Computer graphics processing and selective visual display system – Computer graphics processing – Three-dimension
Reexamination Certificate
2011-05-31
2011-05-31
Wu, Xiao M (Department: 2628)
Computer graphics processing and selective visual display system
Computer graphics processing
Three-dimension
C345S419000
Reexamination Certificate
active
07952581
ABSTRACT:
A lighting model specified in light space may be transformed to a 3D scene, which may include numerous lights. When the lighting model is transformed to the 3D scene and is uniformly scaled or near-uniformly scaled, intensity or brightness of light at sample points, corresponding to points in the 3D scene, may be adjusted proportionately for a light source using a value based, at least partly, on a transform matrix. When the lighting model in the light space is scaled to non-uniformly stretch a lit area, the sample points may be transformed to the light space, using an inverse of a transform matrix. Distances from the light source to the transformed sample points in the light space may be used to determine attenuation and range with respect to the light source.
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Lehenbauer Daniel
Parker J. Jordan C.
Smith Adam
Stevenson Alexander
Wood Daniel N.
Capitol City TechLaw
Irving Richard C.
Microsoft Corporation
Tseng Charles
Wu Xiao M
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