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. 10, 2012
Filed:
Apr. 02, 2009
Loren Carpenter, Nicasio, CA (US);
Robert L. Cook, San Anselmo, CA (US);
Loren Carpenter, Nicasio, CA (US);
Robert L. Cook, San Anselmo, CA (US);
Pixar, Emeryville, CA (US);
Abstract
A contribution of a geometric element's attribute to a value of the image sample is determined analytically for an analytic dimension of evaluation and using sampling for a discrete dimension of evaluation. Motion blur effects are rendered by analytically determining the proportions of shutter time during which image samples are exposed to objects. Space-time projections are determined by the geometry edges' positions at the beginning and the end of the shutter time, which define surfaces of space-time projections. The times that the sample ray of an image sample enter and leave the space-time projections specify the proportions of the image sample's shutter time during which scene geometry is exposed to image sample points. The attribute value of an image sample point is determined from values of all of the scene geometry visible to the image sample point during the shutter time, each weighted by the time that it is visible.