NVIDIA Corporation
RESERVOIR-BASED SPATIOTEMPORAL IMPORTANCE RESAMPLING UTILIZING A GLOBAL ILLUMINATION DATA STRUCTURE

Abstract:

A global illumination data structure (e.g., a data structure created to store global illumination information for geometry within a scene to be rendered) is computed for the scene. Additionally, reservoir-based spatiotemporal importance resampling (RESTIR) is used to perform illumination gathering, utilizing the global illumination data structure. The illumination gathering includes identifying light values for points within the scene, where one or more points are selected within the scene based on the light values in order to perform ray tracing during the rendering of the scene.