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. 10, 2002
Filed:
Jul. 11, 2000
Kwo-Woei Yet, Miao-Li Hsien, TW;
Silicon Integrated Systems Corporation, Hsinchu, TW;
Abstract
The present invention discloses a method for improving 3D computer graphics by pre-sorting display lists or display primitives. The display lists or display primitives with smaller indicators are placed at the front end of a reordered region, and the display lists or display primitives with larger indicators are placed at the rear end of the reordered region. The indicators are the minimum, average or maximum values computed with the depth values, or even be the depth values by themselves. After a sorting action is finished, the method of the present invention will enter a Z-buffer pre-test process. Because the display lists or display primitives have been sorted from the lowest to the largest depth valves, the probability of skipping hidden pixels in the Z-buffer pre-test process will be increased and the unnecessary computations of hidden pixels will be reduced in the rendering process.