Spread-compensated anisotropic texture sampling

Details Spread-compensated anisotropic texture sampling Spread-compensated anisotropic texture sampling

2007-09-18

2007-09-18

Zimmerman, Mark (Department: 2628)

Computer graphics processing and selective visual display system

Computer graphics processing

Attributes

Reexamination Certificate

active

11069666

ABSTRACT:
Systems and methods for determining the number of texture samples used to produce an anisotropically filtered texture mapped pixel may improve texture mapping performance or image quality. The number of texture samples may be increased or decreased based on texture state variables that may be specific to each texture map. Furthermore, the texture samples may be positioned along an axis of anisotropy to approximate an elliptical footprint, ensuring that the texture samples span the entire axis of anisotropy. A graphics driver may load the texture state variables and configure a system to modify the number of texture samples and/or position the texture samples used to produce the anisotropically filtered texture mapped pixel.

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