I was very excited when vray got the fast sss, since I never seem to get the results I want with the “old” method..
However I am going slightly mad with the new fast sss too:
Can anyone shed som light on why I get so different results with only change of colors between the two renders?
Is this logical?
max7/RC2
-Tom
well your shallow color in the second image is brighter, so I think that might be something to do with it.
After reading the online manual, I found that I forgot to blend my sss with a regular vraymtl..
But I would be interested in an explanation on why a light shallow color blocks the sss
-Tom
You can think of the shallow color and deep color as layers on top of each other, similar to how the reflection and diffuse colors are layered in a regular VRayMtl. In VRayMtl, if the reflection color is white, the diffuse color is dimmed. The same is true for the fast sss - the more light is scattered by the shallow layer, the less light reaches the deep layer.
Best regards,
Vlado
vlado any plans on adopting the brickmap method, as in mr/rman?
mental ray does not use brick maps, but a simpler illumination caching scheme. We do not have plans on implementing brick maps either. As for other caching schemes, obviously for 1.5 it’s too late, but it may happen in a future update.
Best regards,
Vlado