc = saturate( dot( geometry.clearcoatNormal, geometry.viewDir ) );\n\t\tvec3 Fcc = F_Schlick( material.clearcoatF0, material.clearcoatF90, dotNVcc );\n\t\toutgoingLight = outgoingLight * ( 1.0 - material.clearcoat * Fcc ) + clearcoatSpecular * material.clearcoat;\n\t#endif\n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n}",meshtoon_vert:"#define TOON\nvarying vec3 vViewPosition;\n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \nvoid main() {\n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\tvViewPosition = - mvPosition.xyz;\n\t#include \n\t#include \n\t#include \n}",meshtoon_frag:"#define TOON\nuniform vec3 diffuse;\nuniform vec3 emissive;\nuniform float opacity;\n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \nvoid main() {\n\t#include \n\tvec4 diffuseColor = vec4( diffuse, opacity );\n\tReflectedLight reflectedLight = ReflectedLight( vec3( 0.0 ), vec3( 0.0 ), vec3( 0.0 ), vec3( 0.0 ) );\n\tvec3 totalEmissiveRadiance = emissive;\n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\tvec3 outgoingLight = reflectedLight.directDiffuse + reflectedLight.indirectDiffuse + totalEmissiveRadiance;\n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n}",points_vert:"uniform float size;\nuniform float scale;\n#include \n#include \n#include \n#include \n#include \n#include \n#ifdef USE_POINTS_UV\n\tvarying vec2 vUv;\n\tuniform mat3 uvTransform;\n#endif\nvoid main() {\n\t#ifdef USE_POINTS_UV\n\t\tvUv = ( uvTransform * vec3( uv, 1 ) ).xy;\n\t#endif\n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\tgl_PointSize = size;\n\t#ifdef USE_SIZEATTENUATION\n\t\tbool isPerspective = isPerspectiveMatrix( projectionMatrix );\n\t\tif ( isPerspective ) gl_PointSize *= ( scale / - mvPosition.z );\n\t#endif\n\t#include \n\t#include \n\t#include \n\t#include \n}",points_frag:"uniform vec3 diffuse;\nuniform float opacity;\n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \nvoid main() {\n\t#include \n\tvec3 outgoingLight = vec3( 0.0 );\n\tvec4 diffuseColor = vec4( diffuse, opacity );\n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\toutgoingLight = diffuseColor.rgb;\n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n}",shadow_vert:"#include \n#include \n#include \n#include \n#include \n#include \nvoid main() {\n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n}",shadow_frag:"uniform vec3 color;\nuniform float opacity;\n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \nvoid main() {\n\t#include \n\tgl_FragColor = vec4( color, opacity * ( 1.0 - getShadowMask() ) );\n\t#include \n\t#include \n\t#include \n}",sprite_vert:"uniform float rotation;\nuniform vec2 center;\n#include \n#include \n#include \n#include \n#include \nvoid main() {\n\t#include \n\tvec4 mvPosition = modelViewMatrix * vec4( 0.0, 0.0, 0.0, 1.0 );\n\tvec2 scale;\n\tscale.x = length( vec3( modelMatrix[ 0 ].x, modelMatrix[ 0 ].y, modelMatrix[ 0 ].z ) );\n\tscale.y = length( vec3( modelMatrix[ 1 ].x, modelMatrix[ 1 ].y, modelMatrix[ 1 ].z ) );\n\t#ifndef USE_SIZEATTENUATION\n\t\tbool isPerspective = isPerspectiveMatrix( projectionMatrix );\n\t\tif ( isPerspective ) scale *= - mvPosition.z;\n\t#endif\n\tvec2 alignedPosition = ( position.xy - ( center - vec2( 0.5 ) ) ) * scale;\n\tvec2 rotatedPosition;\n\trotatedPosition.x = cos( rotation ) * alignedPosition.x - sin( rotation ) * alignedPosition.y;\n\trotatedPosition.y = sin( rotation ) * alignedPosition.x + cos( rotation ) * alignedPosition.y;\n\tmvPosition.xy += rotatedPosition;\n\tgl_Position = projectionMatrix * mvPosition;\n\t#include \n\t#include \n\t#include \n}",sprite_frag:"uniform vec3 diffuse;\nuniform float opacity;\n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \nvoid main() {\n\t#include \n\tvec3 outgoingLight = vec3( 0.0 );\n\tvec4 diffuseColor = vec4( diffuse, opacity );\n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\toutgoingLight = diffuseColor.rgb;\n\t#include \n\t#include \n\t#include \n\t#include \n}"},Ri={common:{diffuse:{value:new Sn(16777215)},opacity:{value:1},map:{value:null},mapTransform:{value:new Ce},alphaMap:{value:null},alphaMapTransform:{value:new Ce},alphaTest:{value:0}},specularmap:{specularMap:{value:null},specularMapTransform:{value:new Ce}},envmap:{envMap:{value:null},flipEnvMap:{value:-1},reflectivity:{value:1},ior:{value:1.5},refractionRatio:{value:.98}},aomap:{aoMap:{value:null},aoMapIntensity:{value:1},aoMapTransform:{value:new Ce}},lightmap:{lightMap:{value:null},lightMapIntensity:{value:1},lightMapTransform:{value:new Ce}},bumpmap:{bumpMap:{value:null},bumpMapTransform:{value:new Ce},bumpScale:{value:1}},normalmap:{normalMap:{value:null},normalMapTransform:{value:new Ce},normalScale:{value:new Re(1,1)}},displacementmap:{displacementMap:{value:null},displacementMapTransform:{value:new Ce},displacementScale:{value:1},displacementBias:{value:0}},emissivemap:{emissiveMap:{value:null},emissiveMapTransform:{value:new Ce}},metalnessmap:{metalnessMap:{value:null},metalnessMapTransform:{value:new Ce}},roughnessmap:{roughnessMap:{value:null},roughnessMapTransform:{value:new Ce}},gradientmap:{gradientMap:{value:null}},fog:{fogDensity:{value:25e-5},fogNear:{value:1},fogFar:{value:2e3},fogColor:{value:new Sn(16777215)}},lights:{ambientLightColor:{value:[]},lightProbe:{value:[]},directionalLights:{value:[],properties:{direction:{},color:{}}},directionalLightShadows:{value:[],properties:{shadowBias:{},shadowNormalBias:{},shadowRadius:{},shadowMapSize:{}}},directionalShadowMap:{value:[]},directionalShadowMatrix:{value:[]},spotLights:{value:[],properties:{color:{},position:{},direction:{},distance:{},coneCos:{},penumbraCos:{},decay:{}}},spotLightShadows:{value:[],properties:{shadowBias:{},shadowNormalBias:{},shadowRadius:{},shadowMapSize:{}}},spotLightMap:{value:[]},spotShadowMap:{value:[]},spotLightMatrix:{value:[]},pointLights:{value:[],properties:{color:{},position:{},decay:{},distance:{}}},pointLightShadows:{value:[],properties:{shadowBias:{},shadowNormalBias:{},shadowRadius:{},shadowMapSize:{},shadowCameraNear:{},shadowCameraFar:{}}},pointShadowMap:{value:[]},pointShadowMatrix:{value:[]},hemisphereLights:{value:[],properties:{direction:{},skyColor:{},groundColor:{}}},rectAreaLights:{value:[],properties:{color:{},position:{},width:{},height:{}}},ltc_1:{value:null},ltc_2:{value:null}},points:{diffuse:{value:new Sn(16777215)},opacity:{value:1},size:{value:1},scale:{value:1},map:{value:null},alphaMap:{value:null},alphaMapTransform:{value:new Ce},alphaTest:{value:0},uvTransform:{value:new Ce}},sprite:{diffuse:{value:new Sn(16777215)},opacity:{value:1},center:{value:new Re(.5,.5)},rotation:{value:0},map:{value:null},mapTransform:{value:new Ce},alphaMap:{value:null},alphaMapTransform:{value:new Ce},alphaTest:{value:0}}},Ci={basic:{uniforms:oi([Ri.common,Ri.specularmap,Ri.envmap,Ri.aomap,Ri.lightmap,Ri.fog]),vertexShader:wi.meshbasic_vert,fragmentShader:wi.meshbasic_frag},lambert:{uniforms:oi([Ri.common,Ri.specularmap,Ri.envmap,Ri.aomap,Ri.lightmap,Ri.emissivemap,Ri.bumpmap,Ri.normalmap,Ri.displacementmap,Ri.fog,Ri.lights,{emissive:{value:new Sn(0)}}]),vertexShader:wi.meshlambert_vert,fragmentShader:wi.meshlambert_frag},phong:{uniforms:oi([Ri.common,Ri.specularmap,Ri.envmap,Ri.aomap,Ri.lightmap,Ri.emissivemap,Ri.bumpmap,Ri.normalmap,Ri.displacementmap,Ri.fog,Ri.lights,{emissive:{value:new Sn(0)},specular:{value:new Sn(1118481)},shininess:{value:30}}]),vertexShader:wi.meshphong_vert,fragmentShader:wi.meshphong_frag},standard:{uniforms:oi([Ri.common,Ri.envmap,Ri.aomap,Ri.lightmap,Ri.emissivemap,Ri.bumpmap,Ri.normalmap,Ri.displacementmap,Ri.roughnessmap,Ri.metalnessmap,Ri.fog,Ri.lights,{emissive:{value:new Sn(0)},roughness:{value:1},metalness:{value:0},envMapIntensity:{value:1}}]),vertexShader:wi.meshphysical_vert,fragmentShader:wi.meshphysical_frag},toon:{uniforms:oi([Ri.common,Ri.aomap,Ri.lightmap,Ri.emissivemap,Ri.bumpmap,Ri.normalmap,Ri.displacementmap,Ri.gradientmap,Ri.fog,Ri.lights,{emissive:{value:new Sn(0)}}]),vertexShader:wi.meshtoon_vert,fragmentShader:wi.meshtoon_frag},matcap:{uniforms:oi([Ri.common,Ri.bumpmap,Ri.normalmap,Ri.displacementmap,Ri.fog,{matcap:{value:null}}]),vertexShader:wi.meshmatcap_vert,fragmentShader:wi.meshmatcap_frag},points:{uniforms:oi([Ri.points,Ri.fog]),vertexShader:wi.points_vert,fragmentShader:wi.points_frag},dashed:{uniforms:oi([Ri.common,Ri.fog,{scale:{value:1},dashSize:{value:1},totalSize:{value:2}}]),vertexShader:wi.linedashed_vert,fragmentShader:wi.linedashed_frag},depth:{uniforms:oi([Ri.common,Ri.displacementmap]),vertexShader:wi.depth_vert,fragmentShader:wi.depth_frag},normal:{uniforms:oi([Ri.common,Ri.bumpmap,Ri.normalmap,Ri.displacementmap,{opacity:{value:1}}]),vertexShader:wi.meshnormal_vert,fragmentShader:wi.meshnormal_frag},sprite:{uniforms:oi([Ri.sprite,Ri.fog]),vertexShader:wi.sprite_vert,fragmentShader:wi.sprite_frag},background:{uniforms:{uvTransform:{value:new Ce},t2D:{value:null},backgroundIntensity:{value:1}},vertexShader:wi.background_vert,fragmentShader:wi.background_frag},backgroundCube:{uniforms:{envMap:{value:null},flipEnvMap:{value:-1},backgroundBlurriness:{value:0},backgroundIntensity:{value:1}},vertexShader:wi.backgroundCube_vert,fragmentShader:wi.backgroundCube_frag},cube:{uniforms:{tCube:{value:null},tFlip:{value:-1},opacity:{value:1}},vertexShader:wi.cube_vert,fragmentShader:wi.cube_frag},equirect:{uniforms:{tEquirect:{value:null}},vertexShader:wi.equirect_vert,fragmentShader:wi.equirect_frag},distanceRGBA:{uniforms:oi([Ri.common,Ri.displacementmap,{referencePosition:{value:new nt},nearDistance:{value:1},farDistance:{value:1e3}}]),vertexShader:wi.distanceRGBA_vert,fragmentShader:wi.distanceRGBA_frag},shadow:{uniforms:oi([Ri.lights,Ri.fog,{color:{value:new Sn(0)},opacity:{value:1}}]),vertexShader:wi.shadow_vert,fragmentShader:wi.shadow_frag}};Ci.physical={uniforms:oi([Ci.standard.uniforms,{clearcoat:{value:0},clearcoatMap:{value:null},clearcoatMapTransform:{value:new Ce},clearcoatNormalMap:{value:null},clearcoatNormalMapTransform:{value:new Ce},clearcoatNormalScale:{value:new Re(1,1)},clearcoatRoughness:{value:0},clearcoatRoughnessMap:{value:null},clearcoatRoughnessMapTransform:{value:new Ce},iridescence:{value:0},iridescenceMap:{value:null},iridescenceMapTransform:{value:new Ce},iridescenceIOR:{value:1.3},iridescenceThicknessMinimum:{value:100},iridescenceThicknessMaximum:{value:400},iridescenceThicknessMap:{value:null},iridescenceThicknessMapTransform:{value:new Ce},sheen:{value:0},sheenColor:{value:new Sn(0)},sheenColorMap:{value:null},sheenColorMapTransform:{value:new Ce},sheenRoughness:{value:1},sheenRoughnessMap:{value:null},sheenRoughnessMapTransform:{value:new Ce},transmission:{value:0},transmissionMap:{value:null},transmissionMapTransform:{value:new Ce},transmissionSamplerSize:{value:new Re},transmissionSamplerMap:{value:null},thickness:{value:0},thicknessMap:{value:null},thicknessMapTransform:{value:new Ce},attenuationDistance:{value:0},attenuationColor:{value:new Sn(0)},specularColor:{value:new Sn(1,1,1)},specularColorMap:{value:null},specularColorMapTransform:{value:new Ce},specularIntensity:{value:1},specularIntensityMap:{value:null},specularIntensityMapTransform:{value:new Ce},anisotropyVector:{value:new Re},anisotropyMap:{value:null},anisotropyMapTransform:{value:new Ce}}]),vertexShader:wi.meshphysical_vert,fragmentShader:wi.meshphysical_frag};const Li={r:0,b:0,g:0};function Pi(e,t,n,i,r,a,s){const o=new Sn(0);let l,h,d=!0===a?0:1,p=null,f=0,m=null;function g(t,n){t.getRGB(Li,li(e)),i.buffers.color.setClear(Li.r,Li.g,Li.b,n,s)}return{getClearColor:function(){return o},setClearColor:function(e,t=1){o.set(e),d=t,g(o,d)},getClearAlpha:function(){return d},setClearAlpha:function(e){d=e,g(o,d)},render:function(a,_){let v=!1,x=!0===_.isScene?