Bugs in Glossy

[TOM_cg]

Hi,

I know it is a comman bug and we are all pissed off when it occurs..
Does some of you have a work around or a solution for this ?

When using a glossy reflection materials, pixels are just bright in blotches ...

[kwistenbiebel1]

Re: Bugs in Glossy

Have you tried decreasing the multiplier of the bump map?

[TOM_cg]

Re: Bugs in Glossy

Hello biebel,

The bump is set to default. I got those artefact even in zone not bumped..
Do you think it could be bump related ? I tought I was more compatibility between IR/LT and emissive material.
I used only emissive in that scene except 2 omni in the atrium, and the glossy reflection (just in front of the camera )of those are correct..

any clues ?

[dalomar_cg]

Re: Bugs in Glossy

Whats happening is the the process of calculating the glossy values is causing the resulting value to accumulate to more than white. With out getting into too much why or how that is, the best way to get around this is to enable Clamp Output and SubPixel mapping in the Color Mapping rollout. Keep in mind that doing this will prevent the added dynamic range since all the colors will stop being calculated when they reach pure white.

[TOM_cg]

Re: Bugs in Glossy

Hey Dalomar,

That's resolve the problem and accelerate the render, thanks a lot...