tavli
view sdr/phong-notex.p.glsl @ 15:b1a195c3ee16
added shaders
| author | John Tsiombikas <nuclear@member.fsf.org> |
|---|---|
| date | Sun, 28 Jun 2015 08:34:24 +0300 |
| parents | |
| children |
line source
1 /* vi: set ft=glsl */
2 varying vec3 vdir, ldir, normal;
4 #define KD gl_FrontMaterial.diffuse.rgb
5 #define KS gl_FrontMaterial.specular.rgb
6 #define SPOW gl_FrontMaterial.shininess
8 void main()
9 {
10 vec3 n = normalize(normal);
11 vec3 v = normalize(vdir);
12 vec3 l = normalize(ldir);
13 vec3 h = normalize(l + v);
15 float ndotl = max(dot(n, l), 0.0);
16 float ndoth = max(dot(n, h), 0.0);
18 vec3 diffuse = KD * gl_LightSource[0].diffuse.rgb * ndotl;
19 vec3 specular = KS * gl_LightSource[0].specular.rgb * pow(ndoth, SPOW);
21 vec3 ambient = gl_LightModel.ambient.rgb * KD;
22 gl_FragColor.rgb = ambient + diffuse + specular;
23 gl_FragColor.a = gl_FrontMaterial.diffuse.a;
24 }