Hardware Subdivision and Tessellation of Catmull-Clark Surfaces

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[numthreads(8, 4, 1)] void VertexPoint(uint3 blockIdx : SV_GroupID, uint3 DTid : SV_DispatchThreadID, uint3 threadIdx : SV_GroupThreadID, uint GI : SV_GroupIndex) { int VertexIdx = 8 * blockIdx.x + threadIdx.x; } if (VertexIdx < V0){ int h = V0_ITa[2*VertexIdx]; int n = V0_ITa[2*VertexIdx+1]; } Vertex Kernel float q = 0.0f; for (int j=0; j
Tessellator Pipeline Stage
Page 1 and 2: Hardware Subdivision and Tessellati
Page 3 and 4: Input Assembler Vertex Shader Hull
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 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: Thanks!

Hardware Subdivision and Tessellation of Catmull-Clark Surfaces

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