Presentation
Unbiased Inverse Volume Rendering With Differential Trackers
SessionTechnical Papers
Event Type
Technical Paper
Research & Education
Virtual
Full Conference Supporter
Full Conference
Virtual Conference Supporter
Virtual Conference
Exhibitor Additional Full Conference
Exhibitor Full Conference
Time
Location
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.
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.
