Dogcows Code - chaz/rasterize/blob - vertex.glsl

   1
   2 /*
   3  * CS5600 University of Utah
   4  * Charles McGarvey
   5  * mcgarvey@eng.utah.edu
   6  */
   7
   8 #define MAX_LIGHTS 2
   9
  10 attribute vec4  vPosition;
  11 attribute vec3  vNormal;
  12 attribute vec2  vTextureCoord;
  13 attribute vec4  vColor;
  14
  15 uniform mat4    view;
  16 uniform mat4    model;
  17 uniform mat4    projection;
  18 uniform int     numLights;
  19 uniform vec3    eye;
  20 uniform vec4    light[MAX_LIGHTS];
  21
  22 varying vec3    normal;
  23 varying vec2    textureCoord;
  24 varying vec4    color;
  25 varying vec3    lightDir[MAX_LIGHTS];
  26 varying vec3    eyeVec;
  27
  28 void main()
  29 {
  30     gl_Position = projection * view * model * vPosition;
  31     normal = vec3(model * vec4(vNormal, 0.0));
  32     textureCoord = vTextureCoord;
  33     color = vColor;
  34
  35     vec4 pos = model * vPosition;
  36     eyeVec = eye - pos.xyz;
  37
  38     int i;
  39     for (i = 0; i < numLights; ++i) {
  40         lightDir[i] = light[i].xyz - pos.xyz;
  41     }
  42 }
  43