splotches on fine bmup areas

[winberg]

The last job I did involved som boat interiors, on some of the fabric covered area with fine bumps I had big problems getting rid of the splotches.

Using more or less "universal settings", I was wondering if there is a specific setting that I should concentrate on that takes care of these kind of problems..



-Tom

[vlado]

Which V-Ray version is this? Also, what is your primary GI engine?

Best regards,
Vlado

[winberg]

Sorry about that, this is rc3 and using IR for first and LC for second..

-Tom

[vlado]

Does it look the same without the bump? Not sure where might be the problem right away - if it is in the bump or in the irradiance map subdivs.

Best regards,
Vlado

[winberg]

I guess the problems is the sampling in the bump area, I could do some tests, but the broblem showd up on some other areas where there were some fine fabric bumps..
I am guessing the problem lies in the Irradience map sampling, and I was wondering if maybe lowering the the "Normal threshold" could fix this..?
I guess I should do some more testing..

-Tom