_.background:null;if(x&&x.isTexture){x=(_.backgroundBlurriness>0?n:t).get(x)}null===x?g(o,d):x&&x.isColor&&(g(x,1),v=!0);const M=e.xr.getEnvironmentBlendMode();"additive"===M?i.buffers.color.setClear(0,0,0,1,s):"alpha-blend"===M&&i.buffers.color.setClear(0,0,0,0,s),(e.autoClear||v)&&e.clear(e.autoClearColor,e.autoClearDepth,e.autoClearStencil),x&&(x.isCubeTexture||x.mapping===A)?(void 0===h&&(h=new ii(new ai(1,1,1),new ui({name:"BackgroundCubeMaterial",uniforms:si(Ci.backgroundCube.uniforms),vertexShader:Ci.backgroundCube.vertexShader,fragmentShader:Ci.backgroundCube.fragmentShader,side:u,depthTest:!1,depthWrite:!1,fog:!1})),h.geometry.deleteAttribute("normal"),h.geometry.deleteAttribute("uv"),h.onBeforeRender=function(e,t,n){this.matrixWorld.copyPosition(n.matrixWorld)},Object.defineProperty(h.material,"envMap",{get:function(){return this.uniforms.envMap.value}}),r.update(h)),h.material.uniforms.envMap.value=x,h.material.uniforms.flipEnvMap.value=x.isCubeTexture&&!1===x.isRenderTargetTexture?-1:1,h.material.uniforms.backgroundBlurriness.value=_.backgroundBlurriness,h.material.uniforms.backgroundIntensity.value=_.backgroundIntensity,h.material.toneMapped=x.colorSpace!==re,p===x&&f===x.version&&m===e.toneMapping||(h.material.needsUpdate=!0,p=x,f=x.version,m=e.toneMapping),h.layers.enableAll(),a.unshift(h,h.geometry,h.material,0,0,null)):x&&x.isTexture&&(void 0===l&&(l=new ii(new Ai(2,2),new ui({name:"BackgroundMaterial",uniforms:si(Ci.background.uniforms),vertexShader:Ci.background.vertexShader,fragmentShader:Ci.background.fragmentShader,side:c,depthTest:!1,depthWrite:!1,fog:!1})),l.geometry.deleteAttribute("normal"),Object.defineProperty(l.material,"map",{get:function(){return this.uniforms.t2D.value}}),r.update(l)),l.material.uniforms.t2D.value=x,l.material.uniforms.backgroundIntensity.value=_.backgroundIntensity,l.material.toneMapped=x.colorSpace!==re,!0===x.matrixAutoUpdate&&x.updateMatrix(),l.material.uniforms.uvTransform.value.copy(x.matrix),p===x&&f===x.version&&m===e.toneMapping||(l.material.needsUpdate=!0,p=x,f=x.version,m=e.toneMapping),l.layers.enableAll(),a.unshift(l,l.geometry,l.material,0,0,null))}}}function Ui(e,t,n,i){const r=e.getParameter(e.MAX_VERTEX_ATTRIBS),a=i.isWebGL2?null:t.get("OES_vertex_array_object"),s=i.isWebGL2||null!==a,o={},l=p(null);let c=l,u=!1;function h(t){return i.isWebGL2?e.bindVertexArray(t):a.bindVertexArrayOES(t)}function d(t){return i.isWebGL2?e.deleteVertexArray(t):a.deleteVertexArrayOES(t)}function p(e){const t=[],n=[],i=[];for(let a=0;a=0){const t=r[l];let n=a[l];if(void 0===n&&("instanceMatrix"===l&&e.instanceMatrix&&(n=e.instanceMatrix),"instanceColor"===l&&e.instanceColor&&(n=e.instanceColor)),void 0===t)return!0;if(t.attribute!==n)return!0;if(n&&t.data!==n.data)return!0;s++}}return c.attributesNum!==s||c.index!==i}(r,x,d,M),y&&function(e,t,n,i){const r={},a=t.attributes;let s=0;const o=n.getAttributes();for(const l in o){if(o[l].location>=0){let t=a[l];void 0===t&&("instanceMatrix"===l&&e.instanceMatrix&&(t=e.instanceMatrix),"instanceColor"===l&&e.instanceColor&&(t=e.instanceColor));const n={};n.attribute=t,t&&t.data&&(n.data=t.data),r[l]=n,s++}}c.attributes=r,c.attributesNum=s,c.index=i}(r,x,d,M)}else{const e=!0===l.wireframe;c.geometry===x.id&&c.program===d.id&&c.wireframe===e||(c.geometry=x.id,c.program=d.id,c.wireframe=e,y=!0)}null!==M&&n.update(M,e.ELEMENT_ARRAY_BUFFER),(y||u)&&(u=!1,function(r,a,s,o){if(!1===i.isWebGL2&&(r.isInstancedMesh||o.isInstancedBufferGeometry)&&null===t.get("ANGLE_instanced_arrays"))return;f();const l=o.attributes,c=s.getAttributes(),u=a.defaultAttributeValues;for(const t in c){const a=c[t];if(a.location>=0){let s=l[t];if(void 0===s&&("instanceMatrix"===t&&r.instanceMatrix&&(s=r.instanceMatrix),"instanceColor"===t&&r.instanceColor&&(s=r.instanceColor)),void 0!==s){const t=s.normalized,l=s.itemSize,c=n.get(s);if(void 0===c)continue;const u=c.buffer,h=c.type,d=c.bytesPerElement,p=!0===i.isWebGL2&&(h===e.INT||h===e.UNSIGNED_INT||s.gpuType===F);if(s.isInterleavedBufferAttribute){const n=s.data,i=n.stride,c=s.offset;if(n.isInstancedInterleavedBuffer){for(let e=0;e0&&e.getShaderPrecisionFormat(e.FRAGMENT_SHADER,e.HIGH_FLOAT).precision>0)return"highp";t="mediump"}return"mediump"===t&&e.getShaderPrecisionFormat(e.VERTEX_SHADER,e.MEDIUM_FLOAT).precision>0&&e.getShaderPrecisionFormat(e.FRAGMENT_SHADER,e.MEDIUM_FLOAT).precision>0?"mediump":"lowp"}const a="undefined"!=typeof WebGL2RenderingContext&&"WebGL2RenderingContext"===e.constructor.name;let s=void 0!==n.precision?n.precision:"highp";const o=r(s);o!==s&&(console.warn("THREE.WebGLRenderer:",s,"not supported, using",o,"instead."),s=o);const l=a||t.has("WEBGL_draw_buffers"),c=!0===n.logarithmicDepthBuffer,u=e.getParameter(e.MAX_TEXTURE_IMAGE_UNITS),h=e.getParameter(e.MAX_VERTEX_TEXTURE_IMAGE_UNITS),d=e.getParameter(e.MAX_TEXTURE_SIZE),p=e.getParameter(e.MAX_CUBE_MAP_TEXTURE_SIZE),f=e.getParameter(e.MAX_VERTEX_ATTRIBS),m=e.getParameter(e.MAX_VERTEX_UNIFORM_VECTORS),g=e.getParameter(e.MAX_VARYING_VECTORS),_=e.getParameter(e.MAX_FRAGMENT_UNIFORM_VECTORS),v=h>0,x=a||t.has("OES_texture_float");return{isWebGL2:a,drawBuffers:l,getMaxAnisotropy:function(){if(void 0!==i)return i;if(!0===t.has("EXT_texture_filter_anisotropic")){const n=t.get("EXT_texture_filter_anisotropic");i=e.getParameter(n.MAX_TEXTURE_MAX_ANISOTROPY_EXT)}else i=0;return i},getMaxPrecision:r,precision:s,logarithmicDepthBuffer:c,maxTextures:u,maxVertexTextures:h,maxTextureSize:d,maxCubemapSize:p,maxAttributes:f,maxVertexUniforms:m,maxVaryings:g,maxFragmentUniforms:_,vertexTextures:v,floatFragmentTextures:x,floatVertexTextures:v&&x,maxSamples:a?e.getParameter(e.MAX_SAMPLES):0}}function Ni(e){const t=this;let n=null,i=0,r=!1,a=!1;const s=new Mi,o=new Ce,l={value:null,needsUpdate:!1};function c(e,n,i,r){const a=null!==e?e.length:0;let c=null;if(0!==a){if(c=l.value,!0!==r||null===c){const t=i+4*a,r=n.matrixWorldInverse;o.getNormalMatrix(r),(null===c||c.length0);t.numPlanes=i,t.numIntersection=0}();else{const e=a?0:i,t=4*e;let r=f.clippingState||null;l.value=r,r=c(h,o,t,u);for(let i=0;i!==t;++i)r[i]=n[i];f.clippingState=r,this.numIntersection=d?this.numPlanes:0,this.numPlanes+=e}}}function Oi(e){let t=new WeakMap;function n(e,t){return t===T?e.mapping=E:t===b&&(e.mapping=S),e}function i(e){const n=e.target;n.removeEventListener("dispose",i);const r=t.get(n);void 0!==r&&(t.delete(n),r.dispose())}return{get:function(r){if(r&&r.isTexture&&!1===r.isRenderTargetTexture){const a=r.mapping;if(a===T||a===b){if(t.has(r)){return n(t.get(r).texture,r.mapping)}{const a=r.image;if(a&&a.height>0){const s=new gi(a.height/2);return s.fromEquirectangularTexture(e,r),t.set(r,s),r.addEventListener("dispose",i),n(s.texture,r.mapping)}return null}}}return r},dispose:function(){t=new WeakMap}}}class Fi extends hi{constructor(e=-1,t=1,n=1,i=-1,r=.1,a=2e3){super(),this.isOrthographicCamera=!0,this.type="OrthographicCamera",this.zoom=1,this.view=null,this.left=e,this.right=t,this.top=n,this.bottom=i,this.near=r,this.far=a,this.updateProjectionMatrix()}copy(e,t){return super.copy(e,t),this.left=e.left,this.right=e.right,this.top=e.top,this.bottom=e.bottom,this.near=e.near,this.far=e.far,this.zoom=e.zoom,this.view=null===e.view?null:Object.assign({},e.view),this}setViewOffset(e,t,n,i,r,a){null===this.view&&(this.view={enabled:!0,fullWidth:1,fullHeight:1,offsetX:0,offsetY:0,width:1,height:1}),this.view.enabled=!0,this.view.fullWidth=e,this.view.fullHeight=t,this.view.offsetX=n,this.view.offsetY=i,this.view.width=r,this.view.height=a,this.updateProjectionMatrix()}clearViewOffset(){null!==this.view&&(this.view.enabled=!1),this.updateProjectionMatrix()}updateProjectionMatrix(){const e=(this.right-this.left)/(2*this.zoom),t=(this.top-this.bottom)/(2*this.zoom),n=(this.right+this.left)/2,i=(this.top+this.bottom)/2;let r=n-e,a=n+e,s=i+t,o=i-t;if(null!==this.view&&this.view.enabled){const e=(this.right-this.left)/this.view.fullWidth/this.zoom,t=(this.top-this.bottom)/this.view.fullHeight/this.zoom;r+=e*this.view.offsetX,a=r+e*this.view.width,s-=t*this.view.offsetY,o=s-t*this.view.height}this.projectionMatrix.makeOrthographic(r,a,s,o,this.near,this.far,this.coordinateSystem),this.projectionMatrixInverse.copy(this.projectionMatrix).invert()}toJSON(e){const t=super.toJSON(e);return t.object.zoom=this.zoom,t.object.left=this.left,t.object.right=this.right,t.object.top=this.top,t.object.bottom=this.bottom,t.object.near=this.near,t.object.far=this.far,null!==this.view&&(t.object.view=Object.assign({},this.view)),t}}const Bi=[.125,.215,.35,.446,.526,.582],zi=20,Hi=new Fi,Vi=new Sn;let Gi=null;const ki=(1+Math.sqrt(5))/2,Wi=1/ki,Xi=[new nt(1,1,1),new nt(-1,1,1),new nt(1,1,-1),new nt(-1,1,-1),new nt(0,ki,Wi),new nt(0,ki,-Wi),new nt(Wi,0,ki),new nt(-Wi,0,ki),new nt(ki,Wi,0),new nt(-ki,Wi,0)];class ji{constructor(e){this._renderer=e,this._pingPongRenderTarget=null,this._lodMax=0,this._cubeSize=0,this._lodPlanes=[],this._sizeLods=[],this._sigmas=[],this._blurMaterial=null,this._cubemapMaterial=null,this._equirectMaterial=null,this._compileMaterial(this._blurMaterial)}fromScene(e,t=0,n=.1,i=100){Gi=this._renderer.getRenderTarget(),this._setSize(256);const r=this._allocateTargets();return r.depthBuffer=!0,this._sceneToCubeUV(e,n,i,r),t>0&&this._blur(r,0,0,t),this._applyPMREM(r),this._cleanup(r),r}fromEquirectangular(e,t=null){return this._fromTexture(e,t)}fromCubemap(e,t=null){return this._fromTexture(e,t)}compileCubemapShader(){null===this._cubemapMaterial&&(this._cubemapMaterial=Zi(),this._compileMaterial(this._cubemapMaterial))}compileEquirectangularShader(){null===this._equirectMaterial&&(this._equirectMaterial=Ki(),this._compileMaterial(this._equirectMaterial))}dispose(){this._dispose(),null!==this._cubemapMaterial&&this._cubemapMaterial.dispose(),null!==this._equirectMaterial&&this._equirectMaterial.dispose()}_setSize(e){this._lodMax=Math.floor(Math.log2(e)),this._cubeSize=Math.pow(2,this._lodMax)}_dispose(){null!==this._blurMaterial&&this._blurMaterial.dispose(),null!