SSS artifacts

[fAEkE]

I'm getting some prepass artifacts on my SSS material, see the red dots in the image. This render was done with quite high settings using brute force and prepass rate 0 in the SSS material. How can I get rid of them?

The glassmaterial has dispersion on. SSS had 8 subdivs and 5 depth. Prepass blur 1.2. Scatter GI on.

[vlado]

My guess is that you will need more subdivs for the sss, but it would be best if you post the scene here or send it us at vray@chaosgroup.com so that our support guys can take a look.

Best regards,
Vlado

[fAEkE]

Thaks for the reply. I use 1/20 DMC subdivs with 0.003 threshold. If I understand vray correctly I need to set the material subdivs to 40 to double the possible secondary rays?

Anyway, I have sent the file to you guys.

[vlado]

Thaks for the reply. I use 1/20 DMC subdivs with 0.003 threshold. If I understand vray correctly I need to set the material subdivs to 40 to double the possible secondary rays?

Something like that, yes Thanks for the file, will look at it.

Best regards,
Vlado