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cube_light.html
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<!DOCTYPE html>
<html>
<link rel="stylesheet" type="text/css" href="button.css" />
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<script id="vertex-shader" type="x-shader/x-vertex">
attribute vec4 vPosition;
attribute vec3 vNormal;
varying vec4 fColor;
attribute vec4 vColor;
attribute vec2 vTexCoord;
varying vec2 fTexCoord;
uniform vec4 ambientProduct, diffuseProduct, specularProduct;
uniform mat4 modelViewMatrix;
uniform mat4 projectionMatrix;
uniform vec4 lightPosition;
uniform float shininess;
uniform vec3 theta;
uniform vec3 zoom;
uniform vec3 trans;
void main()
{
vec3 angles = radians( theta );
vec3 c = cos( angles );
vec3 s = sin( angles );
mat4 zm = mat4( zoom.x, 0.0, 0.0, 0.0,
0.0, zoom.y, 0.0, 0.0,
0.0, 0.0, zoom.z, 0.0,
0.0, 0.0, 0.0, 1.0 );
mat4 tm = mat4(
1.0, 0.0, 0.0, 0.0,
0.0, 1.0, 0.0, 0.0,
0.0, 0.0, 1.0, 0.0,
trans.x, trans.y, trans.z, 1.0);
mat4 rx = mat4( 1.0, 0.0, 0.0, 0.0,
0.0, c.x, s.x, 0.0,
0.0, -s.x, c.x, 0.0,
0.0, 0.0, 0.0, 1.0 ); //x粣唅蛌
mat4 ry = mat4( c.y, 0.0, -s.y, 0.0,
0.0, 1.0, 0.0, 0.0,
s.y, 0.0, c.y, 0.0,
0.0, 0.0, 0.0, 1.0 ); //y粣唅蛌
mat4 rz = mat4( c.z, s.z, 0.0, 0.0,
-s.z, c.z, 0.0, 0.0,
0.0, 0.0, 1.0, 0.0,
0.0, 0.0, 0.0, 1.0 ); //z粣唅蛌
gl_Position = tm*zm*vPosition;
//gl_Position.z = -gl_Position.z;
vec3 pos = -(modelViewMatrix * vPosition).xyz;
//fixed light postion
vec3 light = lightPosition.xyz;
vec3 L = normalize( light - pos );
vec3 E = normalize( -pos );
vec3 H = normalize( L + E );
vec4 NN = vec4(vNormal,0);
// Transform vertex normal into eye coordinates
vec3 N = normalize( (modelViewMatrix*NN).xyz);
// Compute terms in the illumination equation
vec4 ambient = ambientProduct;
float Kd = max( dot(L, N), 0.0 );
vec4 diffuse = Kd*diffuseProduct;
float Ks = pow( max(dot(N, H), 0.0), shininess );
vec4 specular = Ks * specularProduct;
if( dot(L, N) < 0.0 ) {
specular = vec4(0.0, 0.0, 0.0, 1.0);
}
fColor = (ambient + diffuse +specular)*vColor;
fColor.a = 1.0;
fTexCoord = vTexCoord;
gl_Position = projectionMatrix * modelViewMatrix * gl_Position;
}
</script>
<script id="fragment-shader" type="x-shader/x-fragment">
precision mediump float;
varying vec4 fColor;
varying vec2 fTexCoord;
uniform sampler2D Tex0;
uniform sampler2D Tex1;
void
main()
{
gl_FragColor = fColor*texture2D( Tex0, fTexCoord );
}
</script>
<script type="text/javascript" src="Common/webgl-utils.js"></script>
<script type="text/javascript" src="Common/initShaders.js"></script>
<script type="text/javascript" src="Common/MV.js"></script>
<script type="text/javascript" src="Common/math_circle.js"></script>
<script type="text/javascript" src="cube.js"></script>
<body>
<canvas id="gl-canvas" width="512"" height="512">
Oops ... your browser doesn't support the HTML5 canvas element
</canvas>
<br/>
<p>�典�</p>
<button class="button white medium" id= "RotateAllX">X�蓮</button>
<button class="button white medium" id= "RotateAllY">Y�蓮</button>
<button class="button white medium" id= "RotateAllZ">Z�蓮</button>
<button class="button white medium" id= "ZoomInAll">�曉之</button>
<button class="button white medium" id= "ZoomOutAll">蝻拙�</button>
<button class="button white medium" id= "PauaeAll">��/�剜</button>
<button class="button white medium" id= "MoveDownAll">��蝘餃</button>
<button class="button white medium" id= "MoveUpAll">��蝘餃</button>
<p>蝚砌�銝芸�瘥�</p>
<button class="button orange medium" id= "RotateFirstX">X�蓮</button>
<button class="button orange medium" id= "RotateFirstY">Y�蓮</button>
<button class="button orange medium" id= "RotateFirstZ">Z�蓮</button>
<button class="button orange medium" id= "ZoomInFirst">�曉之</button>
<button class="button orange medium" id= "ZoomOutFirst">蝻拙�</button>
<button class="button orange medium" id= "PauaeFirst">��/�剜</button>
<button class="button orange medium" id= "MoveDownFirst">��蝘餃</button>
<button class="button orange medium" id= "MoveUpFirst">��蝘餃</button>
<p>蝚砌�銝芸�瘥�</p>
<button class="button blue medium" id= "RotateSecondX">X�蓮</button>
<button class="button blue medium" id= "RotateSecondY">Y�蓮</button>
<button class="button blue medium" id= "RotateSecondZ">Z�蓮</button>
<button class="button blue medium" id= "ZoomInSecond">�曉之</button>
<button class="button blue medium" id= "ZoomOutSecond">蝻拙�</button>
<button class="button blue medium" id= "PauaeSecond">��/�剜</button>
<button class="button blue medium" id= "MoveDownSecond">��蝘餃</button>
<button class="button blue medium" id= "MoveUpSecond">��蝘餃</button>
<p>蝚砌�銝芸�瘥�</p>
<button class="button pink medium" id= "RotateThirdX">X�蓮</button>
<button class="button pink medium" id= "RotateThirdY">Y�蓮</button>
<button class="button pink medium" id= "RotateThirdZ">Z�蓮</button>
<button class="button pink medium" id= "ZoomInThird">�曉之</button>
<button class="button pink medium" id= "ZoomOutThird">蝻拙�</button>
<button class="button pink medium" id= "PauaeThird">��/�剜</button>
<button class="button pink medium"id= "MoveDownThird">��蝘餃</button>
<button class="button pink medium" id= "MoveUpThird">��蝘餃</button>
</body>
</html>