US 11,741,633 B2
Converting discrete light attenuation into spectral data for rendering object volumes
Johannes Jendersie, Berlin (DE)
Assigned to Nvidia Corporation, Santa Clara, CA (US)
Filed by NVIDIA Corporation, Santa Clara, CA (US)
Filed on May 17, 2021, as Appl. No. 17/302,974.
Prior Publication US 2022/0375130 A1, Nov. 24, 2022
Int. Cl. G06T 7/90 (2017.01); G06T 7/55 (2017.01)
CPC G06T 7/90 (2017.01) [G06T 7/55 (2017.01); G06T 2207/10024 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A method of image rendering, the method comprising:
identifying a first light in a scene, the first light having a first representation in a first color rendering scheme (CRS) and a second representation in a second CRS;
identifying an attenuation function characterizing interaction of the first light with a medium in the scene;
determining, using the attenuation function, a third representation in the first CRS of the first light interacting with the medium;
determining one or more fitting parameters of the attenuation function based at least in part on minimizing a difference between the third representation of the first light and a fourth representation, in the second CRS, of the first light interacting with the medium; and
rendering, using the attenuation function and the determined one or more fitting parameters, an image comprising at least one of the first light interacting with the medium or a second light interacting with the medium.