Heya! I got brought onto a project in C4D that’s using the physical renderer, with DOF and motion blur. I have a max/vray background lately and have little experience with the physical renderer.
I’m finding that I have to increase my Sampling Subdivisions have to be very very high in order to get less grain in my renders… This obviously increases the render time significantly. What I’ve noticed though, is that the reflections contribution to the final image is the source of the grain. At lower, reasonable sampling rates, if I look at the individual passes, the diffuse, the GI, etc are all silky smooth in the motion blurred and DOF’d areas, and its only the reflection that’s insanely grainy. This is with R13, I’ve tried disabling Blurrines of the reflections to see if that was contributing to messing with the sampling of the reflections, but same effect.
Does anyone have any insight or thoughts on this, and how I might be able to smooth out my reflection grain without just cranking the Sampling subdivs in the render settings? I wish there was more control with this renderer, I’ve been spoiled by VRay’s sampler.