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white noise in glass object

Posted: Sun May 20, 2012 12:06 pm
by Tok_Tok
BAM! I got another problem with lighting :roll:

Image

Why are those white dots all acros the globe? I already tried lowering the bump map value and increasing the mesh density but that doesn't solve the problem..
The emitter is in a glass sphere along with the globe, the glass sphere is slightly larger then the globe but it's hard to see. Then the emitter is in the space between the globe and the outside of the glass sphere.

Any ideas?

Re: white noise in glass object

Posted: Mon May 21, 2012 10:19 pm
by Bubbaloo
Personally, I would use the new pre-tesselated displacement instead of bump for this.

Re: white noise in glass object

Posted: Mon May 21, 2012 11:25 pm
by Tok_Tok
I will try that. But doesn't that increase the render time dramatically?

Re: white noise in glass object

Posted: Mon May 21, 2012 11:48 pm
by Bubbaloo
No because it's using real geometry. It will increase your RAM usage so don't go overboard with the tesselation setting.