06005582 is referenced by 212 patents and cites 3 patents.

A method for texture mapping an image includes passing an interpolating filter along a line of anisotropy in a texture map and computing a weighted sum of the outputs of the interpolating filter to compute pixel intensity values. The weighting of these output values can be computed using a one dimensional digital filter. The line of anisotropy is derived from the inverse transform, which describes the mapping of a point on the surface of a geometric primitive to a point in the texture map. A system supporting anisotropic filtering includes texture memory, a set-up processor, and a texture filter engine. The set-up processor parses a command stream and retrieves texture data into the texture memory. The texture filter engine determines the line of anisotropy for a pixel and computes a weighted sum of interpolated values sampled along the line of anisotropy.

Title
Method and system for texture mapping images with anisotropic filtering
Application Number
511553
Publication Number
6005582
Application Date
June 27, 1996
Publication Date
December 21, 1999
Inventor
Kent E Griffin
Bellevue
WA, US
Steven A Gabriel
Redmond
WA, US
Agent
Klarquist Sparkman Campbell Leigh & Whinston
Assignee
Microsoft Corporation
WA, US
IPC
G06F 15/00
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