Computer graphics processing and selective visual display system – Computer graphics processing – Animation
Reexamination Certificate
2007-11-20
2007-11-20
Nguyen, Phu K. (Department: 2628)
Computer graphics processing and selective visual display system
Computer graphics processing
Animation
C345S589000, C345S606000, C382S172000
Reexamination Certificate
active
11195474
ABSTRACT:
Scheme for use in cloth simulation that provides a good dynamic “wrinkled” look to the cloth as it moves. The simulated area of each of the triangles in the triangle mesh is compared with the original area of the triangle to determine how much it got compressed or stretched during animation. This comparison is then used as a basis for altering the lighting of the pixels representing the triangles in order to improve the appearance of the wrinkles in the cloth. The lighting of each pixel is altered by altering a surface normal of the pixel using a value obtained from each of one or more normal maps. Normal maps are selected by using wrinkle ratios that are calculated based on the above mentioned comparisons.
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Fitch Even Tabin & Flannery
Nguyen Phu K.
Sony Computer Entertainment America Inc.
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