==this._pingPongRenderTarget&&this._pingPongRenderTarget.dispose();for(let e=0;ee-4?o=Bi[s-e+4-1]:0===s&&(o=0),i.push(o);const l=1/(a-2),c=-l,u=1+l,h=[c,c,u,c,u,u,c,c,u,u,c,u],d=6,p=6,f=3,m=2,g=1,_=new Float32Array(f*p*d),v=new Float32Array(m*p*d),x=new Float32Array(g*p*d);for(let e=0;e2?0:-1,i=[t,n,0,t+2/3,n,0,t+2/3,n+1,0,t,n,0,t+2/3,n+1,0,t,n+1,0];_.set(i,f*p*e),v.set(h,m*p*e);const r=[e,e,e,e,e,e];x.set(r,g*p*e)}const M=new zn;M.setAttribute("position",new Rn(_,f)),M.setAttribute("uv",new Rn(v,m)),M.setAttribute("faceIndex",new Rn(x,g)),t.push(M),r>4&&r--}return{lodPlanes:t,sizeLods:n,sigmas:i}}(i)),this._blurMaterial=function(e,t,n){const i=new Float32Array(zi),r=new nt(0,1,0),a=new ui({name:"SphericalGaussianBlur",defines:{n:zi,CUBEUV_TEXEL_WIDTH:1/t,CUBEUV_TEXEL_HEIGHT:1/n,CUBEUV_MAX_MIP:`${e}.0`},uniforms:{envMap:{value:null},samples:{value:1},weights:{value:i},latitudinal:{value:!1},dTheta:{value:0},mipInt:{value:0},poleAxis:{value:r}},vertexShader:Ji(),fragmentShader:"\n\n\t\t\tprecision mediump float;\n\t\t\tprecision mediump int;\n\n\t\t\tvarying vec3 vOutputDirection;\n\n\t\t\tuniform sampler2D envMap;\n\t\t\tuniform int samples;\n\t\t\tuniform float weights[ n ];\n\t\t\tuniform bool latitudinal;\n\t\t\tuniform float dTheta;\n\t\t\tuniform float mipInt;\n\t\t\tuniform vec3 poleAxis;\n\n\t\t\t#define ENVMAP_TYPE_CUBE_UV\n\t\t\t#include \n\n\t\t\tvec3 getSample( float theta, vec3 axis ) {\n\n\t\t\t\tfloat cosTheta = cos( theta );\n\t\t\t\t// Rodrigues' axis-angle rotation\n\t\t\t\tvec3 sampleDirection = vOutputDirection * cosTheta\n\t\t\t\t\t+ cross( axis, vOutputDirection ) * sin( theta )\n\t\t\t\t\t+ axis * dot( axis, vOutputDirection ) * ( 1.0 - cosTheta );\n\n\t\t\t\treturn bilinearCubeUV( envMap, sampleDirection, mipInt );\n\n\t\t\t}\n\n\t\t\tvoid main() {\n\n\t\t\t\tvec3 axis = latitudinal ? poleAxis : cross( poleAxis, vOutputDirection );\n\n\t\t\t\tif ( all( equal( axis, vec3( 0.0 ) ) ) ) {\n\n\t\t\t\t\taxis = vec3( vOutputDirection.z, 0.0, - vOutputDirection.x );\n\n\t\t\t\t}\n\n\t\t\t\taxis = normalize( axis );\n\n\t\t\t\tgl_FragColor = vec4( 0.0, 0.0, 0.0, 1.0 );\n\t\t\t\tgl_FragColor.rgb += weights[ 0 ] * getSample( 0.0, axis );\n\n\t\t\t\tfor ( int i = 1; i < n; i++ ) {\n\n\t\t\t\t\tif ( i >= samples ) {\n\n\t\t\t\t\t\tbreak;\n\n\t\t\t\t\t}\n\n\t\t\t\t\tfloat theta = dTheta * float( i );\n\t\t\t\t\tgl_FragColor.rgb += weights[ i ] * getSample( -1.0 * theta, axis );\n\t\t\t\t\tgl_FragColor.rgb += weights[ i ] * getSample( theta, axis );\n\n\t\t\t\t}\n\n\t\t\t}\n\t\t",blending:0,depthTest:!1,depthWrite:!1});return a}(i,e,t)}return i}_compileMaterial(e){const t=new ii(this._lodPlanes[0],e);this._renderer.compile(t,Hi)}_sceneToCubeUV(e,t,n,i){const r=new di(90,1,t,n),a=[1,-1,1,1,1,1],s=[1,1,1,-1,-1,-1],o=this._renderer,l=o.autoClear,c=o.toneMapping;o.getClearColor(Vi),o.toneMapping=g,o.autoClear=!1;const h=new bn({name:"PMREM.Background",side:u,depthWrite:!1,depthTest:!1}),d=new ii(new ai,h);let p=!1;const f=e.background;f?f.isColor&&(h.color.copy(f),e.background=null,p=!0):(h.color.copy(Vi),p=!0);for(let u=0;u<6;u++){const t=u%3;0===t?(r.up.set(0,a[u],0),r.lookAt(s[u],0,0)):1===t?(r.up.set(0,0,a[u]),r.lookAt(0,s[u],0)):(r.up.set(0,a[u],0),r.lookAt(0,0,s[u]));const 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0!==E.morphAttributes.position,morphNormals:void 0!==E.morphAttributes.normal,morphColors:void 0!==E.morphAttributes.color,morphTargetsCount:C,morphTextureStride:I,numDirLights:o.directional.length,numPointLights:o.point.length,numSpotLights:o.spot.length,numSpotLightMaps:o.spotLightMap.length,numRectAreaLights:o.rectArea.length,numHemiLights:o.hemi.length,numDirLightShadows:o.directionalShadowMap.length,numPointLightShadows:o.pointShadowMap.length,numSpotLightShadows:o.spotShadowMap.length,numSpotLightShadowsWithMaps:o.numSpotLightShadowsWithMaps,numClippingPlanes:s.numPlanes,numClipIntersection:s.numIntersection,dithering:a.dithering,shadowMapEnabled:e.shadowMap.enabled&&c.length>0,shadowMapType:e.shadowMap.type,toneMapping:Ee,useLegacyLights:e._useLegacyLights,decodeVideoTexture:F&&!0===a.map.isVideoTexture&&a.map.colorSpace===re,premultipliedAlpha:a.premultipliedAlpha,doubleSided:a.side===h,flipSided:a.side===u,useDepthPacking:a.depthPacking>=0,depthPacking:a.depthPacking||0,index0AttributeName:a.index0AttributeName,extensionDerivatives:ve&&!0===a.extensions.derivatives,extensionFragDepth:ve&&!0===a.extensions.fragDepth,extensionDrawBuffers:ve&&!0===a.extensions.drawBuffers,extensionShaderTextureLOD:ve&&!0===a.extensions.shaderTextureLOD,rendererExtensionFragDepth:d||i.has("EXT_frag_depth"),rendererExtensionDrawBuffers:d||i.has("WEBGL_draw_buffers"),rendererExtensionShaderTextureLod:d||i.has("EXT_shader_texture_lod"),customProgramCacheKey:a.customProgramCacheKey()}},getProgramCacheKey:function(t){const n=[];if(t.shaderID?n.push(t.shaderID):(n.push(t.customVertexShaderID),n.push(t.customFragmentShaderID)),void 0!==t.defines)for(const e in t.defines)n.push(e),n.push(t.defines[e]);return!1===t.isRawShaderMaterial&&(!function(e,t){e.push(t.precision),e.push(t.outputColorSpace),e.push(t.envMapMode),e.push(t.envMapCubeUVHeight),e.push(t.mapUv),e.push(t.alphaMapUv),e.push(t.lightMapUv),e.push(t.aoMapUv),e.push(t.bumpMapUv),e.push(t.normalMapUv),e.push(t.displacementMapUv),e.push(t.emissiveMapUv),e.push(t.metalnessMapUv),e.push(t.roughnessMapUv),e.push(t.anisotropyMapUv),e.push(t.clearcoatMapUv),e.push(t.clearcoatNormalMapUv),e.push(t.clearcoatRoughnessMapUv),e.push(t.iridescenceMapUv),e.push(t.iridescenceThicknessMapUv),e.push(t.sheenColorMapUv),e.push(t.sheenRoughnessMapUv),e.push(t.specularMapUv),e.push(t.specularColorMapUv),e.push(t.specularIntensityMapUv),e.push(t.transmissionMapUv),e.push(t.thicknessMapUv),e.push(t.combine),e.push(t.fogExp2),e.push(t.sizeAttenuation),e.push(t.morphTargetsCount),e.push(t.morphAttributeCount),e.push(t.numDirLights),e.push(t.numPointLights),e.push(t.numSpotLights),e.push(t.numSpotLightMaps),e.push(t.numHemiLights),e.push(t.numRectAreaLights),e.push(t.numDirLightShadows),e.push(t.numPointLightShadows),e.push(t.numSpotLightShadows),e.push(t.numSpotLightShadowsWithMaps),e.push(t.shadowMapType),e.push(t.toneMapping),e.push(t.numClippingPlanes),e.push(t.numClipIntersection),e.push(t.depthPacking)}(n,t),function(e,t){o.disableAll(),t.isWebGL2&&o.enable(0);t.supportsVertexTextures&&o.enable(1);t.instancing&&o.enable(2);t.instancingColor&&o.enable(3);t.matcap&&o.enable(4);t.envMap&&o.enable(5);t.normalMapObjectSpace&&o.enable(6);t.normalMapTangentSpace&&o.enable(7);t.clearcoat&&o.enable(8);t.iridescence&&o.enable(9);t.alphaTest&&o.enable(10);t.vertexColors&&o.enable(11);t.vertexAlphas&&o.enable(12);t.vertexUv1s&&o.enable(13);t.vertexUv2s&&o.enable(14);t.vertexUv3s&&o.enable(15);t.vertexTangents&&o.enable(16);t.anisotropy&&o.enable(17);e.push(o.mask),o.disableAll(),t.fog&&o.enable(0);t.useFog&&o.enable(1);t.flatShading&&o.enable(2);t.logarithmicDepthBuffer&&o.enable(3);t.skinning&&o.enable(4);t.morphTargets&&o.enable(5);t.morphNormals&&o.enable(6);t.morphColors&&o.enable(7);t.premultipliedAlpha&&o.enable(8);t.shadowMapEnabled&&o.enable(9);t.useLegacyLights&&o.enable(10);t.doubleSided&&o.enable(11);t.flipSided&&o.enable(12);t.useDepthPacking&&o.enable(13);t.dithering&&o.enable(14);t.transmission&&o.enable(15);t.sheen&&o.enable(16);t.opaque&&o.enable(17);t.pointsUvs&&o.enable(18);t.decodeVideoTexture&&o.enable(19);e.push(o.mask)}(n,t),n.push(e.outputColorSpace)),n.push(t.customProgramCacheKey),n.join()},getUniforms:function(e){const t=_[e.type];let n;if(t){const e=Ci[t];n=ci.clone(e.uniforms)}else n=e.uniforms;return n},acquireProgram:function(t,n){let i;for(let e=0,r=c.length;e0?i.push(u):!0===s.transparent?r.push(u):n.push(u)},unshift:function(e,t,s,o,l,c){const u=a(e,t,s,o,l,c);s.transmission>0?i.unshift(u):!0===s.transparent?r.unshift(u):n.unshift(u)},finish:function(){for(let n=t,i=e.length;n1&&n.sort(e||Da),i.length>1&&i.sort(t||Ia),r.length>1&&r.sort(t||Ia)}}}function Oa(){let e=new WeakMap;return{get:function(t,n){const i=e.get(t);let r;return void 0===i?(r=new Na,e.set(t,[r])):n>=i.length?(r=new Na,i.push(r)):r=i[n],r},dispose:function(){e=new WeakMap}}}function Fa(){const e={};return{get:function(t){if(void 0!==e[t.id])return e[t.id];let n;switch(t.type){case"DirectionalLight":n={direction:new nt,color:new Sn};break;case"SpotLight":n={position:new nt,direction:new nt,color:new Sn,distance:0,coneCos:0,penumbraCos:0,decay:0};break;case"PointLight":n={position:new nt,color:new Sn,distance:0,decay:0};break;case"HemisphereLight":n={direction:new nt,skyColor:new Sn,groundColor:new Sn};break;case"RectAreaLight":n={color:new Sn,position:new nt,halfWidth:new nt,halfHeight:new nt}}return e[t.id]=n,n}}}let Ba=0;function za(e,t){return(t.castShadow?2:0)-(e.castShadow?2:0)+(t.map?1:0)-(e.map?1:0)}function Ha(e,t){const n=new Fa,i=function(){const e={};return{get:function(t){if(void 0!==e[t.id])return e[t.id];let n;switch(t.type){case"DirectionalLight":case"SpotLight":n={shadowBias:0,shadowNormalBias:0,shadowRadius:1,shadowMapSize:new Re};break;case"PointLight":n={shadowBias:0,shadowNormalBias:0,shadowRadius:1,shadowMapSize:new Re,shadowCameraNear:1,shadowCameraFar:1e3}}return e[t.id]=n,n}}}(),r={version:0,hash:{directionalLength:-1,pointLength:-1,spotLength:-1,rectAreaLength:-1,hemiLength:-1,numDirectionalShadows:-1,numPointShadows:-1,numSpotShadows:-1,numSpotMaps:-1},ambient:[0,0,0],probe:[],directional:[],directionalShadow:[],directionalShadowMap:[],directionalShadowMatrix:[],spot:[],spotLightMap:[],spotShadow:[],spotShadowMap:[],spotLightMatrix:[],rectArea:[],rectAreaLTC1:null,rectAreaLTC2:null,point:[],pointShadow:[],pointShadowMap:[],pointShadowMatrix:[],hemi:[],numSpotLightShadowsWithMaps:0};for(let l=0;l<9;l++)r.probe.push(new nt);const a=new nt,s=new Ut,o=new Ut;return{setup:function(a,s){let o=0,l=0,c=0;for(let e=0;e<9;e++)r.probe[e].set(0,0,0);let u=0,h=0,d=0,p=0,f=0,m=0,g=0,_=0,v=0,x=0;a.sort(za);const M=!0===s?Math.PI:1;for(let e=0,t=a.length;e0&&(t.isWebGL2||!0===e.has("OES_texture_float_linear")?(r.rectAreaLTC1=Ri.LTC_FLOAT_1,r.rectAreaLTC2=Ri.LTC_FLOAT_2):!0===e.has("OES_texture_half_float_linear")?(r.rectAreaLTC1=Ri.LTC_HALF_1,r.rectAreaLTC2=Ri.LTC_HALF_2):console.error("THREE.WebGLRenderer: Unable to use RectAreaLight. 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Va(e,t),a.push(s)):s=a[r],s},dispose:function(){n=new WeakMap}}}class ka extends vn{constructor(e){super(),this.isMeshDepthMaterial=!0,this.type="MeshDepthMaterial",this.depthPacking=3200,this.map=null,this.alphaMap=null,this.displacementMap=null,this.displacementScale=1,this.displacementBias=0,this.wireframe=!1,this.wireframeLinewidth=1,this.setValues(e)}copy(e){return super.copy(e),this.depthPacking=e.depthPacking,this.map=e.map,this.alphaMap=e.alphaMap,this.displacementMap=e.displacementMap,this.displacementScale=e.displacementScale,this.displacementBias=e.displacementBias,this.wireframe=e.wireframe,this.wireframeLinewidth=e.wireframeLinewidth,this}}class Wa extends vn{constructor(e){super(),this.isMeshDistanceMaterial=!0,this.type="MeshDistanceMaterial",this.map=null,this.alphaMap=null,this.displacementMap=null,this.displacementScale=1,this.displacementBias=0,this.setValues(e)}copy(e){return super.copy(e),this.map=e.map,this.alphaMap=e.alphaMap,this.displacementMap=e.displacementMap,this.displacementScale=e.displacementScale,this.displacementBias=e.displacementBias,this}}function Xa(e,t,n){let i=new Si;const r=new Re,a=new Re,o=new Ze,d=new ka({depthPacking:3201}),p=new Wa,f={},m=n.maxTextureSize,g={[c]:u,[u]:c,[h]:h},_=new ui({defines:{VSM_SAMPLES:8},uniforms:{shadow_pass:{value:null},resolution:{value:new Re},radius:{value:4}},vertexShader:"void main() {\n\tgl_Position = vec4( position, 1.0 );\n}",fragmentShader:"uniform sampler2D shadow_pass;\nuniform vec2 resolution;\nuniform float radius;\n#include \nvoid main() {\n\tconst float samples = float( VSM_SAMPLES );\n\tfloat mean = 0.0;\n\tfloat squared_mean = 0.0;\n\tfloat uvStride = samples <= 1.0 ? 0.0 : 2.0 / ( samples - 1.0 );\n\tfloat uvStart = samples <= 1.0 ? 