There appears to be conflicting information here.

The gamma of an image is not the same as the gamma correction (GC) factor.

Telling Poser that a displacement or bump map has a gamma = 1 does not turn off or disable gamma correction.

Poser's goal in using gamma is to allow for linear calculations. Monitor and image gamma are usually both 2.2, but not all images are PICTURES. Some images are DATA. The DATA images do not have a gamma = 2.2. They have a gamma = 1.

So it is incorrect to tell Poser to use 2.2 everywhere. Only PICTURES are encoded with gamma = 2.2 and you tell Poser to use 2.2 on those pictures. Not on others.

As for the translucence in SSS, scale adjusts the amount of attenuation in the medium. When scale is high, the medium has high scattering (high attenutation, high density particles) and light does not travel very far. When the scale is low, the medium has low scattering and light will travel very far.

The term "scatter" refers to the phenomenon of a photon experiencing interference, preventing it from following its normal straight-line path. High scattering means that a photon is more likely to bounce out near where it entered, instead of traveling all the way to the other side.

---

Renderosity forum reply notifications are wonky. If I read a follow-up in a thread, but I don't myself reply, then notifications no longer happen AT ALL on that thread. So if I seem to be ignoring a question, that's why. (Updated September 23, 2019)