dungeon_crawler
annotate prototype/sdr/post.p.glsl @ 77:d89b403f630b
added gamma correction (without dialing the lighting down yet)
fixed the incorrect PointLight sphere radius
| author | John Tsiombikas <nuclear@member.fsf.org> |
|---|---|
| date | Fri, 26 Oct 2012 03:03:52 +0300 |
| parents | f379c00eb07f |
| children | 12a1dcfe91fa |
| rev | line source |
|---|---|
| nuclear@65 | 1 uniform sampler2D fbtex; |
| nuclear@72 | 2 uniform sampler3D paltex; |
| nuclear@65 | 3 |
| nuclear@65 | 4 void main() |
| nuclear@65 | 5 { |
| nuclear@72 | 6 // lookup the render output color for this pixel |
| nuclear@77 | 7 vec4 fbcolor = texture2D(fbtex, gl_TexCoord[0].st); |
| nuclear@77 | 8 vec3 tc = (fbcolor.xyz * 15.0 + 0.5) / 16.0; |
| nuclear@72 | 9 // use that color as an index into the palette |
| nuclear@77 | 10 vec3 color = texture3D(paltex, tc).xyz; |
| nuclear@77 | 11 // gamma-correction |
| nuclear@77 | 12 gl_FragColor = vec4(pow(color, 1.0 / 2.2), fbcolor.a); |
| nuclear@65 | 13 } |