Important Materials Theory - Photographic Rendering with V-Ray for SketchUp - page 252

8) to create the scattered reflections. At a subdiv value of 16, we are using 256
samples per pixel, and at 32 subdivs, we are using a whopping 1024 samples for
every single pixel in the rendered image, which is a lot of samples.
Remember also to factor in the fact that lots of other sample types are being used
by V-Ray to create other aspects of the rendered image, and it shouldn't be sur-
prising to us that we see our render times escalating.