I have goten something similar to this by over producing a spotlight. When i say that, I mean, raising and lowering values ALOT between renders as well as moving them. I'm probably way of base though. I couldn't say for sure this is what your experiencing. Questiong: would you say those patches corespond to the figure meshes (robe's) geometry? That is to say, if you switched to a mesh view, would that triangle near the centre BE a triangle in the mesh? Just wondering, it may narrow it down to a mesh-fart (with what and why i dont know) rather than a texture.