Position-only shading pipeline

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United States of America Patent

PATENT NO 9824412
SERIAL NO

14494653

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Abstract

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In position-only shading, two geometry pipes exist, a trimmed down version called the Cull Pipe and a full version called the Replay Pipe. Thus, the Cull Pipe executes the position shaders in parallel with the main application, but typically generates the critical results much faster as it fetches and shades only the position attribute of the vertices and avoids the rasterization as well as the rendering of pixels for the frame buffer. Furthermore, the Cull Pipe uses these critical results to compute visibility information for all the triangles whether they are culled or not. On the other hand, the Replay Pipe consumes the visibility information to skip the culled triangles and shades only the visible triangles that are finally passed to the rasterization phase. Together the two pipes can hide the long cull runs of discarded triangles and can complete the work faster in some embodiments.

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Patent Owner(s)

  • INTEL CORPORATION

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Akenine-Moller, Tomas G Lund, SE 112 849
Bhiravabhatla, Kalyan K Bangalore, IN 9 61
Doyle, Peter L El Dorado Hills, US 68 672
Farrell, Robert L Granite Bay, US 30 812
Hasselgren, Jon N Bunkeflostrand, SE 69 501
Johnson, Paul A Folsom, US 71 1435
Maiyuran, Subramaniam Gold River, US 256 1751
Munkberg, Carl J Malmo, SE 48 447
Piazza, Thomas A Granite Bay, US 71 1120
Poddar, Bimal El Dorado Hills, US 26 181
Rogovin, Kevin Tammisaari, FI 1 34
Sharma, Saurabh El Dorado Hills, US 56 147
Syrja, Harri Klaukkala, FI 1 34

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