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:
Nov. 19, 2002
Filed:
Apr. 15, 1999
Applicant:
Inventor:
Thomas Douglas Selkirk Duff, Berkeley, CA (US);
Assignee:
Pixar Animation Studios, Emeryville, CA (US);
Primary Examiner:
Int. Cl.
CPC ...
G06T 1/570 ;
U.S. Cl.
CPC ...
G06T 1/570 ;
Abstract
The present invention allows for rendering, with a micropolygon renderer, motion blurred images of objects modeled and animated with the most commonly used class of implicit surfaces. The invention introduces the technique of automatic implicit differentiation to automatically compute the time derivatives of points on the combined surface from the time derivatives of the constituent surface elements while evaluating the combined field function that defines the composite surface.