I've been working on this animation for a hotel from my hometown, and I'm running into a problem rendering blobby particles behind a refractive mental ray shader. Example:
I'm not really sure why this would be happening, I've only got a flat lambert on the blobbies. I checked for settings in the particleShape, and looked at the help for both particles and the mental ray shaders, but it didn't say anything as to why.
My only other idea is that the blobbies are clipping too close to the blender jug, and are just not rendering the backfaces, or that could also be totally wrong. Any ideas would be highly appreciated!