Rendering
System Design
Update
-Use (x, y) to lookup z value in elevation texture
-Compute α
- Blend Geometry
- Blend normals
- Does the shading
- Texture lookup
Vertex Shader
Pixel Shader
•Upsample coarser level elevation texture
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•Add residuals
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•Update normal map texture
Vertex Textures
Supported in DirectX 9.0c & Shader Model 3.0 on NVIDIA
GeForce 6800