Offloading cube map calculations to a shader

Details Offloading cube map calculations to a shader Offloading cube map calculations to a shader

2006-10-19

2010-12-28

Caschera, Antonio A (Department: 2628)

Computer graphics processing and selective visual display system

Computer graphics processing

Attributes

C345S426000, C345S506000

Reexamination Certificate

active

07859548

ABSTRACT:
Systems and methods for performing cube mapping computations using a shader program may reduce the need for fixed function cube mapping computation units in graphics processors. Therefore, die area is used more efficiently since a general purpose processing unit may be configured using shader program instructions to perform the cube mapping computations and other computations. The general purpose processing unit is configured to perform floating point computations to identify the cube map face that will be read and process the cube map coordinates. A fixed function unit is also configured to identify the cube map face that will be read to avoid passing the cube map face information from the general purpose processing unit to the fixed function unit.

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