0.0 : - 1.0;\n\tfor ( float i = 0.0; i < samples; i ++ ) {\n\t\tfloat uvOffset = uvStart + i * uvStride;\n\t\t#ifdef HORIZONTAL_PASS\n\t\t\tvec2 distribution = unpackRGBATo2Half( texture2D( shadow_pass, ( gl_FragCoord.xy + vec2( uvOffset, 0.0 ) * radius ) / resolution ) );\n\t\t\tmean += distribution.x;\n\t\t\tsquared_mean += distribution.y * distribution.y + distribution.x * distribution.x;\n\t\t#else\n\t\t\tfloat depth = unpackRGBAToDepth( texture2D( shadow_pass, ( gl_FragCoord.xy + vec2( 0.0, uvOffset ) * radius ) / resolution ) );\n\t\t\tmean += depth;\n\t\t\tsquared_mean += depth * depth;\n\t\t#endif\n\t}\n\tmean = mean / samples;\n\tsquared_mean = squared_mean / samples;\n\tfloat std_dev = sqrt( squared_mean - mean * mean );\n\tgl_FragColor = pack2HalfToRGBA( vec2( mean, std_dev ) );\n}"}),v=_.clone();v.defines.HORIZONTAL_PASS=1;const x=new zn;x.setAttribute("position",new Rn(new Float32Array([-1,-1,.5,3,-1,.5,-1,3,.5]),3));const M=new ii(x,_),y=this;this.enabled=!1,this.autoUpdate=!0,this.needsUpdate=!1,this.type=s;let E=this.type;function S(n,i){const a=t.update(M);_.defines.VSM_SAMPLES!==n.blurSamples&&(_.defines.VSM_SAMPLES=n.blurSamples,v.defines.VSM_SAMPLES=n.blurSamples,_.needsUpdate=!0,v.needsUpdate=!0),null===n.mapPass&&(n.mapPass=new Qe(r.x,r.y)),_.uniforms.shadow_pass.value=n.map.texture,_.uniforms.resolution.value=n.mapSize,_.uniforms.radius.value=n.radius,e.setRenderTarget(n.mapPass),e.clear(),e.renderBufferDirect(i,null,a,_,M,null),v.uniforms.shadow_pass.value=n.mapPass.texture,v.uniforms.resolution.value=n.mapSize,v.uniforms.radius.value=n.radius,e.setRenderTarget(n.map),e.clear(),e.renderBufferDirect(i,null,a,v,M,null)}function T(t,n,i,r){let a=null;const s=!0===i.isPointLight?t.customDistanceMaterial:t.customDepthMaterial;if(void 0!==s)a=s;else if(a=!0===i.isPointLight?p:d,e.localClippingEnabled&&!0===n.clipShadows&&Array.isArray(n.clippingPlanes)&&0!==n.clippingPlanes.length||n.displacementMap&&0!==n.displacementScale||n.alphaMap&&n.alphaTest>0||n.map&&n.alphaTest>0){const e=a.uuid,t=n.uuid;let i=f[e];void 0===i&&(i={},f[e]=i);let r=i[t];void 0===r&&(r=a.clone(),i[t]=r),a=r}if(a.visible=n.visible,a.wireframe=n.wireframe,a.side=r===l?null!==n.shadowSide?n.shadowSide:n.side:null!==n.shadowSide?n.shadowSide:g[n.side],a.alphaMap=n.alphaMap,a.alphaTest=n.alphaTest,a.map=n.map,a.clipShadows=n.clipShadows,a.clippingPlanes=n.clippingPlanes,a.clipIntersection=n.clipIntersection,a.displacementMap=n.displacementMap,a.displacementScale=n.displacementScale,a.displacementBias=n.displacementBias,a.wireframeLinewidth=n.wireframeLinewidth,a.linewidth=n.linewidth,!0===i.isPointLight&&!0===a.isMeshDistanceMaterial){e.properties.get(a).light=i}return a}function b(n,r,a,s,o){if(!1===n.visible)return;if(n.layers.test(r.layers)&&(n.isMesh||n.isLine||n.isPoints)&&(n.castShadow||n.receiveShadow&&o===l)&&(!n.frustumCulled||i.intersectsObject(n))){n.modelViewMatrix.multiplyMatrices(a.matrixWorldInverse,n.matrixWorld);const i=t.update(n),r=n.material;if(Array.isArray(r)){const t=i.groups;for(let 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null!==o&&e.gripSpace&&(r=t.getPose(e.gripSpace,n),null!==r&&(o.matrix.fromArray(r.transform.matrix),o.matrix.decompose(o.position,o.rotation,o.scale),o.matrixWorldNeedsUpdate=!0,r.linearVelocity?(o.hasLinearVelocity=!0,o.linearVelocity.copy(r.linearVelocity)):o.hasLinearVelocity=!1,r.angularVelocity?(o.hasAngularVelocity=!0,o.angularVelocity.copy(r.angularVelocity)):o.hasAngularVelocity=!1));null!==s&&(i=t.getPose(e.targetRaySpace,n),null===i&&null!==r&&(i=r),null!==i&&(s.matrix.fromArray(i.transform.matrix),s.matrix.decompose(s.position,s.rotation,s.scale),s.matrixWorldNeedsUpdate=!0,i.linearVelocity?(s.hasLinearVelocity=!0,s.linearVelocity.copy(i.linearVelocity)):s.hasLinearVelocity=!1,i.angularVelocity?(s.hasAngularVelocity=!0,s.angularVelocity.copy(i.angularVelocity)):s.hasAngularVelocity=!1,this.dispatchEvent(Ja)))}return null!==s&&(s.visible=null!==i),null!==o&&(o.visible=null!==r),null!==l&&(l.visible=null!==a),this}_getHandJoint(e,t){if(void 0===e.joints[t.jointName]){const n=new Za;n.matrixAutoUpdate=!1,n.visible=!1,e.joints[t.jointName]=n,e.add(n)}return e.joints[t.jointName]}}class $a extends Ke{constructor(e,t,n,i,r,a,s,o,l,c){if((c=void 0!==c?c:k)!==k&&c!==W)throw new Error("DepthTexture format must be either THREE.DepthFormat or THREE.DepthStencilFormat");void 0===n&&c===k&&(n=B),void 0===n&&c===W&&(n=V),super(null,i,r,a,s,o,c,n,l),this.isDepthTexture=!0,this.image={width:e,height:t},this.magFilter=void 0!==s?s:L,this.minFilter=void 0!==o?o:L,this.flipY=!1,this.generateMipmaps=!1,this.compareFunction=null}copy(e){return super.copy(e),this.compareFunction=e.compareFunction,this}toJSON(e){const t=super.toJSON(e);return null!==this.compareFunction&&(t.compareFunction=this.compareFunction),t}}class es extends pe{constructor(e,t){super();const n=this;let i=null,r=1,a=null,s="local-floor",o=1,l=null,c=null,u=null,h=null,d=null,p=null;const f=t.getContextAttributes();let m=null,g=null;const _=[],v=[],x=new di;x.layers.enable(1),x.viewport=new Ze;const M=new di;M.layers.enable(2),M.viewport=new Ze;const y=[x,M],E=new Ka;E.layers.enable(1),E.layers.enable(2);let S=null,T=null;function b(e){const t=v.indexOf(e.inputSource);if(-1===t)return;const n=_[t];void 0!==n&&(n.update(e.inputSource,e.frame,l||a),n.dispatchEvent({type:e.type,data:e.inputSource}))}function A(){i.removeEventListener("select",b),i.removeEventListener("selectstart",b),i.removeEventListener("selectend",b),i.removeEventListener("squeeze",b),i.removeEventListener("squeezestart",b),i.removeEventListener("squeezeend",b),i.removeEventListener("end",A),i.removeEventListener("inputsourceschange",w);for(let e=0;e<_.length;e++){const t=v[e];null!==t&&(v[e]=null,_[e].disconnect(t))}S=null,T=null,e.setRenderTarget(m),d=null,h=null,u=null,i=null,g=null,U.stop(),n.isPresenting=!1,n.dispatchEvent({type:"sessionend"})}function w(e){for(let t=0;t=0&&(v[i]=null,_[i].disconnect(n))}for(let t=0;t=v.length){v.push(n),i=e;break}if(null===v[e]){v[e]=n,i=e;break}}if(-1===i)break}const r=_[i];r&&r.connect(n)}}this.cameraAutoUpdate=!0,this.enabled=!1,this.isPresenting=!1,this.getController=function(e){let t=_[e];return void 0===t&&(t=new Qa,_[e]=t),t.getTargetRaySpace()},this.getControllerGrip=function(e){let t=_[e];return void 0===t&&(t=new Qa,_[e]=t),t.getGripSpace()},this.getHand=function(e){let t=_[e];return void 0===t&&(t=new Qa,_[e]=t),t.getHandSpace()},this.setFramebufferScaleFactor=function(e){r=e,!0===n.isPresenting&&console.warn("THREE.WebXRManager: Cannot change framebuffer scale while presenting.")},this.setReferenceSpaceType=function(e){s=e,!0===n.isPresenting&&console.warn("THREE.WebXRManager: Cannot change reference space type while presenting.")},this.getReferenceSpace=function(){return l||a},this.setReferenceSpace=function(e){l=e},this.getBaseLayer=function(){return null!==h?h:d},this.getBinding=function(){return u},this.getFrame=function(){return p},this.getSession=function(){return i},this.setSession=async function(c){if(i=c,null!==i){if(m=e.getRenderTarget(),i.addEventListener("select",b),i.addEventListener("selectstart",b),i.addEventListener("selectend",b),i.addEventListener("squeeze",b),i.addEventListener("squeezestart",b),i.addEventListener("squeezeend",b),i.addEventListener("end",A),i.addEventListener("inputsourceschange",w),!0!==f.xrCompatible&&await t.makeXRCompatible(),void 0===i.renderState.layers||!1===e.capabilities.isWebGL2){const n={antialias:void 0!==i.renderState.layers||f.antialias,alpha:!0,depth:f.depth,stencil:f.stencil,framebufferScaleFactor:r};d=new XRWebGLLayer(i,t,n),i.updateRenderState({baseLayer:d}),g=new Qe(d.framebufferWidth,d.framebufferHeight,{format:G,type:N,colorSpace:e.outputColorSpace,stencilBuffer:f.stencil})}else{let n=null,a=null,s=null;f.depth&&(s=f.stencil?t.DEPTH24_STENCIL8:t.DEPTH_COMPONENT24,n=f.stencil?W:k,a=f.stencil?V:B);const o={colorFormat:t.RGBA8,depthFormat:s,scaleFactor:r};u=new XRWebGLBinding(i,t),h=u.createProjectionLayer(o),i.updateRenderState({layers:[h]}),g=new Qe(h.textureWidth,h.textureHeight,{format:G,type:N,depthTexture:new $a(h.textureWidth,h.textureHeight,a,void 0,void 0,void 0,void 0,void 0,void 0,n),stencilBuffer:f.stencil,colorSpace:e.outputColorSpace,samples:f.antialias?4:0});e.properties.get(g).__ignoreDepthValues=h.ignoreDepthValues}g.isXRRenderTarget=!0,this.setFoveation(o),l=null,a=await i.requestReferenceSpace(s),U.setContext(i),U.start(),n.isPresenting=!0,n.dispatchEvent({type:"sessionstart"})}},this.getEnvironmentBlendMode=function(){if(null!==i)return i.environmentBlendMode};const R=new nt,C=new nt;function L(e,t){null===t?e.matrixWorld.copy(e.matrix):e.matrixWorld.multiplyMatrices(t.matrixWorld,e.matrix),e.matrixWorldInverse.copy(e.matrixWorld).invert()}this.updateCamera=function(e){if(null===i)return;E.near=M.near=x.near=e.near,E.far=M.far=x.far=e.far,S===E.near&&T===E.far||(i.updateRenderState({depthNear:E.near,depthFar:E.far}),S=E.near,T=E.far);const t=e.parent,n=E.cameras;L(E,t);for(let i=0;i0&&(i.alphaTest.value=r.alphaTest);const a=t.get(r).envMap;if(a&&(i.envMap.value=a,i.flipEnvMap.value=a.isCubeTexture&&!1===a.isRenderTargetTexture?-1:1,i.reflectivity.value=r.reflectivity,i.ior.value=r.ior,i.refractionRatio.value=r.refractionRatio),r.lightMap){i.lightMap.value=r.lightMap;const t=!0===e._useLegacyLights?Math.PI:1;i.lightMapIntensity.value=r.lightMapIntensity*t,n(r.lightMap,i.lightMapTransform)}r.aoMap&&(i.aoMap.value=r.aoMap,i.aoMapIntensity.value=r.aoMapIntensity,n(r.aoMap,i.aoMapTransform))}return{refreshFogUniforms:function(t,n){n.color.getRGB(t.fogColor.value,li(e)),n.isFog?(t.fogNear.value=n.near,t.fogFar.value=n.far):n.isFogExp2&&(t.fogDensity.value=n.density)},refreshMaterialUniforms:function(e,r,a,s,o){r.isMeshBasicMaterial||r.isMeshLambertMaterial?i(e,r):r.isMeshToonMaterial?(i(e,r),function(e,t){t.gradientMap&&(e.gradientMap.value=t.gradientMap)}(e,r)):r.isMeshPhongMaterial?(i(e,r),function(e,t){e.specular.value.copy(t.specular),e.shininess.value=Math.max(t.shininess,1e-4)}(e,r)):r.isMeshStandardMaterial?