Precomputed Radiance Transfer (PRT) is quite interesting visually. It's used in 3D graphics to soften shadows, determine subsurface scattering and more. The new DirectX9 SDK October Update contains a PRT with Vertex Shader (VS) 1.1 sample that shows off it's power. A great thing about PRT is that is precomputed on a simluation beforehand and compressed. Runtime performance is negliagable.
Tuesday, October 12, 2004
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