Lightmass: multi-bounced sky lighting

[anonymous_user_586cbc0b]

I haven’t figured out a workaround yet =( Something like VisibilityTangentOffsetSampleRadiusScale or VisibilityNormalOffsetDistance is probably relevant but I didn’t get time to play with it before I had to switch to a higher priority task.

The brighter the 2nd and up bounce of skylight is, the more severe the artifact. Scenes with very bright diffuse (.7 and above) with 90 degree corners have it the worst. Adding a bevel may work around it.

Yea ,

Adjusting the
VisibilityTangentOffsetSampleRadiusScale from 0.8 to 0.001 and
VisibilityNormalOffsetSampleRadiusScale from 0.5 to 3
I managed to eliminated almost all the dark edges on a huge internal archviz scene.

Thanks for the hint!