hborre posted at 10:25 PM Wed, 15 December 2021 - #4431913

@ ChromeStar You noted correctly and I made a point to mention that the scaling and radius value had a direct correlation with each other, the higher the scaling, the lower each RBG radius should be to maintain some measure of acceptable SSS without causing major blooming in unexpected areas.  It struck me odd that the values published from the original scientific paper were 100 times higher than the ones mentioned in the Poser manual.  Just the same, if you strike a balance between Subsurface and Subsurface Radius then you shouldn't need to be overconcerned about the glow effect because it won't occur under most conditions.

I've stumbled upon the same balance between Subsurface radius and scale... Based on my own numerous tests, I've got the feeling that the best combination is full units for the three radius values and a low scale: 0.002 to 0.005 for the scale, depending on the lighting, (4.820000, 1.690000, 1.090000) for light skins or (3.670000, 1.370000, 0.680000) for dark skins for the radius.
I've tried to invert: *100 for the scale and /100 for the radius, but I was then loosing the "red effect" on the ears

I wonder if this is related to the fact that the radius must be given in mm, whatever the scale for the rest: the official Poser documentation is explaining this for the PrincipledBsdf (which I'm using for the skin) while giving these values as hundredths of a millimeter.
Or maybe the surface of our human figures is too thin for this to work correctly?

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