System, method and article of manufacture for Z-value and...

Details System, method and article of manufacture for Z-value and... System, method and article of manufacture for Z-value and...

2006-06-27

2006-06-27

Vo, Cliff N. (Department: 2671)

Computer graphics processing and selective visual display system

Computer graphics processing

Three-dimension

Reexamination Certificate

active

07068272

ABSTRACT:
A system, method and article of manufacture are provided for early Z-value based culling prior to pixel rendering in a graphics pipeline. In initial stages of processing, Z-value culling is performed on at least one pixel. Thereafter, the pixel is conditionally rendered. Whether the pixel is rendered or not is conditioned on results of the Z-value culling. By culling, or removing, the pixels that do not meet certain criteria prior to rendering, much processing is avoided in the rendering portion of the graphics pipeline.

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