cube.dae

<?xml version="1.0" encoding="UTF-8"?>
<COLLADA xmlns="http://www.collada.org/2005/11/COLLADASchema" version="1.4.1">

<!--
   This file describes a scene with a single cube.

   The vertex, normal, and uv data arrays are all the same length so that
   they can be indexed simultaneously.

   Here is a rough outline of its structure:

   effect "effectColor"
     lambert
       diffuse 0.5 0.5 0.5 1.0
   
   material "matColor"
     instance_effect "effectColor"
   
   geometry "cubeGeometry"
     mesh
       source "cubeVerticesSource"
         float_array "cubeVerticesData": 24x (x,y,z) = 72
       source "cubeNormalsSource"
         float_array "cubeNormalsData": 24x (x,y,z) = 72
       source "cubeTextureUVsSource"
         float_array "cubeTextureUVsData": 24x (u,v) = 48
       vertices "cubeVertices"
         input POSITION "cubeVerticesSource"
       triangles
         material "cubeTexture"
         input VERTEX "cubeVertices"
         input NORMAL "cubeNormalsSource"
         input TEXCOORD "cubeTextureUVsSource"
         36 (shared) indices

   scene "cubeScene"
     node "cube"
       geometry "cubeGeometry"
       bind_material "cubeTexture" -> "matColor"

 -->
<asset>
 <contributor>
  <authoring_tool>Text editor</authoring_tool>
 </contributor>
 <unit meter="1.000000"/>
 <up_axis>Z_UP</up_axis>
</asset>

<library_effects>
 <effect id="effectColor">
  <profile_COMMON>
   <technique sid="common">
    <lambert>
     <diffuse>
      <color>0.5 0.5 0.5 1</color>
     </diffuse>
    </lambert>
   </technique>
  </profile_COMMON>
 </effect>
</library_effects>

<library_materials>
 <material id="matColor" name="MatColor">
  <instance_effect url="#effectColor"/>
 </material>
</library_materials>

<library_geometries>
 <geometry id="cubeGeometry" name="CubeGeometry">
  <mesh>

   <!--
    Vertices:                        Faces:
         f- - - -g                          +- - - -+ 
        /.      /|                         /.  5   /|  3 back
       / .     / |                        / .     / |
      e- - - -h  |                   2   +- - - -+ 1|
      |  b . .|. c      z          right |  . . .|. +
      | .     | /       | /y             | . 4   | /
      |.      |/        |/               |.      |/
      a- - - -d         + - - x          +- - - -+
                                              6
                                           bottom
    -->

   <!--
    Vertex data:
    
    8 vertices
     * 3 copies of each vertex (one for each face it is part of because
         this needs to be kept in sync with normal and texture arrays)
    = 24 vertices
     
     * 3 values (x,y,z) for each vertex
    = 72 values
    -->
   <source id="cubeVerticesSource">
    <float_array id="cubeVerticesData" count="72">
     0 0 0  <!-- 0 a (faces: 2,4,6) -->
     0 0 0
     0 0 0
     0 1 0  <!-- 3 b (faces: 2,3,6) -->
     0 1 0
     0 1 0
     1 1 0  <!-- 6 c (faces: 1,3,6) -->
     1 1 0
     1 1 0
     1 0 0  <!-- 9 d (faces: 1,4,6) -->
     1 0 0
     1 0 0
     0 0 1  <!-- 12 e (faces: 2,4,5) -->
     0 0 1
     0 0 1
     0 1 1  <!-- 15 f (faces: 2,3,5) -->
     0 1 1
     0 1 1
     1 1 1  <!-- 18 g (faces: 1,3,5) -->
     1 1 1
     1 1 1
     1 0 1  <!-- 21 h (faces: 1,4,5) -->
     1 0 1
     1 0 1
    </float_array>
    <technique_common>
     <accessor source="#cubeVerticesData" count="24" stride="3">
      <param name="X" type="float"/>
      <param name="Y" type="float"/>
      <param name="Z" type="float"/>
     </accessor>
    </technique_common>
   </source>

   <!--
    Normal data: Must correspond 1-for-1 with Vertex data.
    -->
   <source id="cubeNormalsSource">
    <float_array id="cubeNormalsData" count="72">
     -1  0  0  <!-- 0 a (faces: 2,4,6) -->
      0 -1  0
      0  0 -1
     -1  0  0  <!-- 3 b (faces: 2,3,6) -->
      0  1  0
      0  0 -1
      1  0  0  <!-- 6 c (faces: 1,3,6) -->
      0  1  0
      0  0 -1
      1  0  0  <!-- 9 d (faces: 1,4,6) -->
      0 -1  0
      0  0 -1
     -1  0  0  <!-- 12 e (faces: 2,4,5) -->
      0 -1  0
      0  0  1
     -1  0  0  <!-- 15 f (faces: 2,3,5) -->
      0  1  0
      0  0  1
      1  0  0  <!-- 18 g (faces: 1,3,5) -->
      0  1  0
      0  0  1
      1  0  0  <!-- 21 h (faces: 1,4,5) -->
      0 -1  0
      0  0  1
    </float_array>
    <technique_common>
     <accessor source="#cubeNormalsData" count="24" stride="3">
      <param name="nX" type="float"/>
      <param name="nY" type="float"/>
      <param name="nZ" type="float"/>
     </accessor>
    </technique_common>
   </source>

   <vertices id="cubeVertices">
    <input semantic="POSITION" source="#cubeVerticesSource"/>
   </vertices>

   <!--
      3- - - -2
      | -     |
      |   #   |  Each face = 2 triangles (ccw)
      |     - |            = 1-2-3 + 1-3-4
      4- - - -1

    Each index in the triangles array in an index into each of the
    3 arrays (vertex, normal, uv).
    The same index is used for each array because offset="0"
    -->
    
   <triangles count="12" material="cubeColor">
    <input semantic="VERTEX" offset="0" source="#cubeVertices"/>
    <input semantic="NORMAL" offset="0" source="#cubeNormalsSource"/>
    <p>
     <!-- Face 1: cghd = cgh + chd -->
     6 18 21
     6 21 9
     <!-- Face 2: aefb = aef + afb -->
     0 12 15
     0 15 3
     <!-- Face 3: gcbf = gcb + gbf -->
     19 7 4
     19 4 16
     <!-- Face 4: dhea = dhe + dea -->
     10 22 13
     10 13 1
     <!-- Face 5: hgfe = hgf + hfe -->
     23 20 17
     23 17 14
     <!-- Face 6: cdab = cda + cab -->
     8 11 2
     8 2 5
    </p>
   </triangles>

  </mesh>
 </geometry>
</library_geometries>

<library_visual_scenes>
 <visual_scene id="cubeScene">
  <node id="cube" name="Cube">
   <instance_geometry url="#cubeGeometry">
    <bind_material>
     <technique_common>
      <instance_material symbol="cubeColor" target="#matColor"/>
     </technique_common>
    </bind_material>
   </instance_geometry>
  </node>
 </visual_scene>
</library_visual_scenes>

<scene>
 <instance_visual_scene url="#cubeScene"/>
</scene>

</COLLADA>