Vray GPU light/white dots issue

[garth100]

Guys, does anyone know how to resolve these light/white dots issues that I?m having right at the top of the window glass? It only happens when I rendered with GPU. CPU render just ok.

[Miro]

Have you tried clamping the output in the Color mapping rollout of the render setup? If that doesn't help then send us the scene or a part of it that reproduces the issue. Thanks!

[garth100]

No. Only because I am using LWF. The window has a black rubber lining going around with vray fast Sss2 mat assigned. I changed it to a regular vray mat which resolved the problem.

It would be awesome though if your team can make a video on color mapping for 3DS max. Corona and Fstorm make it so easy based on their work flow.

[Miro]

Thanks for the suggestion - I've logged a request to our documentation team for a color mapping tutorial.

[garth100]

Thank you! regardless Vray is the best!!!

[Alex_M]

Just a curious question. Do you really need to use an SSS material for the rubber window seal? I would have just used a regular Vray material. I don't think anyone will notice the difference. Besides, I don't think I've ever seen rubber window seal that acts as an SSS object. They all look pretty solid and non transmissive to me. You would also shave off some of the render time. Just thinking out loud.

[garth100]

Closeup the Fast SSS just looks wicked! But you right. The rubber typically looks solid. After changing the material, the render speed did improve as well.
Question on the nighties. Is there any value installing new nightly release? Normally I would install the new nightly release only because am excited about changes and improvement made by the Vray team.