Computer graphics processing and selective visual display system – Computer graphics display memory system – For storing compressed data
Reexamination Certificate
2007-10-02
2007-10-02
Chauhan, Ulka (Department: 2628)
Computer graphics processing and selective visual display system
Computer graphics display memory system
For storing compressed data
C345S426000, C345S544000
Reexamination Certificate
active
10924068
ABSTRACT:
The computer graphics system is configured to improve the performance of a stencil shadow volume method for rendering shadows. The apparatus and methods utilize a combination of compressed and uncompressed stencil buffers in coordination with compressed and uncompressed depth data buffers. An uncompressed stencil buffer is capable of storing stencil shadow volume data for each pixel and a compressed stencil buffer is capable of storing stencil shadow volume data for a group of pixels. The compressed stencil buffer is utilized with a compressed stencil buffer cache to perform a stencil shadow volume operation more efficiently than present methods.
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Chinese Language Office Action, mailed August 25, 2006.
Brothers John
Chen Wen-Chung
Li Liang
Prokopenko Boris
Wang Yuanfeng
Chauhan Ulka
Hsu Joni
VIA Technologies Inc.
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