progs/vpglsl/varfor2f.glsl

   1 const int KernelSize = 9;
   2 uniform vec2 KernelValue2f[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         vec2 rg, ba;
  13
  14         rg = KernelValue2f[i];
  15         ++i;
  16         if (i < KernelSize)
  17             ba = KernelValue2f[i];
  18         else
  19             ba = vec2(0, 0);
  20
  21         sum += tmp * vec4(rg, ba);
  22     }
  23     gl_FrontColor = sum;
  24 }