Presentation

Unbiased Inverse Volume Rendering With Differential Trackers
Event Type
Technical Paper
Presentation Types
In Person
Interest Areas
Research & Education
Recordings
This session WILL NOT be recorded.
Registration Categories
Full Conference Supporter
Full Conference
Exhibitor Additional Full Conference
Exhibitor Full Conference
Keywords
Rendering
TimeMonday, 8 August 20229am - 9:08am PDT
LocationEast Building, Room 1-3
DescriptionSimplified volumetric representations, such as emissive volumes with "baked" lighting, are highly successful at inverse rendering tasks. Correctly accounting for the full volumetric light transport remains challenging.
We identify sources of bias and high variance in existing gradient estimators. Our linear-time estimator, differential ratio tracking, yields unbiased and low-variance gradients.