Computer graphics processing and selective visual display system – Computer graphics processing – Attributes
Reexamination Certificate
2007-04-17
2007-04-17
Zimmerman, Mark (Department: 2628)
Computer graphics processing and selective visual display system
Computer graphics processing
Attributes
C345S582000
Reexamination Certificate
active
10953436
ABSTRACT:
Apparatus and example methods for environment-mapped style of bump-mapping (EMBM) are provided that use a pre-computed bump-map texture accessed as an indirect texture along with pre-computed object surface normals (i.e., the Normal, Tangent and Binormal vectors) from each vertex of rendered polygons to effectively generate a new perturbed Normal vector per vertex. The perturbed new Normal vectors are then used to look up texels in an environment map. A specialized bump map texture data/coordinate processing “bump unit” is provided in the graphics pipeline for performing predetermined matrix multiplication operations on retrieved lookup data from the indirect-texture bump map.
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Cunningham Greg F.
Nintendo Co. Ltd.
Nixon & Vanderhye P.C.
Zimmerman Mark
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