Computer graphics processing and selective visual display system – Computer graphics display memory system – Memory partitioning
Reexamination Certificate
2005-08-30
2005-08-30
Tung, Kee M. (Department: 2676)
Computer graphics processing and selective visual display system
Computer graphics display memory system
Memory partitioning
C345S421000, C345S545000, C345S563000, C345S556000
Reexamination Certificate
active
06937244
ABSTRACT:
A system and method for rendering a graphics primitive. A two pass method is employed where, in the first pass, for each block affected by the primitive, whether the pixels of the affected block intersect the front and/or back layers of the block is determined. If there are intersected pixels in the block, a flag is set indicating that the z-buffer must be read to determine the visibility of the affected pixels in the block. On a second pass, the blocks affected by the graphics primitive are again examined. If the flag is not set, then the visible pixels are rendered to the frame buffer based on the front and back layers of the block. If the flag is set, then for each sub-block affected by the primitive, the z-buffer is read and the visible pixels are rendered to the frame buffer based on the reading of the z-buffer.
REFERENCES:
patent: 6348919 (2002-02-01), Murphy
patent: 6473082 (2002-10-01), Hong et al.
patent: 6774895 (2004-08-01), Papakipos et al.
Dechert LLP
Diepenbrock III Anthony B.
Tung Kee M.
LandOfFree
Apparatus and method for reducing the memory traffic of a... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Apparatus and method for reducing the memory traffic of a..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Apparatus and method for reducing the memory traffic of a... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3480450