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:
Aug. 02, 2005
Filed:
Feb. 09, 1999
Applicant:
Angus Dorbie, Mountain View, CA (US);
Inventor:
Angus Dorbie, Mountain View, CA (US);
Assignee:
Microsoft Corporation, Redmond, WA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06T015/40 ;
U.S. Cl.
CPC ...
Abstract
A method and apparatus for early occlusion culling are provided. For the method of the present invention, a host processor establishes a coarse Z-buffer. The coarse Z-buffer is divided into a series of tiles. Each tile has an associated depth value. The depth values are updated using information fed back from the Z-buffer. The host processor uses the depth values to selectively discard occluded objects before they are rendered.