Computer graphics processing and selective visual display system – Computer graphic processing system
Reexamination Certificate
2004-09-02
2008-03-04
Wang, Jin-Cheng (Department: 2628)
Computer graphics processing and selective visual display system
Computer graphic processing system
C345S552000, C345S557000
Reexamination Certificate
active
07339590
ABSTRACT:
A graphics processing subsystem includes a vertex processing unit that allows vertex shader programs to arbitrarily access data stored in vertex texture maps. The vertex processing unit includes a vertex texture fetch unit and vertex processing engines. The vertex processing engines operate in parallel to execute vertex shader programs that specify operations to be performed on vertices. In response to a vertex texture load instruction, a vertex processing engine dispatches a vertex texture request to the vertex texture fetch unit. The vertex texture fetch unit retrieves the corresponding vertex texture map data. While the vertex texture fetch unit is processing a vertex texture request, the requesting vertex processing engine is adapted to evaluate whether instructions that follow the vertex texture load instruction are dependent on the vertex texture map data, and if the instructions are not dependent on the vertex texture map data, to execute the additional instructions.
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Bowen Andrew D.
Moskal Jeffrey B.
Nebeker Jakob
Tannenbaum David C.
NVIDIA Corporation
Townsend and Townsend / and Crew LLP
Wang Jin-Cheng
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