I’m getting some terrible scallop type splotches on some glass, and have not been able to figure a way to eliminate them.
This seems to be a shadow issue, as turning off receive shadows fixes the issue. When I increase the brightness of the ceiling, the problem goes away. Turning off reflections has no effect, but turning off refraction makes the problem go away.
I’m happy with the light/dark values of the scene, and don’t really want to mess with increasing the lighting or material brightness.
that is because you’re using the light cache for glossy rays, what you see are basically lc samples. you may want to switch the filter from nearest to fixed, tweak it a bit and see if it helps, or uncheck use light cache for glossy rays altogether. it will render slowly though.
glad it helped. you might get away with it for animation, but I usually don’t use lc for glossy effects. it just doesn’t look good enough, but of course that might be just my fault.
