Computer graphics processing and selective visual display system – Computer graphics processing – Three-dimension
Patent
1992-11-19
1998-04-14
Fetting, Anton W.
Computer graphics processing and selective visual display system
Computer graphics processing
Three-dimension
345427, G06T 1550
Patent
active
057398208
ABSTRACT:
A method and system for approximating a Phong shading calculation for 3D renderings of realistic graphic images. The new method uses only a modest number of multiplies and adds to approximate a calculation that required divides, square roots and powers. The approximation uses approximate normalization, vector differences, and a shape function to simplify the processing and to improve performance significantly while still generating a graphic rendering that is very realistic.
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Apple Computer Inc.
Fetting Anton W.
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