US 12,322,039 B2
Techniques for improved lighting models for appearance capture
Paulo Fabiano Urnau Gotardo, Zurich (CH); Derek Edward Bradley, Zurich (CH); Gaspard Zoss, La Tour-de-Peilz (CH); Jeremy Riviere, Zurich (CH); Prashanth Chandran, Zurich (CH); and Yingyan Xu, Zurich (CH)
Assigned to Disney Enterprises, INC., Burbank, CA (US); and ETH Zürich (Eidgenössische Technische Hochschule Zürich), Zurich (CH)
Filed by DISNEY ENTERPRISES, INC., Burbank, CA (US); and ETH Zürich (Eidgenössische Technische Hochschule Zürich), Zürich (CH)
Filed on Dec. 14, 2022, as Appl. No. 18/081,597.
Claims priority of provisional application 63/290,643, filed on Dec. 16, 2021.
Prior Publication US 2023/0196665 A1, Jun. 22, 2023
Int. Cl. G06T 15/04 (2011.01); G06T 7/00 (2017.01); G06T 15/06 (2011.01); G06T 15/50 (2011.01); H04N 13/254 (2018.01)
CPC G06T 15/506 (2013.01) [G06T 7/0012 (2013.01); G06T 15/04 (2013.01); G06T 15/06 (2013.01); H04N 13/254 (2018.05); G06T 2215/16 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A computer-implemented method for rendering an object from captured appearance data comprising a plurality of texels, the method comprising:
determining, based on a projection of a plurality of 3D rays from a 3D position of a first texel, texture coordinates of a first vector originating from the first texel where the first vector intersects a second texel;
rendering the second texel from a viewpoint of the first texel based on appearance data at the second texel;
based on the rendering of the second texel, determining an indirect lighting intensity incident to the first texel from the second texel;
updating appearance data at the first texel based on a direct lighting intensity and the indirect lighting intensity incident to the first texel from the second texel; and
rendering the first texel based on the updated appearance data at the first texel.