Volumetric effects and Carrara (8.5)
Although I really like using dynamic hair and volumetric fog, apparently I haven't tried to mix the two before, and the result isn't good. For some reason, having both results in a sharp dividing line (with Carrara's volumetric fog) or a rolled edge (Inagoni's volumetric fog).
With the Carrara built-in fog I was disappointed, but it isn't the first time (sharp dividing lines matching bounding box edges of the volumetric fog itself -- such as the opposite "corner" edge, even when using cylindrical), but when Inagoni's volumetric did (almost) the same thing I wondered. Taking the fur away removes the artifact so that would appear to be a clincher for the culprit...
In the included image you can see the sharp dividing line over the figure. It is particularly visible from the ear to the hand. You may also notice the vertical dividing line that meets the one I just described. That was caused by a simple plane I was using for masking -- that had "visible" unchecked. Deleting the masks and re-rending only eliminated the vertical artifact (at least, I didn't see it in subsequent renders).
Does anyone know anything more about this? I'm curious why it happens, and why with dynamic hair.