quote:

Whether smaller buckets really solve the "hot render spot" issue depends on whether that spot can be smeared over multiple buckets. If it really is a spot, that won't be the case. In my experience it paid off to investigate on the causes of it: did I switch off Light Emitter for hair? Did I disable real reflections for teeth (specularity is good enough)?  end quote

 

I did a little test on some hair (sylfiad hair) that in the past has taken a very long time to render with IDL.  I did a render with light emitter turned on and one with it turned off. The one with it on did infact take longer to render but the one with it off looks flat and cartoonish. too bad, I would have liked to speed up the render of this.

W10, Ryzen 5 1600x, 16Gb,RTX2060Super+GTX980, PP11, 11.3.740