Computer graphics processing and selective visual display system – Computer graphics processing – Three-dimension
Reexamination Certificate
2006-04-04
2006-04-04
Nguyen, Phu K. (Department: 2673)
Computer graphics processing and selective visual display system
Computer graphics processing
Three-dimension
C345S419000
Reexamination Certificate
active
07023437
ABSTRACT:
A system and method are provided for accelerating graphics processing utilizing multiple-pass rendering. Initially, geometry operations are performed on graphics data, and the graphics data is stored in memory. During a first rendering pass, various operations take place. For example, the graphics data is read from the memory, and the graphics data is rasterized. Moreover, first z-culling operations are performed utilizing the graphics data. Such first z-culling operations maintain a first occlusion image. During a second rendering pass, the graphics data is read from memory. Still yet, the graphics data is rasterized and second z-culling operations are performed utilizing the graphics data and the first occlusion image. Moreover, visibility operations are performed utilizing the graphics data and a second occlusion image. Raster-processor operations are also performed utilizing the graphics data, during the second rendering pass.
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Greene Edward C.
Kilgariff Emmett M.
Tzvetkov Svetoslav
Voorhies Douglas A.
Nguyen Phu K.
NVIDIA Corporation
Zilka-Kotab, PC
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