Could anyone recommend how I can reduce the grain in this light that's being reflected from the glossy wooden floor? The rest of my scene cleans up really nicely, but this light is still an issue. I was hoping adaptive sampling would help with this, but it doesn't seem to do much for this render.
I'm using PT at 2500 samples, 2 diffuse, no specular, Path term of .3, coherent ratio of .4, and adaptive sampling at .3 with min. 520 samples (2x2). The environment is a closed room and lit by large directional lights. The light reflected on the floor is an emissive textured light bulb.