公开(公告)号：US20250124649A1

公开(公告)日：2025-04-17

申请号：US18488807

申请日：2023-10-17

Applicant: Advanced Micro Devices, Inc.

Inventor： Yusuke Tokuyoshi ,  Kenta Eto

IPC: G06T15/50 ,  G06T15/80

Abstract: A technique for rendering is provided. The technique includes obtaining one or more samples for a pixel, the samples obtained for a microfacet surface from a spherical cap cut off by a lower plane positioned to exclude reflected rays that are occluded by the microfacet surface; obtaining one or more contributions corresponding to the one or more samples; determining a color for the pixel based on the one or more contributions.

公开(公告)号：US20240193847A1

公开(公告)日：2024-06-13

申请号：US18076496

申请日：2022-12-07

Applicant: ADVANCED MICRO DEVICES, INC.

Inventor： Yusuke Tokuyoshi

IPC: G06T15/06 ,  G06T3/40

CPC classification number: G06T15/06 ,  G06T3/40

Abstract: A processor shares path tracing data across sampling locations to amortize computations across space and time. The processor maps a group of sampling locations of a frame that are adjacent to each other to a reservoir. Each reservoir is associated with a ray that intersects subsets of path space such as a pixel. The processor resamples the reservoirs based on a similarity of probability density functions (PDFs) between pixels to select a set of samples mapped to the reservoir. The processor then performs resampling of the selected set of samples to obtain a representative light sample to determine a value for each pixel and renders the frame based on the values of the pixels.