The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 17, 2007
Filed:
Sep. 30, 2004
Mark M. Leather, Saratoga, CA (US);
Mark M. Leather, Saratoga, CA (US);
Nintendo Co., Ltd., Kyoto, JP;
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.