(i(e,r),function(e,i){e.metalness.value=i.metalness,i.metalnessMap&&(e.metalnessMap.value=i.metalnessMap,n(i.metalnessMap,e.metalnessMapTransform));e.roughness.value=i.roughness,i.roughnessMap&&(e.roughnessMap.value=i.roughnessMap,n(i.roughnessMap,e.roughnessMapTransform));const r=t.get(i).envMap;r&&(e.envMapIntensity.value=i.envMapIntensity)}(e,r),r.isMeshPhysicalMaterial&&function(e,t,i){e.ior.value=t.ior,t.sheen>0&&(e.sheenColor.value.copy(t.sheenColor).multiplyScalar(t.sheen),e.sheenRoughness.value=t.sheenRoughness,t.sheenColorMap&&(e.sheenColorMap.value=t.sheenColorMap,n(t.sheenColorMap,e.sheenColorMapTransform)),t.sheenRoughnessMap&&(e.sheenRoughnessMap.value=t.sheenRoughnessMap,n(t.sheenRoughnessMap,e.sheenRoughnessMapTransform)));t.clearcoat>0&&(e.clearcoat.value=t.clearcoat,e.clearcoatRoughness.value=t.clearcoatRoughness,t.clearcoatMap&&(e.clearcoatMap.value=t.clearcoatMap,n(t.clearcoatMap,e.clearcoatMapTransform)),t.clearcoatRoughnessMap&&(e.clearcoatRoughnessMap.value=t.clearcoatRoughnessMap,n(t.clearcoatRoughnessMap,e.clearcoatRoughnessMapTransform)),t.clearcoatNormalMap&&(e.clearcoatNormalMap.value=t.clearcoatNormalMap,n(t.clearcoatNormalMap,e.clearcoatNormalMapTransform),e.clearcoatNormalScale.value.copy(t.clearcoatNormalScale),t.side===u&&e.clearcoatNormalScale.value.negate()));t.iridescence>0&&(e.iridescence.value=t.iridescence,e.iridescenceIOR.value=t.iridescenceIOR,e.iridescenceThicknessMinimum.value=t.iridescenceThicknessRange[0],e.iridescenceThicknessMaximum.value=t.iridescenceThicknessRange[1],t.iridescenceMap&&(e.iridescenceMap.value=t.iridescenceMap,n(t.iridescenceMap,e.iridescenceMapTransform)),t.iridescenceThicknessMap&&(e.iridescenceThicknessMap.value=t.iridescenceThicknessMap,n(t.iridescenceThicknessMap,e.iridescenceThicknessMapTransform)));t.transmission>0&&(e.transmission.value=t.transmission,e.transmissionSamplerMap.value=i.texture,e.transmissionSamplerSize.value.set(i.width,i.height),t.transmissionMap&&(e.transmissionMap.value=t.transmissionMap,n(t.transmissionMap,e.transmissionMapTransform)),e.thickness.value=t.thickness,t.thicknessMap&&(e.thicknessMap.value=t.thicknessMap,n(t.thicknessMap,e.thicknessMapTransform)),e.attenuationDistance.value=t.attenuationDistance,e.attenuationColor.value.copy(t.attenuationColor));t.anisotropy>0&&(e.anisotropyVector.value.set(t.anisotropy*Math.cos(t.anisotropyRotation),t.anisotropy*Math.sin(t.anisotropyRotation)),t.anisotropyMap&&(e.anisotropyMap.value=t.anisotropyMap,n(t.anisotropyMap,e.anisotropyMapTransform)));e.specularIntensity.value=t.specularIntensity,e.specularColor.value.copy(t.specularColor),t.specularColorMap&&(e.specularColorMap.value=t.specularColorMap,n(t.specularColorMap,e.specularColorMapTransform));t.specularIntensityMap&&(e.specularIntensityMap.value=t.specularIntensityMap,n(t.specularIntensityMap,e.specularIntensityMapTransform))}(e,r,o)):r.isMeshMatcapMaterial?(i(e,r),function(e,t){t.matcap&&(e.matcap.value=t.matcap)}(e,r)):r.isMeshDepthMaterial?i(e,r):r.isMeshDistanceMaterial?(i(e,r),function(e,n){const i=t.get(n).light;e.referencePosition.value.setFromMatrixPosition(i.matrixWorld),e.nearDistance.value=i.shadow.camera.near,e.farDistance.value=i.shadow.camera.far}(e,r)):r.isMeshNormalMaterial?i(e,r):r.isLineBasicMaterial?(function(e,t){e.diffuse.value.copy(t.color),e.opacity.value=t.opacity,t.map&&(e.map.value=t.map,n(t.map,e.mapTransform))}(e,r),r.isLineDashedMaterial&&function(e,t){e.dashSize.value=t.dashSize,e.totalSize.value=t.dashSize+t.gapSize,e.scale.value=t.scale}(e,r)):r.isPointsMaterial?function(e,t,i,r){e.diffuse.value.copy(t.color),e.opacity.value=t.opacity,e.size.value=t.size*i,e.scale.value=.5*r,t.map&&(e.map.value=t.map,n(t.map,e.uvTransform));t.alphaMap&&(e.alphaMap.value=t.alphaMap,n(t.alphaMap,e.alphaMapTransform));t.alphaTest>0&&(e.alphaTest.value=t.alphaTest)}(e,r,a,s):r.isSpriteMaterial?function(e,t){e.diffuse.value.copy(t.color),e.opacity.value=t.opacity,e.rotation.value=t.rotation,t.map&&(e.map.value=t.map,n(t.map,e.mapTransform));t.alphaMap&&(e.alphaMap.value=t.alphaMap,n(t.alphaMap,e.alphaMapTransform));t.alphaTest>0&&(e.alphaTest.value=t.alphaTest)}(e,r):r.isShadowMaterial?(e.color.value.copy(r.color),e.opacity.value=r.opacity):r.isShaderMaterial&&(r.uniformsNeedUpdate=!1)}}}function ns(e,t,n,i){let r={},a={},s=[];const o=n.isWebGL2?e.getParameter(e.MAX_UNIFORM_BUFFER_BINDINGS):0;function l(e,t,n){const i=e.value;if(void 0===n[t]){if("number"==typeof i)n[t]=i;else{const e=Array.isArray(i)?i:[i],r=[];for(let t=0;t0){r=n%i;0!==r&&i-r-s.boundary<0&&(n+=i-r,e.__offset=n)}n+=s.storage}r=n%i,r>0&&(n+=i-r);e.__size=n,e.__cache={}}(n),d=function(t){const n=function(){for(let e=0;e0),h=!!n.morphAttributes.position,d=!!n.morphAttributes.normal,p=!!n.morphAttributes.color;let f=g;i.toneMapped&&(null!==w&&!0!==w.isXRRenderTarget||(f=S.toneMapping));const m=n.morphAttributes.position||n.morphAttributes.normal||n.morphAttributes.color,_=void 0!==m?m.length:0,v=de.get(i),x=M.state.lights;if(!0===Q&&(!0===$||e!==C)){const t=e===C&&i.id===R;Se.setState(i,e,t)}let y=!1;i.version===v.__version?v.needsLights&&v.lightsStateVersion!==x.state.version||v.outputColorSpace!==o||r.isInstancedMesh&&!1===v.instancing?y=!0:r.isInstancedMesh||!0!==v.instancing?r.isSkinnedMesh&&!1===v.skinning?y=!0:r.isSkinnedMesh||!0!==v.skinning?r.isInstancedMesh&&!0===v.instancingColor&&null===r.instanceColor||r.isInstancedMesh&&!1===v.instancingColor&&null!==r.instanceColor||v.envMap!==l||!0===i.fog&&v.fog!==a?y=!0:void 0===v.numClippingPlanes||v.numClippingPlanes===Se.numPlanes&&v.numIntersection===Se.numIntersection?(v.vertexAlphas!==c||v.vertexTangents!==u||v.morphTargets!==h||v.morphNormals!==d||v.morphColors!==p||v.toneMapping!==f||!0===ce.isWebGL2&&v.morphTargetsCount!==_)&&(y=!0):y=!0:y=!0:y=!0:(y=!0,v.__version=i.version);let E=v.currentProgram;!0===y&&(E=$e(i,t,r));let T=!1,b=!1,A=!1;const L=E.getUniforms(),P=v.uniforms;ue.useProgram(E.program)&&(T=!0,b=!0,A=!0);i.id!==R&&(R=i.id,b=!0);if(T||C!==e){L.setValue(Ne,"projectionMatrix",e.projectionMatrix),L.setValue(Ne,"viewMatrix",e.matrixWorldInverse);const t=L.map.cameraPosition;void 0!==t&&t.setValue(Ne,ie.setFromMatrixPosition(e.matrixWorld)),ce.logarithmicDepthBuffer&&L.setValue(Ne,"logDepthBufFC",2/(Math.log(e.far+1)/Math.LN2)),(i.isMeshPhongMaterial||i.isMeshToonMaterial||i.isMeshLambertMaterial||i.isMeshBasicMaterial||i.isMeshStandardMaterial||i.isShaderMaterial)&&L.setValue(Ne,"isOrthographic",!0===e.isOrthographicCamera),C!==e&&(C=e,b=!0,A=!0)}if(r.isSkinnedMesh){L.setOptional(Ne,r,"bindMatrix"),L.setOptional(Ne,r,"bindMatrixInverse");const e=r.skeleton;e&&(ce.floatVertexTextures?(null===e.boneTexture&&e.computeBoneTexture(),L.setValue(Ne,"boneTexture",e.boneTexture,pe),L.setValue(Ne,"boneTextureSize",e.boneTextureSize)):console.warn("THREE.WebGLRenderer: SkinnedMesh can only be used with WebGL 2. With WebGL 1 OES_texture_float and vertex textures support is required."))}const U=n.morphAttributes;(void 0!==U.position||void 0!==U.normal||void 0!==U.color&&!0===ce.isWebGL2)&&we.update(r,n,E);(b||v.receiveShadow!==r.receiveShadow)&&(v.receiveShadow=r.receiveShadow,L.setValue(Ne,"receiveShadow",r.receiveShadow));i.isMeshGouraudMaterial&&null!==i.envMap&&(P.envMap.value=l,P.flipEnvMap.value=l.isCubeTexture&&!1===l.isRenderTargetTexture?-1:1);b&&(L.setValue(Ne,"toneMappingExposure",S.toneMappingExposure),v.needsLights&&(I=A,(D=P).ambientLightColor.needsUpdate=I,D.lightProbe.needsUpdate=I,D.directionalLights.needsUpdate=I,D.directionalLightShadows.needsUpdate=I,D.pointLights.needsUpdate=I,D.pointLightShadows.needsUpdate=I,D.spotLights.needsUpdate=I,D.spotLightShadows.needsUpdate=I,D.rectAreaLights.needsUpdate=I,D.hemisphereLights.needsUpdate=I),a&&!0===i.fog&&Me.refreshFogUniforms(P,a),Me.refreshMaterialUniforms(P,i,X,W,ee),ua.upload(Ne,v.uniformsList,P,pe));var D,I;i.isShaderMaterial&&!0===i.uniformsNeedUpdate&&(ua.upload(Ne,v.uniformsList,P,pe),i.uniformsNeedUpdate=!1);i.isSpriteMaterial&&L.setValue(Ne,"center",r.center);if(L.setValue(Ne,"modelViewMatrix",r.modelViewMatrix),L.setValue(Ne,"normalMatrix",r.normalMatrix),L.setValue(Ne,"modelMatrix",r.matrixWorld),i.isShaderMaterial||i.isRawShaderMaterial){const e=i.uniformsGroups;for(let t=0,n=e.length;t0&&function(e,t,n,i){const r=ce.isWebGL2;null===ee&&(ee=new Qe(1,1,{generateMipmaps:!0,type:le.has("EXT_color_buffer_half_float")?H:N,minFilter:I,samples:r?4:0}));S.getDrawingBufferSize(ne),r?ee.setSize(ne.x,ne.y):ee.setSize(Te(ne.x),Te(ne.y));const a=S.getRenderTarget();S.setRenderTarget(ee),S.getClearColor(D),F=S.getClearAlpha(),F<1&&S.setClearColor(16777215,.5);S.clear();const s=S.toneMapping;S.toneMapping=g,Ke(e,n,i),pe.updateMultisampleRenderTarget(ee),pe.updateRenderTargetMipmap(ee);let o=!1;for(let l=0,c=t.length;l0&&Ke(r,t,n),a.length>0&&Ke(a,t,n),s.length>0&&Ke(s,t,n),ue.buffers.depth.setTest(!0),ue.buffers.depth.setMask(!0),ue.buffers.color.setMask(!0),ue.setPolygonOffset(!1)}function Ke(e,t,n){const i=!0===t.isScene?t.overrideMaterial:null;for(let r=0,a=e.length;r0?E[E.length-1]:null,y.pop(),x=y.length>0?y[y.length-1]:null},this.getActiveCubeFace=function(){return b},this.getActiveMipmapLevel=function(){return A},this.getRenderTarget=function(){return w},this.setRenderTargetTextures=function(e,t,n){de.get(e.texture).__webglTexture=t,de.get(e.depthTexture).__webglTexture=n;const i=de.get(e);i.__hasExternalTextures=!0,i.__hasExternalTextures&&(i.__autoAllocateDepthBuffer=void 0===n,i.__autoAllocateDepthBuffer||!0===le.has("WEBGL_multisampled_render_to_texture")&&(console.warn("THREE.WebGLRenderer: Render-to-texture extension was disabled because an external texture was provided"),i.__useRenderToTexture=!1))},this.setRenderTargetFramebuffer=function(e,t){const n=de.get(e);n.__webglFramebuffer=t,n.__useDefaultFramebuffer=void 0===t},this.setRenderTarget=function(e,t=0,n=0){w=e,b=t,A=n;let i=!0,r=null,a=!1,s=!1;if(e){const o=de.get(e);void 0!==o.__useDefaultFramebuffer?(ue.bindFramebuffer(Ne.FRAMEBUFFER,null),i=!1):void 0===o.__webglFramebuffer?pe.setupRenderTarget(e):o.__hasExternalTextures&&pe.rebindTextures(e,de.get(e.texture).__webglTexture,de.get(e.depthTexture).__webglTexture);const l=e.texture;(l.isData3DTexture||l.isDataArrayTexture||l.isCompressedArrayTexture)&&(s=!0);const c=de.get(e).__webglFramebuffer;e.isWebGLCubeRenderTarget?(r=Array.isArray(c[t])?c[t][n]:c[t],a=!0):r=ce.isWebGL2&&e.samples>0&&!1===pe.useMultisampledRTT(e)?de.get(e).__webglMultisampledFramebuffer:Array.isArray(c)?c[n]:c,L.copy(e.viewport),P.copy(e.scissor),U=e.scissorTest}else L.copy(Y).multiplyScalar(X).floor(),P.copy(K).multiplyScalar(X).floor(),U=Z;if(ue.bindFramebuffer(Ne.FRAMEBUFFER,r)&&ce.drawBuffers&&i&&ue.drawBuffers(e,r),ue.viewport(L),ue.scissor(P),ue.setScissorTest(U),a){const i=de.get(e.texture);Ne.framebufferTexture2D(Ne.FRAMEBUFFER,Ne.COLOR_ATTACHMENT0,Ne.TEXTURE_CUBE_MAP_POSITIVE_X+t,i.__webglTexture,n)}else if(s){const i=de.get(e.texture),r=t||0;Ne.framebufferTextureLayer(Ne.FRAMEBUFFER,Ne.COLOR_ATTACHMENT0,i.__webglTexture,n||0,r)}R=-1},this.readRenderTargetPixels=function(e,t,n,i,r,a,s){if(!e||!e.isWebGLRenderTarget)return void console.error("THREE.WebGLRenderer.readRenderTargetPixels: renderTarget is not THREE.WebGLRenderTarget.");let o=de.get(e).__webglFramebuffer;if(e.isWebGLCubeRenderTarget&&void 0!==s&&(o=o[s]),o){ue.bindFramebuffer(Ne.FRAMEBUFFER,o);try{const s=e.texture,o=s.format,l=s.type;if(o!==G&&Pe.convert(o)!==Ne.getParameter(Ne.IMPLEMENTATION_COLOR_READ_FORMAT))return void console.error("THREE.WebGLRenderer.readRenderTargetPixels: renderTarget is not in RGBA or implementation defined format.");const c=l===H&&(le.has("EXT_color_buffer_half_float")||ce.isWebGL2&&le.has("EXT_color_buffer_float"));if(!(l===N||Pe.convert(l)===Ne.getParameter(Ne.IMPLEMENTATION_COLOR_READ_TYPE)||l===z&&(ce.isWebGL2||le.has("OES_texture_float")||le.has("WEBGL_color_buffer_float"))||c))return void console.error("THREE.WebGLRenderer.readRenderTargetPixels: renderTarget is not in UnsignedByteType or implementation defined type.");t>=0&&t<=e.width-i&&n>=0&&n<=e.height-r&&Ne.readPixels(t,n,i,r,Pe.convert(o),Pe.convert(l),a)}finally{const e=null!==w?de.get(w).