As I understand it, Poser doesn't do REAL SSS - what it does is an approximation of real SSS. It can look quite nice, but it's not the real thing.

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You just can't put the words "Poserites" and "happy" in the same sentence - didn't you know that? LaurieA
  Using Poser since 2002. Currently at Version 11.1 - Win 10.