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:
Jul. 06, 2004
Filed:
Jul. 07, 1998
Applicant:
Inventors:
Daniel Hung, Santa Clara, CA (US);
Eric Young, San Jose, CA (US);
Roger Swanson, Santa Clara, CA (US);
Assignee:
S3 Graphics Co., Ltd., Grand Cayman, IO;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06T 1/540 ;
U.S. Cl.
CPC ...
G06T 1/540 ;
Abstract
Graphic processor compares z-buffer values of 3D objects to detect and mark interpenetrating pixels. Tag buffer stores marked values for antialiazing effectively by over-sampling, area-based, blending, alpha edge or other pixel-processing scheme. Performance is improved by selectively antialiazing at edges and/or interpenetrations. Cost is reduced by leveraging z-buffer storage therefor. Super-sampling antialiazing reduces sampling of select interpenetration elements, thereby avoiding processing entire image.