/3/ - 3DCG

>>740092
Typically you would want SSS (the areas painted white) to be around fleshy parts of the head like the ears, the nose, the mouth and the eyelids (as represented in the left image).

However, the _B texture for Tifa's head out of the box (in the 2nd image) do not match what you would normally find in an SSS map. The ears, lips and eyelids stay dark but everything else is lit up evenly. That's all wrong.

So in the third image, putting an Invert node on the _B map makes it resemble an SSS map much better. However, the problem now is that the eyebrows, the jawline, the cranium, and the area around the nostrils (all bony areas) are now all lit up. Which is also wrong.

And that's not counting the giant-ass color mismatch around the collarbone which connects the two Body and Head _B textures together.

Given those inconsistencies, I don't believe the _B maps to represent SSS, or anything else for that matter. I could be wrong, but to me they're just masks meant to aid in the texturing process of something else entirely.