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. 21, 2009
Filed:
Nov. 29, 2002
Koji Ohno, Tokyo, JP;
Koji Ohno, Tokyo, JP;
Kabushiki Kaisha Square Enix, Tokyo, JP;
Abstract
A simple model for an object to be processed is obtained, and Z-values and display coordinates of vertexes of the simple model from a predetermined viewpoint are calculated. A rectangular Z-area associated with the calculated display coordinates is detected, and an area of a predetermined size is generated based upon the detected Z-area while keeping a feature of the detected Z-area. A minimum value Z1MIN of the simple model is extracted. The minimum value Z1MIN of the simple model is compared with all of the Z-values within the generated area, which are stored in a Z-buffer at that time. If it is determined that the minimum value Z1MIN of the simple model is larger than the maximum value Z2MAX within the generated area, subsequent steps are skipped. Thus, processing of a real model can be avoided, which reduces the processing.