metasurf
diff examples/volume/sdr/frag.glsl @ 3:52664d3451ad
added volume rendering example
author | John Tsiombikas <nuclear@member.fsf.org> |
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date | Tue, 25 Oct 2011 13:30:03 +0300 |
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1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000 1.2 +++ b/examples/volume/sdr/frag.glsl Tue Oct 25 13:30:03 2011 +0300 1.3 @@ -0,0 +1,19 @@ 1.4 +varying vec3 vpos, ldir, norm; 1.5 + 1.6 +void main() 1.7 +{ 1.8 + vec3 n = normalize(norm); 1.9 + vec3 l = normalize(ldir); 1.10 + vec3 v = -normalize(vpos); 1.11 + vec3 h = normalize(v + l); 1.12 + 1.13 + const vec3 kd = vec3(0.87, 0.82, 0.74); 1.14 + 1.15 + float diff = abs(dot(n, l)); 1.16 + float spec = pow(abs(dot(n, h)), 60.0); 1.17 + 1.18 + vec3 dcol = kd * diff; 1.19 + vec3 scol = vec3(0.8, 0.8, 0.8) * spec; 1.20 + 1.21 + gl_FragColor = vec4(dcol + scol, 1.0); 1.22 +}