+ GL20TU_CUBEPROJECTION = 12,
+ // orthographic-projection shadowmapping, reuses prepass screenspace depth, so must fix later if the two could ever coexist during final deferred lighting pass
+ GL20TU_SHADOWMAPORTHORECT = 13,
+ GL20TU_SHADOWMAPORTHO2D = 13,
+ // rtlight prepass data (screenspace depth and normalmap)
+ GL20TU_SCREENDEPTH = 13,
+ GL20TU_SCREENNORMALMAP = 14,
+ // lightmap prepass data (screenspace diffuse and specular from lights)
+ GL20TU_SCREENDIFFUSE = 11,
+ GL20TU_SCREENSPECULAR = 12,
+ // fake reflections
+ GL20TU_REFLECTMASK = 14,
+ GL20TU_REFLECTCUBE = 15