Perspective correction computation optimization

Details Perspective correction computation optimization Perspective correction computation optimization

2008-01-29

2008-01-29

Chauhan, Ulka (Department: 2628)

Computer graphics processing and selective visual display system

Computer graphic processing system

Graphic command processing

C345S582000

Reexamination Certificate

active

11076200

ABSTRACT:
A method of optimizing perspective correction computations to be executed in a programmable fragment shader, identifying a sequence of program instructions; determining whether the sequence of program instructions can be optimized based on the status of the bit; sourcing one or more interpolated texture map coordinates to thereby disable the perspective correction computation comprising division by (1/w); and enabling the optimized execution of one of a plurality of perspective computation functions by a sought operation in a shader unit without division of the interpolated texture maps coordinates by (1/w). The optimized function includes able mapping, projective mapping, normalization, or scaling invariant operations.

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