progs/glsl/cubemap.frag

   1 // Fragment shader for cube-texture reflection mapping
   2 // Brian Paul
   3
   4
   5 uniform samplerCube cubeTex;
   6 varying vec3 normal;
   7 uniform vec3 lightPos;
   8
   9 void main()
  10 {
  11    // simple diffuse, specular lighting:
  12    vec3 lp = normalize(lightPos);
  13    float dp = dot(lp, normalize(normal));
  14    float spec = pow(dp, 5.0);
  15
  16    // final color:
  17    gl_FragColor = dp * textureCube(cubeTex, gl_TexCoord[0].xyz, 0.0) + spec;
  18 }