Examples/CSM/Shader/OldSHLSimple/scene.osg

   1 #OSG V1.0
   2
   3 Node
   4 {
   5   core MaterialGroup
   6   {
   7     material ChunkMaterial
   8     {
   9       chunks
  10       [
  11         SHLChunk
  12         {
  13           parameters
  14           [
  15             ShaderParameterReal
  16             {
  17               name "ColR"
  18               value 1.0
  19             }
  20             ShaderParameterReal
  21             {
  22               name "ColG"
  23               value 0.6
  24             }
  25             ShaderParameterReal
  26             {
  27               name "ColB"
  28               value 0.6
  29             }
  30             ShaderParameterReal
  31             {
  32               name "ColB"
  33               value 0.0
  34             }
  35           ]
  36
  37
  38           vertexProgram "
  39
  40             varying float Diffuse;
  41
  42             void main(void)
  43             {
  44               // calculate vertex position in eye coordinates
  45               vec4 ecPosition = -normalize(gl_ModelViewMatrix * gl_Vertex);
  46
  47               // compute the transformed normal
  48               vec3 tnorm      = normalize(gl_NormalMatrix * gl_Normal);
  49
  50               // Calculate a diffuse light intensity
  51               Diffuse             = dot(ecPosition.xyz,
  52                                             tnorm     );
  53
  54               // output final vertex information
  55               gl_Position     = gl_ModelViewProjectionMatrix * gl_Vertex;
  56             }
  57           "
  58
  59           fragmentProgram "
  60             varying float Diffuse;
  61             uniform float ColR;
  62             uniform float ColG;
  63             uniform float ColB;
  64
  65             void main (void)
  66             {
  67               gl_FragColor = vec4(ColR * Diffuse,
  68                                   ColG * Diffuse,
  69                                   ColB * Diffuse,
  70                                   1.);
  71             }
  72           "
  73         }
  74       ]
  75     }
  76   }
  77
  78   children
  79   [
  80     Node
  81     {
  82       core Inline
  83       {
  84         url "../../SimpleTeapot/object.wrl"
  85       }
  86     }
  87   ]
  88 }
  89