Computer graphics processing and selective visual display system – Computer graphics processing – Three-dimension
Reexamination Certificate
2007-01-30
2007-01-30
Jankus, Almis R. (Department: 2628)
Computer graphics processing and selective visual display system
Computer graphics processing
Three-dimension
C345S423000, C345S426000
Reexamination Certificate
active
10729874
ABSTRACT:
A rendering pipeline system for a computer environment uses screen space tiling (SST) to eliminate the memory bandwidth bottleneck due to frame buffer access and performs screen space tiling efficiently, while avoiding the breaking up of primitives. The system also reduces the buffering size required by SST. High quality, full-scene anti-aliasing is easily achieved because only the on-chip multi-sample memory corresponding to a single tile of the screen is needed. The invention uses a double-z scheme that decouples the scan conversion/depth-buffer processing from the more general rasterization and shading processing through a scan/z engine. The scan/z engine externally appears as a fragment generator but internally resolves visibility and allows the rest of the rendering pipeline to perform setup for only visible primitives and shade only visible fragments. The resulting reduced raster/shading requirements can lead to reduced hardware costs because one can process all parameters with generic parameter computing units instead of with dedicated parameter computing units. The invention processes both opaque and transparent geometries.
REFERENCES:
patent: 5886701 (1999-03-01), Chauvin et al.
Jankus Almis R.
NVIDIA Corporation
Townsend and Townsend / and Crew LLP
LandOfFree
Rendering pipeline does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Rendering pipeline, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Rendering pipeline will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3823742