progs/vpglsl/varfor4f.glsl

   1 const int KernelSize = 4;
   2 uniform vec4 KernelValue4f[KernelSize];
   3
   4 void main(void)
   5 {
   6     int i;
   7     vec4 sum = vec4(0.0);
   8     vec4 tmp = gl_Color;
   9     gl_Position = gl_Vertex;
  10
  11     for (i = 0; i < KernelSize; ++i) {
  12         vec4 rgba;
  13
  14         rgba = KernelValue4f[i];
  15
  16         sum += tmp * rgba;
  17     }
  18     gl_FrontColor = sum;
  19 }