Hi guys, I'm fairly new to Carrara so I hope there is a simple solution to this that I'm just not finding. I am using the new C4pro, although I had the same problem with C3. When I render using Global Illumination, I seem to get lots of grubby dirty looking artifacts. This really is quite annoying. I have played around with most render settings and havn't managed to cure it. Is this an inherant bug of am I just missing something? Any help would be most appreciated.. This pic shows what I mean.

Brian

Fortitudine Vincimus - "by endurance we conquer."