Speckle issues with Vray

[Tommy L]

Hello all,

Here's a little puzzler, would be grateful if any one can give me a quick fix to this. See the

speckling on the left side of the bed.

 

Using the latest vray, max 2008.

Irradiance map as primary and Brute force as secondary.

 

Any help much appreciated,

Tom.

[WAcky]

what are your noise and clr thresh values?

 

It might be worth posting your material settings too.

[Fernando Lino]

Increase the subdivisions for Brute force( default 8) to 16-24 and Noise threshold .001

[Tommy L]

Increase the subdivisions for Brute force( default 8) to 16-24 and Noise threshold .001

 

I have tried this already.

[Tommy L]

OK brainiacs, here are the settings.

Edited December 4, 2008 by Tommy L

[fadi3d]

hey tom i think u should increase ur AA to 2 and 4.and ur Irr set are too high they will give u extreme render time. try 60 /40 and ur choice of brute force for sec bounce is odd i think u should go for LC.

i hope this helps

Cheers

[Tommy L]

hey tom i think u should increase ur AA to 2 and 4.and ur Irr set are too high they will give u extreme render time. try 60 /40 and ur choice of brute force for sec bounce is odd i think u should go for LC.

i hope this helps

Cheers

 

Fadi,

Thanks! However, the soft furnishings (carpet and chairs) use displacement, so Im finding that doing a higher res rendering is providing a better solution (rendertime) for the AA. Also, the Irr Map is precalculated, so the render time is kind of irrelevent on that one. I shall try LC for second bounce. I still cant get the speckles to go away though.....

[Stephen Thomas]

I don't normally use adaptive subdivision, but I notice your colour threshold is set at 0.1. With Adaptive DMC this would normally be set to 0.01 or less to get rid of noise. Worth a try.

[Tommy L]

I don't normally use adaptive subdivision, but I notice your colour threshold is set at 0.1. With Adaptive DMC this would normally be set to 0.01 or less to get rid of noise. Worth a try.

 

Thanks Stef, that has 90%% solved the problem.

[Stephen Thomas]

Probably just your max rate holding it back then, bump it up a notch or two.

[samk]

i think i have a similar problem but more drastic, i built my model and materials in sketchup and imported them into rhino to render in vray.

 

i did this on numerous occasions and usually the prob was two model overlapping each other (idk why...) but this time thats not the issue idk what is...any sugg??