Refractive material with sss2 problem

[TSR_trix]

Dont know for sure is this covered already somewhere on the forum but Im having a problem with refractive material (water) with sss2 shader.

My "back object" is having a sss2 shader. A water material object is running over it, and in some parts it makes the sss skin very dark.
I made some tests and it seems that when the intersecting object is small enough it makes the sss refraction very dark.
This might be a feature from the shaders, but wont look good and would be nice if it could prevent on somehow.

I also tried with a basic Vray material instead of the sss shader and then the refraction was the same in all areas.

[vlado]

It is currently an issue with the raytraced multiple scattering. This will be fixed at some point, for the moment the work-around is to use non-intersecting objects, or use f.e. the prepass mode.

Best regards,
Vlado

[TSR_trix]

Thank you Vlado from the answer, that explains the situation well.
Im using Vray 3 beta so I wait for the upcoming updates.