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. 26, 2016
Filed:
Jun. 07, 2013
Applicant:
Pixar, Emeryville, CA (US);
Inventors:
Ralf Habel, Zurich, CH;
Wojciech Jarosz, Zurich, CH;
Assignee:
Pixar, Emeryville, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06T 15/50 (2011.01);
U.S. Cl.
CPC ...
G06T 15/506 (2013.01);
Abstract
An efficient numerical method for accurately rendering translucent materials using photon beam diffusion is provided that can account for multilayer materials and directional incident and exitant effects at the surface. In an embodiment, refracted incident light is represented continuously as a photon beam instead of as discrete photons. An integration scheme for calculating a radiant exitance value at a point on the surface of the translucent material is disclosed that uses importance sampling and evaluates a radiant function at a limited number of points along the beam.