Over-evaluating samples during rasterization for improved...

Computer graphics processing and selective visual display system – Computer graphics processing – Graphic manipulation

Reexamination Certificate

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Details

C345S629000

Reexamination Certificate

active

06924820

ABSTRACT:
A system and method for rasterizing and rendering graphics data is disclosed. Vertices may be grouped to form primitives such as triangles, which are rasterized using two-dimensional arrays of samples bins. To overcome fragmentation problems, the system's sample evaluation hardware may be configured to over-evaluate samples each clock cycle. Since a number of the samples will typically not survive evaluation because they will be outside the primitive being rendered, the remaining surviving samples may be combined into sets, with one set being forwarded to subsequent pipeline stages each clock cycle in order to attempt to keep the pipeline utilization high.

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patent: 2002/0196251 (2002-12-01), Duluk et al.
patent: 2003/0122815 (2003-07-01), Deering
patent: 2003/0137514 (2003-07-01), Nelson

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