__webglFramebuffer:null;ue.bindFramebuffer(Ne.FRAMEBUFFER,e)}}},this.copyFramebufferToTexture=function(e,t,n=0){const i=Math.pow(2,-n),r=Math.floor(t.image.width*i),a=Math.floor(t.image.height*i);pe.setTexture2D(t,0),Ne.copyTexSubImage2D(Ne.TEXTURE_2D,n,0,0,e.x,e.y,r,a),ue.unbindTexture()},this.copyTextureToTexture=function(e,t,n,i=0){const r=t.image.width,a=t.image.height,s=Pe.convert(n.format),o=Pe.convert(n.type);pe.setTexture2D(n,0),Ne.pixelStorei(Ne.UNPACK_FLIP_Y_WEBGL,n.flipY),Ne.pixelStorei(Ne.UNPACK_PREMULTIPLY_ALPHA_WEBGL,n.premultiplyAlpha),Ne.pixelStorei(Ne.UNPACK_ALIGNMENT,n.unpackAlignment),t.isDataTexture?Ne.texSubImage2D(Ne.TEXTURE_2D,i,e.x,e.y,r,a,s,o,t.image.data):t.isCompressedTexture?Ne.compressedTexSubImage2D(Ne.TEXTURE_2D,i,e.x,e.y,t.mipmaps[0].width,t.mipmaps[0].height,s,t.mipmaps[0].data):Ne.texSubImage2D(Ne.TEXTURE_2D,i,e.x,e.y,s,o,t.image),0===i&&n.generateMipmaps&&Ne.generateMipmap(Ne.TEXTURE_2D),ue.unbindTexture()},this.copyTextureToTexture3D=function(e,t,n,i,r=0){if(S.isWebGL1Renderer)return void console.warn("THREE.WebGLRenderer.copyTextureToTexture3D: can only be used with WebGL2.");const a=e.max.x-e.min.x+1,s=e.max.y-e.min.y+1,o=e.max.z-e.min.z+1,l=Pe.convert(i.format),c=Pe.convert(i.type);let u;if(i.isData3DTexture)pe.setTexture3D(i,0),u=Ne.TEXTURE_3D;else{if(!i.isDataArrayTexture)return void console.warn("THREE.WebGLRenderer.copyTextureToTexture3D: only supports THREE.DataTexture3D and THREE.DataTexture2DArray.");pe.setTexture2DArray(i,0),u=Ne.TEXTURE_2D_ARRAY}Ne.pixelStorei(Ne.UNPACK_FLIP_Y_WEBGL,i.flipY),Ne.pixelStorei(Ne.UNPACK_PREMULTIPLY_ALPHA_WEBGL,i.premultiplyAlpha),Ne.pixelStorei(Ne.UNPACK_ALIGNMENT,i.unpackAlignment);const h=Ne.getParameter(Ne.UNPACK_ROW_LENGTH),d=Ne.getParameter(Ne.UNPACK_IMAGE_HEIGHT),p=Ne.getParameter(Ne.UNPACK_SKIP_PIXELS),f=Ne.getParameter(Ne.UNPACK_SKIP_ROWS),m=Ne.getParameter(Ne.UNPACK_SKIP_IMAGES),g=n.isCompressedTexture?n.mipmaps[0]:n.image;Ne.pixelStorei(Ne.UNPACK_ROW_LENGTH,g.width),Ne.pixelStorei(Ne.UNPACK_IMAGE_HEIGHT,g.height),Ne.pixelStorei(Ne.UNPACK_SKIP_PIXELS,e.min.x),Ne.pixelStorei(Ne.UNPACK_SKIP_ROWS,e.min.y),Ne.pixelStorei(Ne.UNPACK_SKIP_IMAGES,e.min.z),n.isDataTexture||n.isData3DTexture?Ne.texSubImage3D(u,r,t.x,t.y,t.z,a,s,o,l,c,g.data):n.isCompressedArrayTexture?(console.warn("THREE.WebGLRenderer.copyTextureToTexture3D: untested support for compressed srcTexture."),Ne.compressedTexSubImage3D(u,r,t.x,t.y,t.z,a,s,o,l,g.data)):Ne.texSubImage3D(u,r,t.x,t.y,t.z,a,s,o,l,c,g),Ne.pixelStorei(Ne.UNPACK_ROW_LENGTH,h),Ne.pixelStorei(Ne.UNPACK_IMAGE_HEIGHT,d),Ne.pixelStorei(Ne.UNPACK_SKIP_PIXELS,p),Ne.pixelStorei(Ne.UNPACK_SKIP_ROWS,f),Ne.pixelStorei(Ne.UNPACK_SKIP_IMAGES,m),0===r&&i.generateMipmaps&&Ne.generateMipmap(u),ue.unbindTexture()},this.initTexture=function(e){e.isCubeTexture?pe.setTextureCube(e,0):e.isData3DTexture?pe.setTexture3D(e,0):e.isDataArrayTexture||e.isCompressedArrayTexture?pe.setTexture2DArray(e,0):pe.setTexture2D(e,0),ue.unbindTexture()},this.resetState=function(){b=0,A=0,w=null,ue.reset(),Ue.reset()},"undefined"!=typeof __THREE_DEVTOOLS__&&__THREE_DEVTOOLS__.dispatchEvent(new CustomEvent("observe",{detail:this}))}get coordinateSystem(){return he}get physicallyCorrectLights(){return console.warn("THREE.WebGLRenderer: The property .physicallyCorrectLights has been removed. Set renderer.useLegacyLights instead."),!this.useLegacyLights}set physicallyCorrectLights(e){console.warn("THREE.WebGLRenderer: The property .physicallyCorrectLights has been removed. Set renderer.useLegacyLights instead."),this.useLegacyLights=!e}get outputEncoding(){return console.warn("THREE.WebGLRenderer: Property .outputEncoding has been removed. Use .outputColorSpace instead."),this.outputColorSpace===re?ne:3e3}set outputEncoding(e){console.warn("THREE.WebGLRenderer: Property .outputEncoding has been removed. Use .outputColorSpace instead."),this.outputColorSpace=e===ne?re:ae}get useLegacyLights(){return console.warn("THREE.WebGLRenderer: The property .useLegacyLights has been deprecated. Migrate your lighting according to the following guide: https://discourse.threejs.org/t/updates-to-lighting-in-three-js-r155/53733."),this._useLegacyLights}set useLegacyLights(e){console.warn("THREE.WebGLRenderer: The property .useLegacyLights has been deprecated. Migrate your lighting according to the following guide: https://discourse.threejs.org/t/updates-to-lighting-in-three-js-r155/53733."),this._useLegacyLights=e}}(class extends is{}).prototype.isWebGL1Renderer=!0;class rs extends rn{constructor(){super(),this.isScene=!0,this.type="Scene",this.background=null,this.environment=null,this.fog=null,this.backgroundBlurriness=0,this.backgroundIntensity=1,this.overrideMaterial=null,"undefined"!=typeof __THREE_DEVTOOLS__&&__THREE_DEVTOOLS__.dispatchEvent(new CustomEvent("observe",{detail:this}))}copy(e,t){return super.copy(e,t),null!==e.background&&(this.background=e.background.clone()),null!==e.environment&&(this.environment=e.environment.clone()),null!==e.fog&&(this.fog=e.fog.clone()),this.backgroundBlurriness=e.backgroundBlurriness,this.backgroundIntensity=e.backgroundIntensity,null!==e.overrideMaterial&&(this.overrideMaterial=e.overrideMaterial.clone()),this.matrixAutoUpdate=e.matrixAutoUpdate,this}toJSON(e){const t=super.toJSON(e);return null!==this.fog&&(t.object.fog=this.fog.toJSON()),this.backgroundBlurriness>0&&(t.object.backgroundBlurriness=this.backgroundBlurriness),1!==this.backgroundIntensity&&(t.object.backgroundIntensity=this.backgroundIntensity),t}}class as extends Ke{constructor(e=null,t=1,n=1,i,r,a,s,o,l=1003,c=1003,u,h){super(null,a,s,o,l,c,i,r,u,h),this.isDataTexture=!0,this.image={data:e,width:t,height:n},this.generateMipmaps=!1,this.flipY=!1,this.unpackAlignment=1}}class ss extends Rn{constructor(e,t,n,i=1){super(e,t,n),this.isInstancedBufferAttribute=!0,this.meshPerAttribute=i}copy(e){return super.copy(e),this.meshPerAttribute=e.meshPerAttribute,this}toJSON(){const e=super.toJSON();return e.meshPerAttribute=this.meshPerAttribute,e.isInstancedBufferAttribute=!0,e}}const os=new Ut,ls=new Ut,cs=[],us=new at,hs=new Ut,ds=new ii,ps=new St;class fs extends ii{constructor(e,t,n){super(e,t),this.isInstancedMesh=!0,this.instanceMatrix=new ss(new Float32Array(16*n),16),this.instanceColor=null,this.count=n,this.boundingBox=null,this.boundingSphere=null;for(let i=0;i=r)break e;{const s=t[1];e=r)break t}a=n,n=0}}for(;n>>1;et;)--a;if(++a,0!==r||a!==i){r>=a&&(a=Math.max(a,1),r=a-1);const e=this.getValueSize();this.times=gs(n,r,a),this.values=gs(this.values,r*e,a*e)}return this}validate(){let e=!0;const t=this.getValueSize();t-Math.floor(t)!=0&&(console.error("THREE.KeyframeTrack: Invalid value size in track.",this),e=!1);const n=this.times,i=this.values,r=n.length;0===r&&(console.error("THREE.KeyframeTrack: Track is empty.",this),e=!1);let a=null;for(let s=0;s!==r;s++){const t=n[s];if("number"==typeof t&&isNaN(t)){console.error("THREE.KeyframeTrack: Time is not a valid number.",this,s,t),e=!1;break}if(null!==a&&a>t){console.error("THREE.KeyframeTrack: Out of order keys.",this,s,t,a),e=!1;break}a=t}if(void 0!==i&&vs(i))for(let s=0,o=i.length;s!==o;++s){const t=i[s];if(isNaN(t)){console.error("THREE.KeyframeTrack: Value is not a valid number.",this,s,t),e=!1;break}}return e}optimize(){const e=gs(this.times),t=gs(this.values),n=this.getValueSize(),i=this.getInterpolation()===Q,r=e.length-1;let a=1;for(let s=1;s0){e[a]=e[r];for(let e=r*n,i=a*n,s=0;s!==n;++s)t[i+s]=t[e+s];++a}return a!==e.length?(this.times=gs(e,0,a),this.values=gs(t,0,a*n)):(this.times=e,this.values=t),this}clone(){const e=gs(this.times,0),t=gs(this.values,0),n=new(0,this.constructor)(this.name,e,t);return n.createInterpolant=this.createInterpolant,n}}Ss.prototype.TimeBufferType=Float32Array,Ss.prototype.ValueBufferType=Float32Array,Ss.prototype.DefaultInterpolation=J;class Ts extends Ss{}Ts.prototype.ValueTypeName="bool",Ts.prototype.ValueBufferType=Array,Ts.prototype.DefaultInterpolation=Z,Ts.prototype.InterpolantFactoryMethodLinear=void 0,Ts.prototype.InterpolantFactoryMethodSmooth=void 0;class bs extends Ss{}bs.prototype.ValueTypeName="color";class As extends Ss{}As.prototype.ValueTypeName="number";class ws extends xs{constructor(e,t,n,i){super(e,t,n,i)}interpolate_(e,t,n,i){const r=this.resultBuffer,a=this.sampleValues,s=this.valueSize,o=(n-t)/(i-t);let l=e*s;for(let c=l+s;l!==c;l+=4)tt.slerpFlat(r,0,a,l-s,a,l,o);return r}}class Rs extends Ss{InterpolantFactoryMethodLinear(e){return new ws(this.times,this.values,this.getValueSize(),e)}}Rs.prototype.ValueTypeName="quaternion",Rs.prototype.DefaultInterpolation=J,Rs.prototype.InterpolantFactoryMethodSmooth=void 0;class Cs extends Ss{}Cs.prototype.ValueTypeName="string",Cs.prototype.ValueBufferType=Array,Cs.prototype.DefaultInterpolation=Z,Cs.prototype.InterpolantFactoryMethodLinear=void 0,Cs.prototype.InterpolantFactoryMethodSmooth=void 0;class Ls extends Ss{}Ls.prototype.ValueTypeName="vector";const Ps={enabled:!1,files:{},add:function(e,t){!1!==this.enabled&&(this.files[e]=t)},get:function(e){if(!1!==this.enabled)return this.files[e]},remove:function(e){delete this.files[e]},clear:function(){this.files={}}};class Us{constructor(e,t,n){const i=this;let r,a=!1,s=0,o=0;const l=[];this.onStart=void 0,this.onLoad=e,this.onProgress=t,this.onError=n,this.itemStart=function(e){o++,!1===a&&void 0!==i.onStart&&i.onStart(e,s,o),a=!0},this.itemEnd=function(e){s++,void 0!==i.onProgress&&i.onProgress(e,s,o),s===o&&(a=!1,void 0!==i.onLoad&&i.onLoad())},this.itemError=function(e){void 0!==i.onError&&i.onError(e)},this.resolveURL=function(e){return r?r(e):e},this.setURLModifier=function(e){return r=e,this},this.addHandler=function(e,t){return l.push(e,t),this},this.removeHandler=function(e){const t=l.indexOf(e);return-1!==t&&l.splice(t,2),this},this.getHandler=function(e){for(let t=0,n=l.length;t{n.d(t,{o:()=>h});var i=n(9477);const r={type:"change"},a={type:"start"},s={type:"end"},o=new i.zHn,l=new i.JOQ,c=Math.cos(70*i.M8C.DEG2RAD);class u extends i.pBf{constructor(e,t){super(),this.object=e,this.domElement=t,this.domElement.style.touchAction="none",this.enabled=!0,this.target=new i.Pa4,this.minDistance=0,this.maxDistance=1/0,this.minZoom=0,this.maxZoom=1/0,this.minPolarAngle=0,this.maxPolarAngle=Math.PI,this.minAzimuthAngle=-1/0,this.maxAzimuthAngle=1/0,this.enableDamping=!1,this.dampingFactor=.05,this.enableZoom=!0,this.zoomSpeed=1,this.enableRotate=!0,this.rotateSpeed=1,this.enablePan=!0,this.panSpeed=1,this.screenSpacePanning=!0,this.keyPanSpeed=7,this.zoomToCursor=!1,this.autoRotate=!1,this.autoRotateSpeed=2,this.keys={LEFT:"ArrowLeft",UP:"ArrowUp",RIGHT:"ArrowRight",BOTTOM:"ArrowDown"},this.mouseButtons={LEFT:i.RsA.ROTATE,MIDDLE:i.RsA.DOLLY,RIGHT:i.RsA.PAN},this.touches={ONE:i.QmN.ROTATE,TWO:i.QmN.DOLLY_PAN},this.target0=this.target.clone(),this.position0=this.object.position.clone(),this.zoom0=this.object.zoom,this._domElementKeyEvents=null,this.getPolarAngle=function(){return p.phi},this.getAzimuthalAngle=function(){return p.theta},this.getDistance=function(){return this.object.position.distanceTo(this.target)},this.listenToKeyEvents=function(e){e.addEventListener("keydown",$),this._domElementKeyEvents=e},this.stopListenToKeyEvents=function(){this._domElementKeyEvents.removeEventListener("keydown",$),this._domElementKeyEvents=null},this.saveState=function(){n.target0.copy(n.target),n.position0.copy(n.object.position),n.zoom0=n.object.zoom},this.reset=function(){n.target.copy(n.target0),n.object.position.copy(n.position0),n.object.zoom=n.zoom0,n.object.updateProjectionMatrix(),n.dispatchEvent(r),n.update(),h=u.NONE},this.update=function(){const t=new i.Pa4,a=(new i._fP).setFromUnitVectors(e.up,new i.Pa4(0,1,0)),s=a.clone().invert(),_=new i.Pa4,v=new i._fP,x=new i.Pa4,M=2*Math.PI;return function(y=null){const E=n.object.position;t.copy(E).sub(n.target),t.applyQuaternion(a),p.setFromVector3(t),n.autoRotate&&h===u.NONE&&U(function(e){return null!