GPU Implementation Overview
•DirectX 9.0c – support for Shader Model 3.0
•HLSL code available on book’s CD
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•Store data as textures (in video memory)
–Elevation data – 32-bit 1-channel texture
–Residual data – 32-bit 1-channel texture
–Normal data – 8-bit 4-channel texture
•Update parts of texture that change
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