| Brian Paul | ce00d23 | 2008-08-16 09:34:12 -0600 | [diff] [blame^] | 1 | |
| 2 | const int KernelSize = 9; |
| 3 | |
| 4 | //texture offsets |
| 5 | uniform vec2 Offset[KernelSize]; |
| 6 | //convolution kernel |
| 7 | uniform vec4 KernelValue[KernelSize]; |
| 8 | uniform sampler2D srcTex; |
| 9 | uniform vec4 ScaleFactor; |
| 10 | uniform vec4 BaseColor; |
| 11 | |
| 12 | void main(void) |
| 13 | { |
| 14 | int i; |
| 15 | vec4 sum = vec4(0.0); |
| 16 | for (i = 0; i < KernelSize; ++i) { |
| 17 | vec4 tmp = texture2D(srcTex, gl_TexCoord[0].st + Offset[i]); |
| 18 | sum += tmp * KernelValue[i]; |
| 19 | } |
| 20 | gl_FragColor = sum * ScaleFactor + BaseColor; |
| 21 | } |