==e?2*Math.PI/60*n.autoRotateSpeed*e:2*Math.PI/60/60*n.autoRotateSpeed}(y)),n.enableDamping?(p.theta+=f.theta*n.dampingFactor,p.phi+=f.phi*n.dampingFactor):(p.theta+=f.theta,p.phi+=f.phi);let S=n.minAzimuthAngle,T=n.maxAzimuthAngle;isFinite(S)&&isFinite(T)&&(S<-Math.PI?S+=M:S>Math.PI&&(S-=M),T<-Math.PI?T+=M:T>Math.PI&&(T-=M),p.theta=S<=T?Math.max(S,Math.min(T,p.theta)):p.theta>(S+T)/2?Math.max(S,p.theta):Math.min(T,p.theta)),p.phi=Math.max(n.minPolarAngle,Math.min(n.maxPolarAngle,p.phi)),p.makeSafe(),!0===n.enableDamping?n.target.addScaledVector(g,n.dampingFactor):n.target.add(g),n.zoomToCursor&&R||n.object.isOrthographicCamera?p.radius=H(p.radius):p.radius=H(p.radius*m),t.setFromSpherical(p),t.applyQuaternion(s),E.copy(n.target).add(t),n.object.lookAt(n.target),!0===n.enableDamping?(f.theta*=1-n.dampingFactor,f.phi*=1-n.dampingFactor,g.multiplyScalar(1-n.dampingFactor)):(f.set(0,0,0),g.set(0,0,0));let b=!1;if(n.zoomToCursor&&R){let r=null;if(n.object.isPerspectiveCamera){const e=t.length();r=H(e*m);const i=e-r;n.object.position.addScaledVector(A,i),n.object.updateMatrixWorld()}else if(n.object.isOrthographicCamera){const e=new i.Pa4(w.x,w.y,0);e.unproject(n.object),n.object.zoom=Math.max(n.minZoom,Math.min(n.maxZoom,n.object.zoom/m)),n.object.updateProjectionMatrix(),b=!0;const a=new i.Pa4(w.x,w.y,0);a.unproject(n.object),n.object.position.sub(a).add(e),n.object.updateMatrixWorld(),r=t.length()}else console.warn("WARNING: OrbitControls.js encountered an unknown camera type - zoom to cursor disabled."),n.zoomToCursor=!1;null!==r&&(this.screenSpacePanning?n.target.set(0,0,-1).transformDirection(n.object.matrix).multiplyScalar(r).add(n.object.position):(o.origin.copy(n.object.position),o.direction.set(0,0,-1).transformDirection(n.object.matrix),Math.abs(n.object.up.dot(o.direction))d||8*(1-v.dot(n.object.quaternion))>d||x.distanceToSquared(n.target)>0)&&(n.dispatchEvent(r),_.copy(n.object.position),v.copy(n.object.quaternion),x.copy(n.target),b=!1,!0)}}(),this.dispose=function(){n.domElement.removeEventListener("contextmenu",ee),n.domElement.removeEventListener("pointerdown",K),n.domElement.removeEventListener("pointercancel",J),n.domElement.removeEventListener("wheel",Q),n.domElement.removeEventListener("pointermove",Z),n.domElement.removeEventListener("pointerup",J),null!==n._domElementKeyEvents&&(n._domElementKeyEvents.removeEventListener("keydown",$),n._domElementKeyEvents=null)};const n=this,u={NONE:-1,ROTATE:0,DOLLY:1,PAN:2,TOUCH_ROTATE:3,TOUCH_PAN:4,TOUCH_DOLLY_PAN:5,TOUCH_DOLLY_ROTATE:6};let h=u.NONE;const d=1e-6,p=new i.$V,f=new i.$V;let m=1;const g=new i.Pa4,_=new i.FM8,v=new i.FM8,x=new i.FM8,M=new i.FM8,y=new i.FM8,E=new i.FM8,S=new i.FM8,T=new i.FM8,b=new i.FM8,A=new i.Pa4,w=new i.FM8;let R=!1;const C=[],L={};function P(){return Math.pow(.95,n.zoomSpeed)}function U(e){f.theta-=e}function D(e){f.phi-=e}const I=function(){const e=new i.Pa4;return function(t,n){e.setFromMatrixColumn(n,0),e.multiplyScalar(-t),g.add(e)}}(),N=function(){const e=new i.Pa4;return function(t,i){!0===n.screenSpacePanning?e.setFromMatrixColumn(i,1):(e.setFromMatrixColumn(i,0),e.crossVectors(n.object.up,e)),e.multiplyScalar(t),g.add(e)}}(),O=function(){const e=new i.Pa4;return function(t,i){const r=n.domElement;if(n.object.isPerspectiveCamera){const a=n.object.position;e.copy(a).sub(n.target);let s=e.length();s*=Math.tan(n.object.fov/2*Math.PI/180),I(2*t*s/r.clientHeight,n.object.matrix),N(2*i*s/r.clientHeight,n.object.matrix)}else n.object.isOrthographicCamera?(I(t*(n.object.right-n.object.left)/n.object.zoom/r.clientWidth,n.object.matrix),N(i*(n.object.top-n.object.bottom)/n.object.zoom/r.clientHeight,n.object.matrix)):(console.warn("WARNING: OrbitControls.js encountered an unknown camera type - pan disabled."),n.enablePan=!1)}}();function F(e){n.object.isPerspectiveCamera||n.object.isOrthographicCamera?m/=e:(console.warn("WARNING: OrbitControls.js encountered an unknown camera type - dolly/zoom disabled."),n.enableZoom=!1)}function B(e){n.object.isPerspectiveCamera||n.object.isOrthographicCamera?m*=e:(console.warn("WARNING: OrbitControls.js encountered an unknown camera type - dolly/zoom disabled."),n.enableZoom=!1)}function z(e){if(!n.zoomToCursor)return;R=!0;const 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",(0,i.kt)("strong",{parentName:"p"},"modern GPU")," graphics pipeline to render ",(0,i.kt)("strong",{parentName:"p"},"brush strokes")," on ",(0,i.kt)("strong",{parentName:"p"},"vector curves"),".\nThe contents mainly come from my research work ",(0,i.kt)("a",{parentName:"p",href:"https://github.com/ShenCiao/Ciallo"},"Ciallo: The next generation vector paint program"),".\nI will introduce this tutorial from the three aspects above."),(0,i.kt)("h2",{id:"modern-gpu"},"Modern GPU"),(0,i.kt)("p",null,(0,i.kt)("img",{alt:"sketchpad",src:r(8138).Z,width:"480",height:"360"})),(0,i.kt)("p",null,(0,i.kt)("em",{parentName:"p"},"Draw lines in Ivan Sutherland's Sketchpad.")),(0,i.kt)("p",null,"Drawing lines or rendering strokes is one of the oldest topics in Computer Graphics.\nYou can easily find a lot of pioneering works, for example, ",(0,i.kt)("a",{parentName:"p",href:"https://en.wikipedia.org/wiki/Bresenham%27s_line_algorithm"},"Bresenham's line algorithm"),".\nThey emerged from an era with certain conditions:"),(0,i.kt)("ul",null,(0,i.kt)("li",{parentName:"ul"},"Programs ran without the benefit of parallelization."),(0,i.kt)("li",{parentName:"ul"},"Programs could access framebuffer directly without significant performance penalty.")),(0,i.kt)("p",null,"But time has changed, now we have modern GPU hardware crafted for graphics and parallel computing,\nand directly accessing a GPU framebuffer from a CPU can significantly hurt the performance.\nSo old algorithms may not satisfy your needs for real-time rendering."),(0,i.kt)("p",null,"In this tutorial, you will learn about the brush stroke rendering (or brush rendering, stroke rendering for abbreviation)\nalgorithms designed for the GPU graphics pipeline.\nWe (I and my mentor ",(0,i.kt)("a",{parentName:"p",href:"https://www.liyiwei.org/"},"Liyi-Wei"),") name these algorithms as ",(0,i.kt)("em",{parentName:"p"},"Articulated")," in our paper (mainly because they look like drawing an articulated arm).\nI assume our readers are already familiar with a graphics API like OpenGL or D3D.\nThis tutorial will concentrate more on the high-level algorithms than the implementation details."),(0,i.kt)("p",null,"Although graphics APIs provide us line primitives, including ",(0,i.kt)("inlineCode",{parentName:"p"},"LINES"),", ",(0,i.kt)("inlineCode",{parentName:"p"},"LINE_STRIP"),", and ",(0,i.kt)("inlineCode",{parentName:"p"},"LINE_LOOP"),",\nthere are several well-known issues when using these primitives directly.\nCheck out Matt Deslauries' article ",(0,i.kt)("a",{parentName:"p",href:"https://mattdesl.svbtle.com/drawing-lines-is-hard#line-primitives_1"},(0,i.kt)("em",{parentName:"a"},"Drawing Lines is Hard"))," if you know nothing about them.\nAs for the brush rendering, the most significant issue is the limitation on the maximum line width or stroke radius.\nWe must be able to fully control the radius values when rendering brush strokes."),(0,i.kt)("h2",{id:"brush-strokes"},"Brush strokes"),(0,i.kt)("p",null,"Brush strokes refer to strokes drawn with the paint tool in graphics software such as Photoshop or Krita.\nArtists configure their digital brushes to control stroke properties like radius or stylization,\nthen stroke on the canvas with dedicated input devices: Tablet and Stylus.\nIf you're unfamiliar with tablets and styluses, you can watch the video below for more information:"),(0,i.kt)("p",null,(0,i.kt)("a",{parentName:"p",href:"https://www.youtube.com/watch?app=desktop&v=83BRMfjJXIk"},(0,i.kt)("img",{parentName:"a",src:"https://img.youtube.com/vi/83BRMfjJXIk/maxresdefault.jpg",alt:"Tablet"}))),(0,i.kt)("p",null,"While you may recognize a brush stroke by its stylization, another crucial property could be ignored: the mutable (varying) radius along the stroke.\n(I ignored it in my paper too.)\nThe radii are typically generated from the pressure values as a stylus presses and moves on a tablet.\nFor experienced artists after installing a painting program, one of the highest priorities is to configure the mapping function from pen pressure to brush radius."),(0,i.kt)("p",null,'In this tutorial, you will learn to render a stroke with mutable radius, and the most popular way to stylize it called "Stamp."\nMore than 90 percent of brushes in popular paint software are the stamp brushes.\nAdditionally, GPU brush stroke rendering a newly emerged topic.\nResearchers will develop more novel methods in the future.\nSo I will continuously update this tutorial series to teach them.\nMake sure to star our ',(0,i.kt)("a",{parentName:"p",href:"https://github.com/ShenCiao/BrushStrokeTutorial"},"code repository")," for easy access to the latest updates."),(0,i.kt)("h2",{id:"vector-curves"},"Vector curves"),(0,i.kt)("p",null,"Mutable radius is imperative for the most artists working on digital painting,\nbut it's not defined in public vector standards like SVG.\nThis limitation is one of the primary reasons that lots of digital artists don't use vector workflow.\n(Another one is filling color.)"),(0,i.kt)("p",null,"To support the mutable radius, we will render a unique type of vector curve:\nAn ordered list of points (polyline) with radius values assigned to each point.\nAs a stylus is pressed and moved on a tablet, the program generate a sequence of points to record the trace of movement.\nAdditionally, the pen pressure is transformed into the radius value assigned to each point."),(0,i.kt)("p",null,"We can approximate any type of curve by increasing the number of points in a polyline, whether freehand-drawn or mathematically defined."),(0,i.kt)("h2",{id:"structure"},"Structure"),(0,i.kt)("p",null,"Although the algorithms are very straightforward, I know how hard it could be to learn and replicate a research work.\nThat's why I created this tutorial, designed with a smooth learning curve and providing seamless coding environments."),(0,i.kt)("p",null,"You should start with the Basic part, which covers the basics of the rendering methods.\nRemember to read the articles in the Basic part in its original order, or you may miss something important.\nNext, select your favorite topics to learn.\nI will list the extra prerequisites at the very beginning of each article."),(0,i.kt)("p",null,"Wish you happy learning!"),(0,i.kt)("h2",{id:"citation"},"Citation"),(0,i.kt)("pre",null,(0,i.kt)("code",{parentName:"pre"},"@inproceedings{Ciallo2023,\n author = {Ciao, Shen and Wei, Li-Yi},\n title = {Ciallo: The next-Generation Vector Paint Program},\n year = {2023},\n isbn = {9798400701436},\n publisher = {Association for Computing Machinery},\n address = {New York, NY, USA},\n url = {https://doi.org/10.1145/3587421.3595418},\n doi = {10.1145/3587421.3595418},\n booktitle = {ACM SIGGRAPH 2023 Talks},\n articleno = {67},\n numpages = {2},\n keywords = {Digital painting, stylized stroke, arrangement, vector graphics. coloring, graphics processing unit (GPU)},\n location = {Los Angeles, CA, USA},\n series = {SIGGRAPH '23}\n}\n")),(0,i.kt)("admonition",{title:"Research Tip",type:"note"},(0,i.kt)("p",{parentName:"admonition"},"To demonstrate your research work about brush rendering, select vector drawings have mutable radius or pen pressure data.