Trilinear optimization for texture filtering

Details Trilinear optimization for texture filtering Trilinear optimization for texture filtering

2007-03-20

2007-03-20

Luu, Matthew (Department: 3663)

Computer graphics processing and selective visual display system

Computer graphics processing

Adjusting level of detail

C345S582000, C345S587000

Reexamination Certificate

active

11294840

ABSTRACT:
Trilinear optimization is a technique to reduce the number of texture samples used to determine a texture value associated with a graphics fragment. Bilinear interpolations replace some trilinear interpolations, thereby reducing the number of texture samples read and simplifying the filter computation. A programmable trilinear slope is used to control replacement of a trilinear computation with a bilinear computation, permitting a user to determine a balance between improved texture map performance and texture filtering quality.

REFERENCES:
patent: 6184894 (2001-02-01), Rosman et al.
patent: 6452603 (2002-09-01), Dignam
patent: 6756989 (2004-06-01), Morgan, III et al.
Lance Williams, “Pyramidal Parametrics” Computer Graphics (SIGGRAPH 1983 Proceedings) vol. 17, No. 3 Jul. 1983, pp. 1-11.

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