dbf-udg
annotate sdr/phong.p.glsl @ 8:f0a47f46ee45
lalala
| author | John Tsiombikas <nuclear@member.fsf.org> |
|---|---|
| date | Mon, 18 Feb 2013 06:53:44 +0200 |
| parents | 603656331514 |
| children | 1abbed71e9c9 |
| rev | line source |
|---|---|
| nuclear@7 | 1 varying vec3 normal, vpos; |
| nuclear@7 | 2 |
| nuclear@7 | 3 void main() |
| nuclear@7 | 4 { |
| nuclear@7 | 5 vec3 n = normalize(normal); |
| nuclear@7 | 6 vec3 v = -normalize(vpos); |
| nuclear@7 | 7 |
| nuclear@8 | 8 vec3 color = vec3(0.0, 0.0, 0.0); |
| nuclear@7 | 9 |
| nuclear@8 | 10 for(int i=0; i<2; i++) { |
| nuclear@8 | 11 vec3 l = normalize(gl_LightSource[i].position.xyz); |
| nuclear@8 | 12 vec3 h = normalize(v + l); |
| nuclear@8 | 13 |
| nuclear@8 | 14 float ndotl = max(dot(n, l), 0.0); |
| nuclear@8 | 15 float ndoth = max(dot(n, h), 0.0); |
| nuclear@8 | 16 float spec = pow(ndoth, gl_FrontMaterial.shininess); |
| nuclear@8 | 17 |
| nuclear@8 | 18 vec3 dcol = gl_FrontMaterial.diffuse.xyz * gl_LightSource[i].diffuse.xyz; |
| nuclear@8 | 19 vec3 scol = gl_FrontMaterial.specular.xyz * gl_LightSource[i].diffuse.xyz; |
| nuclear@8 | 20 |
| nuclear@8 | 21 color += dcol * ndotl + scol * spec; |
| nuclear@8 | 22 } |
| nuclear@7 | 23 |
| nuclear@7 | 24 vec3 acol = gl_FrontMaterial.ambient.xyz * gl_LightModel.ambient.xyz; |
| nuclear@7 | 25 |
| nuclear@8 | 26 gl_FragColor.xyz = acol + color; |
| nuclear@7 | 27 gl_FragColor.w = 1.0; |
| nuclear@7 | 28 } |