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. 28, 2007
Filed:
Dec. 09, 2003
Adam Woodbury, Emeryville, CA (US);
Rick Sayre, Emeryville, CA (US);
Tom Lokovic, Emeryville, CA (US);
Tom Duff, Emeryville, CA (US);
Adam Woodbury, Emeryville, CA (US);
Rick Sayre, Emeryville, CA (US);
Tom Lokovic, Emeryville, CA (US);
Tom Duff, Emeryville, CA (US);
Other;
Abstract
A method for rendering participating media effects is disclosed. At least one object having a surface is defined and a lattice, aligned with a camera, is also defined that encompasses the at least one object. A volumetric line integral is computed from the camera to lattice points in a neighborhood of a particular point on the surface of the object to obtain a value. The obtained value is filtered to obtain a volumetric line integral value for the particular point on the surface. Additionally, the set of values may be cached in memory and may be used in computing additional volumetric line integrals when applicable. The set of values determined for lattice points is filtered to determine the volumetric line integral value for a particular point on the surface.