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:
May. 23, 2017
Filed:
Mar. 15, 2013
Disney Enterprises, Inc., Burbank, CA (US);
Brent Burley, Burbank, CA (US);
Andrew Selle, Burbank, CA (US);
Disney Enterprises, Inc., Burbank, CA (US);
Abstract
The disclosure provides an approach for rendering images which include subsurface scattering effects. In one aspect, a shader computes subsurface scattering effects via a ray-tracing or point-based technique using a normalized diffusion profile. The shader may use the inverse of a cumulative density function associated with the normalized diffusion profile to determine, for each ray intersecting the surface, points on the surface at which to evaluate the normalized diffusion profile. To determine the lit surface of a pixel due to subsurface scattering, the shader may multiply the result of the integral of the normalized diffusion profile for each of the R, G, and B color components by corresponding components of a diffuse color constant. Further, the shader may scale the integral of the normalized diffusion profile based on a scaling function which accounts for a forward-scattering nature of a medium and compensates for out-of-plane scattering.