Presentation

Unbiased VNDF Sampling for Backfacing Shading Normals
SessionTalks
Contributor
Yusuke Tokuyoshi
Event Type
Talk
Interest Areas
Gaming & Interactive
Production & Animation
Research & Education
Registration Levels
Ultimate Supporter
Ultimate Attendee
Exhibitor Ultimate
Time
Location
DescriptionWe present a corrected normalization factor for a visible normal distribution function (VNDF) to avoid the bias of VNDF importance sampling at a backfacing shading normal. Our correction is easy to implement and has a negligible impact on performance for the Smith microsurface model.
Contributor
Yusuke Tokuyoshi
AMD Japan Ltd.