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Geometry Shaders

Geometry Shaders. Outline. DirectX 10 Pipeline Overview. DirectX10 & Pipeline. What it does. More than one input vertex 1 in, 1 out rule no longer applies. Many out Stream Out. Can write data to a separate buffer and then process that buffer recursively

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Geometry Shaders

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  1. Geometry Shaders

  2. Outline • DirectX 10 • Pipeline • Overview

  3. DirectX10 & Pipeline

  4. What it does • More than one input vertex • 1 in, 1 out rule no longer applies. Many out • Stream Out. Can write data to a separate buffer and then process that buffer recursively • Can drive scene rendering without CPU interference.

  5. Video Cards • Nvidia supports DX10 and OpenGL (no official GLSL release yet) • ATI supports DX10 • Tesselation? • http://ati.amd.com/products/Radeonhd/demos/Tessellation.html

  6. Performance • Should be really fast • Word on the street is “slow but we don’t know why” • Drivers? • Hardware?

  7. Other Cool Stuff • ATI’s tesselation • Catmull-Clark subdivision

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