nemesis schrieb:
>>> Well, maybe they're artifacts of the photon mapping; that would 
>>> appear to be quite fitting.
>>
>> They're artifacts of forward based monte-carlo GI.
> 
> isn't Photon Mapping a forward-based monte-carlo GI technique itself?

I guess it does qualify.

Well, it's a bidirectional approach actually; but I can't possibly 
imagine that VRay would use /full-fledged/ forward tracing either.

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