Hardware Subdivision and Tessellation of Catmull-Clark Surfaces

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• DirectX 11 Pipeline • Subdivision Surfaces Outline • Gregory Patch Approximation • GPU Subdivision
Input Assembler Vertex Shader Hull Shader Tessellator Domain Shader Geometry Shader Rasterizer Pixel Shader Output Merger DirectX 11 Pipeline Data Compute Shader
Page 1: Hardware Subdivision and Tessellati
Page 5 and 6: Hardware Tessellation Pipeline •
Page 7 and 8: Tessellator (TS) • Fixed function
Page 9: Left = 3.5 Right = 4.4 Bottom = 3.0
Page 12 and 13: Subdivision Surfaces
Page 14: Problem: Infinite number of patches
Page 17: Approximate Subdivision Surfaces Lo
Page 23: Patch Construction Gregory patches
Page 34: Implementation Two Approaches
Page 37 and 38: Two GPU Approaches • Vertex/Hull
Page 39 and 40: More Results
Page 41 and 42: Hybrid SubD/Tess Data Flow Mesh Dat
Page 43: Data-Parallel Subdivision
Page 46 and 47: [numthreads(8, 4, 1)] void FacePoin
Page 48 and 49: [numthreads(8, 4, 1)] void VertexPo
Page 52 and 53:
Domain Shader float u[4], du[4]; fl
Page 60 and 61:
Results
Page 62 and 63:
frames per second 1200 1000 800 600
Page 64 and 65:
frames per second 1200 1000 800 600
Page 66:
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Hardware Subdivision and Tessellation of Catmull-Clark Surfaces

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