Computer graphics processing and selective visual display system – Computer graphics processing – Attributes
Reexamination Certificate
2011-01-11
2011-01-11
Caschera, Antonio A (Department: 2628)
Computer graphics processing and selective visual display system
Computer graphics processing
Attributes
C345S422000, C345S605000, C345S613000, C345S614000, C345S639000, C382S166000, C382S268000, C382S269000, C382S275000
Reexamination Certificate
active
07868901
ABSTRACT:
Embodiments of the present invention sets forth a method and system for reducing memory bandwidth requirements for an anti-aliasing operation. The first virtual coverage information for a pixel involved in an anti-aliasing operation is maintained in memory. If a certain operating condition of the anti-aliasing operation deterministically implies the second virtual coverage information for this pixel, the second virtual coverage information, as opposed to the first virtual coverage information, is used in the anti-aliasing operation. In such situations, since the virtual coverage information is implied, it does not have to be accessed from memory, thereby improving overall system performance.
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Edmondson John H.
Holmqvist Peter B.
King Gary C.
Molnar Steven E.
O'Connor James M.
Caschera Antonio A
Nvidia Corporation
Patterson & Sheridan LLP
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