Presentation

Generalized Resampled Importance Sampling: Foundations of ReSTIR
Event Type
Technical Paper
Presentation Types
In Person
Interest Areas
Research & Education
Recordings
This session WILL NOT be recorded.
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Full Conference
Exhibitor Additional Full Conference
Exhibitor Full Conference
Keywords
Rendering
TimeTuesday, 9 August 20229:13am - 9:21am PDT
LocationEast Building, Ballroom C
DescriptionWe generalize resampled importance sampling (RIS) to correlated samples from different domains without needing to know exact PDFs. This solidifies the theoretical foundation of ReSTIR and allows deriving an unbiased ReSTIR path tracer that reuses difficult light paths between pixels and frames by context-aware shift mappings.