Computer graphics processing and selective visual display system – Computer graphics processing – Three-dimension
Reexamination Certificate
2005-08-02
2005-08-02
Wong, Don (Department: 2821)
Computer graphics processing and selective visual display system
Computer graphics processing
Three-dimension
Reexamination Certificate
active
06924801
ABSTRACT:
A method and apparatus for early occlusion culling are provided. For the method of the present invention, a host processor establishes a coarse Z-buffer. The coarse Z-buffer is divided into a series of tiles. Each tile has an associated depth value. The depth values are updated using information fed back from the Z-buffer. The host processor uses the depth values to selectively discard occluded objects before they are rendered.
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Microsoft Corporation
Woodcock & Washburn LLP
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