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:
Sep. 12, 2006
Filed:
Nov. 06, 2002
Satoru Osako, Kyoto, JP;
Naoya Morimura, Kyoto, JP;
Satoru Osako, Kyoto, JP;
Naoya Morimura, Kyoto, JP;
Nintendo Co., Ltd., Kyoto, JP;
Abstract
A partial shadow volume having a predetermined height defined by a contour of a character object and light coming from a light source is formed based on undulations of a land object, and is then stored in advance in a DVD-ROM or the like. A CPU reads this partial shadow volume for placing the partial shadow volume at a point of intersection of the land object and a line extending from character object placement coordinates to a light direction. The placed partial shadow volume is rendered by using the stencil buffer. Based on values in the stencil buffer, a shadow of the character object cast on the land object is rendered. Thus, a realistic shadow can be rendered with a reduced processing load for shadow rendering processing.