qvolray
annotate sdr/demo.p.glsl @ 21:4c62be57fc1a
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| author | John Tsiombikas <nuclear@member.fsf.org> |
|---|---|
| date | Wed, 11 Apr 2012 16:59:45 +0300 |
| parents | 784d3d321caa |
| children | 2d0dfb5751dc |
| rev | line source |
|---|---|
| nuclear@18 | 1 void main() |
| nuclear@18 | 2 { |
| nuclear@21 | 3 vec3 pos = gl_TexCoord[0].xyz * 2.0 - 1.0; |
| nuclear@18 | 4 |
| nuclear@21 | 5 float len = length(pos); |
| nuclear@21 | 6 float val = 0.2 / (len * len); |
| nuclear@21 | 7 |
| nuclear@21 | 8 gl_FragColor = vec4(-pos / len, val); |
| nuclear@18 | 9 } |