Computer graphics processing and selective visual display system – Computer graphics processing – Three-dimension
Reexamination Certificate
2006-04-18
2006-04-18
Tung, Kee M. (Department: 2671)
Computer graphics processing and selective visual display system
Computer graphics processing
Three-dimension
C345S536000, C345S555000
Reexamination Certificate
active
07030878
ABSTRACT:
The computer graphics system is configured to generate a shadow effect with a stencil shadow volume method using 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.
REFERENCES:
patent: 6252608 (2001-06-01), Snyder et al.
patent: 6384822 (2002-05-01), Bilodeau et al.
patent: 6557083 (2003-04-01), Sperber et al.
patent: 6798421 (2004-09-01), Baldwin
patent: 2004/0169651 (2004-09-01), Everitt et al.
“Real-Time Shadow Generation Using BSP Trees and Stencil Buffers” Batagelo et al.
“Stencil Shadow Volumes” Dahlbom; Spring 2002.
“Practical and Robust Stenciled Shadow Volumes for Hardware-Accelerated Rendering” Everitt et al.; 2002.
“Shadow Volumes on Programmable Graphics Hardware” Brabec et al.; 2003.
Brothers John
Chen Wen-Chung
Li Liang
Prokopenko Boris
Wang Yuanfeng
Hsu J.
Thomas Kayden Horstemeyer & Risley
Tung Kee M.
VIA Technologies Inc.
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