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:
Jan. 28, 2014
Filed:
Sep. 16, 2011
Wojciech Jarosz, Zürich, CH;
Derek Nowrouzezahrai, Zürich, CH;
Robert Thomas, Lake Forest, CA (US);
Peter-pike Sloan, Salt Lake City, UT (US);
Matthias Zwicker, Zürich, CH;
Wojciech Jarosz, Zürich, CH;
Derek Nowrouzezahrai, Zürich, CH;
Robert Thomas, Lake Forest, CA (US);
Peter-Pike Sloan, Salt Lake City, UT (US);
Matthias Zwicker, Zürich, CH;
Disney Enterprises, Inc., Burbank, CA (US);
Abstract
A method and system for progressively rendering radiance for a volumetric medium is provided. A photon simulation produces a representation of photon beams in a scene. The photon beams are rendered with respect to a camera viewpoint, by computing an estimated radiance associated with the photon beams. A global radius scaling factor is applied to the photon beams. Over multiple iterations of these steps, the global radius scaling factor is progressively decreased, thereby reducing overall error by facilitating convergence. This order can be mixed up. Finally, the renderer can be efficiently implemented on the GPU as a splatting operation, for use in interactive and real-time applications.