US 12,423,906 B2
Ray tracing using reservoir resampling with spatial shift-mapping
Yaobin Ouyang, Shanghai (CN); Nan Lin, Shanghai (CN); Jacopo Pantaleoni, Berlin (DE); Markus Kettunen, Urdorf (CH); and Shiqiu Liu, Santa Clara, CA (US)
Assigned to NVIDIA Corporation, Santa Clara, CA (US)
Filed by NVIDIA Corporation, Santa Clara, CA (US)
Filed on Mar. 18, 2024, as Appl. No. 18/607,901.
Application 18/607,901 is a continuation of application No. 17/632,492, granted, now 11,935,177, previously published as PCT/CN2021/100056, filed on Jun. 15, 2021.
Prior Publication US 2024/0249463 A1, Jul. 25, 2024
Int. Cl. G06T 15/06 (2011.01); G06T 15/50 (2011.01)
CPC G06T 15/06 (2013.01) [G06T 15/506 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A method comprising:
identifying, for a pixel of a current image of a scene, a point in the scene as contributing to illumination of the pixel in the current image of the scene;
updating, based at least on the point, a buffer of stored radiance information for the pixel, wherein the buffer of stored radiance information is based on one or more previously identified points in the scene as contributing to illumination of the pixel or one or more additional pixels in at least one previous image of the scene, wherein the pixel and the one or more additional pixels depict a same object in the scene; and
rendering, using the updated buffer of stored radiance information, the current image of the scene.