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:
Feb. 16, 2016
Filed:
Feb. 17, 2012
Christopher Kulla, Los Angeles, CA (US);
Marcos Fajardo Orellano, Madrid, ES;
Christopher Kulla, Los Angeles, CA (US);
Marcos Fajardo Orellano, Madrid, ES;
Sony Corporation, Tokyo, JP;
Sony Pictures Technologies, Inc., Culver City, CA (US);
SOLID ANGLE SL, Madrid, ES;
Abstract
Provided are systems and methods that address the problem of single scattering in homogeneous volumes. In one implementation, an importance sampling technique is provided that avoids a singularity near point light sources. The system and method can be extended to the situation of area lights of arbitrary shapes. The error caused by the non-constant distance to the finite-extent area light is distributed by using random sample points within the area light as points from which lighting is calculated for sampling points along the ray.