nuclear@65: uniform sampler2D fbtex;
nuclear@72: uniform sampler3D paltex;
nuclear@65: 
nuclear@65: void main()
nuclear@65: {
nuclear@72: 	// lookup the render output color for this pixel
nuclear@72: 	vec4 color = texture2D(fbtex, gl_TexCoord[0].st);
nuclear@72: 	// use that color as an index into the palette
nuclear@72: 	gl_FragColor = vec4(texture3D(paltex, color.xyz).xyz, color.a);
nuclear@65: }