\nRegular vector drawing datasets don't contain them."),(0,i.kt)("ul",{parentName:"admonition"},(0,i.kt)("li",{parentName:"ul"},"Zeyu Wang's work: ",(0,i.kt)("a",{parentName:"li",href:"https://dl.acm.org/doi/10.1145/3450626.3459819"},"Paper")," | ",(0,i.kt)("a",{parentName:"li",href:"https://github.com/zachzeyuwang/tracing-vs-freehand"},"Dataset")),(0,i.kt)("li",{parentName:"ul"},(0,i.kt)("a",{parentName:"li",href:"https://cloud.blender.org/p/gallery/5b642e25bf419c1042056fc6"},"Blender Grease Pencil")),(0,i.kt)("li",{parentName:"ul"},"Tell me more..."))))}h.isMDXComponent=!0},8138:(e,t,r)=>{r.d(t,{Z:()=>n});const n=r.p+"assets/images/sketchpad-be46fe81f29f99371fdce79d1452ae85.gif"}}]); \ No newline at end of file diff --git a/assets/js/ac092286.786a399f.js 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curves.",source:"@site/docs/Introduction/Introduction.mdx",sourceDirName:"Introduction",slug:"/Introduction/",permalink:"/brush-stroke-tutorial/Introduction/",draft:!1,editUrl:"https://github.com/ShenCiao/brush-stroke-tutorial/tree/main/docs/Introduction/Introduction.mdx",tags:[],version:"current",sidebarPosition:2,frontMatter:{title:"Introduction",sidebar_position:2},sidebar:"tutorialSidebar",previous:{title:"Table of Contents",permalink:"/brush-stroke-tutorial/"},next:{title:"Basics",permalink:"/brush-stroke-tutorial/category/basics"}},c={},u=[{value:"Modern GPU",id:"modern-gpu",level:2},{value:"Brush strokes",id:"brush-strokes",level:2},{value:"Vector curves",id:"vector-curves",level:2},{value:"Structure",id:"structure",level:2},{value:"Citation",id:"citation",level:2}],d={toc:u},p="wrapper";function h(e){let{components:t,...i}=e;return(0,r.kt)(p,(0,a.Z)({},d,i,{components:t,mdxType:"MDXLayout"}),(0,r.kt)("p",null,"This tutorial series will teach you how to use the ",(0,r.kt)("strong",{parentName:"p"},"modern GPU")," graphics pipeline to render ",(0,r.kt)("strong",{parentName:"p"},"brush strokes")," on ",(0,r.kt)("strong",{parentName:"p"},"vector curves"),".\nThe contents mainly come from my research work ",(0,r.kt)("a",{parentName:"p",href:"https://github.com/ShenCiao/Ciallo"},"Ciallo: The next generation vector paint program"),".\nI will introduce this tutorial from the three aspects above."),(0,r.kt)("h2",{id:"modern-gpu"},"Modern GPU"),(0,r.kt)("p",null,(0,r.kt)("img",{alt:"sketchpad",src:n(8138).Z,width:"480",height:"360"})),(0,r.kt)("p",null,(0,r.kt)("em",{parentName:"p"},"Draw lines in Ivan Sutherland's Sketchpad.")),(0,r.kt)("p",null,"Drawing lines or rendering strokes is one of the oldest topics in Computer Graphics.\nYou can easily find a lot of pioneering works, for example, ",(0,r.kt)("a",{parentName:"p",href:"https://en.wikipedia.org/wiki/Bresenham%27s_line_algorithm"},"Bresenham's line algorithm"),".\nThey emerged from an era with certain conditions:"),(0,r.kt)("ul",null,(0,r.kt)("li",{parentName:"ul"},"Programs ran without the benefit of parallelization."),(0,r.kt)("li",{parentName:"ul"},"Programs could access framebuffer directly without significant performance penalty.")),(0,r.kt)("p",null,"But time has changed, now we have modern GPU hardware crafted for graphics and parallel computing,\nand directly accessing a GPU framebuffer from a CPU can significantly hurt the performance.\nSo old algorithms may not satisfy your needs for real-time rendering."),(0,r.kt)("p",null,"In this tutorial, you will learn about the brush stroke rendering algorithms designed for the GPU graphics pipeline.\nWe (I and my mentor ",(0,r.kt)("a",{parentName:"p",href:"https://www.liyiwei.org/"},"Liyi-Wei"),") call these algorithms ",(0,r.kt)("em",{parentName:"p"},"Articulated")," in our paper, because they look like drawing an articulated arm.\nI assume our readers are already familiar with a graphics API like OpenGL or D3D.\nThis tutorial will concentrate more on the high-level algorithms than the implementation details."),(0,r.kt)("p",null,"Although graphics APIs provide us line primitives, including ",(0,r.kt)("inlineCode",{parentName:"p"},"LINES"),", ",(0,r.kt)("inlineCode",{parentName:"p"},"LINE_STRIP"),", and ",(0,r.kt)("inlineCode",{parentName:"p"},"LINE_LOOP"),",\nthere are several well-known issues when using these primitives directly.\nCheck out Matt Deslauries' article ",(0,r.kt)("a",{parentName:"p",href:"https://mattdesl.svbtle.com/drawing-lines-is-hard#line-primitives_1"},(0,r.kt)("em",{parentName:"a"},"Drawing Lines is Hard"))," if you know nothing about them.\nAs for our brush rendering, the most significant issue is the limitation on the maximum line width or stroke radius (half width).\nWe must be able to fully control the radius values when rendering brush strokes."),(0,r.kt)("h2",{id:"brush-strokes"},"Brush strokes"),(0,r.kt)("p",null,"Brush strokes refer to strokes drawn with the paint tool in graphics software such as Photoshop or Krita.\nArtists configure their digital brushes to control stroke properties like radius or stylization,\nthen stroke on the canvas with dedicated input devices: Tablet and Stylus.\nIf you're unfamiliar with tablets and styluses, you can watch the video below for more information:"),(0,r.kt)("p",null,(0,r.kt)("a",{parentName:"p",href:"https://www.youtube.com/watch?app=desktop&v=83BRMfjJXIk"},(0,r.kt)("img",{parentName:"a",src:"https://img.youtube.com/vi/83BRMfjJXIk/maxresdefault.jpg",alt:"Tablet"}))),(0,r.kt)("p",null,"While you may recognize a brush stroke by its stylization, another crucial property could be ignored: the variable radius along the stroke.\n(I ignored it in my paper too.)\nThe radii are typically generated from the pressure values as a stylus presses and moves on a tablet.\nFor experienced artists after installing a painting program, one of the highest priorities is to configure the mapping function from pen pressure to brush radius."),(0,r.kt)("p",null,'In this tutorial, you will learn to render a stroke with variable radius, and the most popular way to stylize it called "Stamp."\nMore than 90 percent of brushes in popular paint software are the stamp brushes.\nAdditionally, GPU brush stroke rendering a newly emerged topic.\nResearchers will develop more novel methods in the future.\nSo I will continuously update this tutorial series to teach them.\nMake sure to star our ',(0,r.kt)("a",{parentName:"p",href:"https://github.com/ShenCiao/BrushStrokeTutorial"},"code repository")," for easy access to the latest updates."),(0,r.kt)("h2",{id:"vector-curves"},"Vector curves"),(0,r.kt)("p",null,"Variable radius is imperative for the most artists working on digital painting,\nbut it's not included in public vector standards like ",(0,r.kt)("a",{parentName:"p",href:"https://www.w3.org/Graphics/SVG/WG/wiki/Proposals/Variable_width_stroke"},"SVG"),".\nAnd since that, configuring the variable width value of vector lines is commonly underdeveloped in popular graphics design software.\nThis limitation is one of the primary reasons that lots of digital artists don't use vector workflow.\n(Another one is filling color.)"),(0,r.kt)("p",null,"To support the variable radius, we will render a unique type of vector curve:\nAn ordered list of points (polyline) with radius values assigned to each point.\nAs a stylus is pressed and moved on a tablet, the program generate a sequence of points to record the trace of movement.\nAdditionally, the pen pressure is transformed into the radius value assigned to each point."),(0,r.kt)("p",null,"We can approximate any type of curve by increasing the number of points in a polyline, whether freehand-drawn or mathematically defined.\nTry to change the ",(0,r.kt)("inlineCode",{parentName:"p"},"maxRadius")," and ",(0,r.kt)("inlineCode",{parentName:"p"},"segmentCount")," value in the code editor below to see how the stroke changes.\nFeel free to change any other parts of the code as long as the function return the ",(0,r.kt)("inlineCode",{parentName:"p"},"position")," and ",(0,r.kt)("inlineCode",{parentName:"p"},"radius")," array correctly."),(0,r.kt)(o.ij,{showEditor:[!0,!1,!1],mdxType:"ArticulatedLine2D"}),(0,r.kt)("admonition",{title:"code editor & canvas",type:"info"},(0,r.kt)("p",{parentName:"admonition"},"The development environment is inspired by ",(0,r.kt)("a",{parentName:"p",href:"https://thebookofshaders.com/"},(0,r.kt)("em",{parentName:"a"},"The Book of Shader")),".\nYou can watch the rendering result in real time after modifying the code."),(0,r.kt)("p",{parentName:"admonition"},"When hovering your mouse on the canvas you can:"),(0,r.kt)("ul",{parentName:"admonition"},(0,r.kt)("li",{parentName:"ul"},(0,r.kt)("strong",{parentName:"li"},"Pan"),": Left-click and drag the mouse."),(0,r.kt)("li",{parentName:"ul"},(0,r.kt)("strong",{parentName:"li"},"Zoom"),": Scroll or drag the mouse wheel.")),(0,r.kt)("p",{parentName:"admonition"},"If there are bugs for common usages, tell me in the ",(0,r.kt)("a",{parentName:"p",href:"https://github.com/ShenCiao/brush-stroke-tutorial/issues"},"issue")," page.")),(0,r.kt)("h2",{id:"structure"},"Structure"),(0,r.kt)("p",null,"Although the algorithms are very straightforward, I know how hard it could be to learn and replicate a research work.\nThat's why I created this tutorial, designed with a smooth learning curve and providing the seamless development environment."),(0,r.kt)("p",null,"You should start with the Basic part, which covers the basics of the rendering methods.\nRemember to read the articles in the Basic part in its original order, or you may miss something important.\nNext, select your favorite topics to learn.\nI will list extra prerequisites at the very beginning of each article."),(0,r.kt)("p",null,"Wish you happy learning!"),(0,r.kt)("h2",{id:"citation"},"Citation"),(0,r.kt)("pre",null,(0,r.kt)("code",{parentName:"pre"},"@inproceedings{Ciallo2023,\n author = {Ciao, Shen and Wei, Li-Yi},\n title = {Ciallo: The next-Generation Vector Paint Program},\n year = {2023},\n isbn = {9798400701436},\n publisher = {Association for Computing Machinery},\n address = {New York, NY, USA},\n url = {https://doi.org/10.1145/3587421.3595418},\n doi = {10.1145/3587421.3595418},\n booktitle = {ACM SIGGRAPH 2023 Talks},\n articleno = {67},\n numpages = {2},\n keywords = {Digital painting, stylized stroke, arrangement, vector graphics. coloring, graphics processing unit (GPU)},\n location = {Los Angeles, CA, USA},\n series = {SIGGRAPH '23}\n}\n")),(0,r.kt)("admonition",{title:"Research Tip",type:"note"},(0,r.kt)("p",{parentName:"admonition"},"To demonstrate your research work about brush rendering, select vector drawings have variable radius or pen pressure data.\nRegular vector drawing datasets don't contain them."),(0,r.kt)("ul",{parentName:"admonition"},(0,r.kt)("li",{parentName:"ul"},"Zeyu Wang's work: 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