Hm - I no longer take the time to test things on P6, so I'm glad to hear I made things better not worse. The new AO settings are supposed to be more realistic - getting it to work better in P6 is a nice bonus.

I did expand on the handling of SSS in this version, as well as ordinary diffuse and specular and other effects. Everything here is based on the principles of layered interactions. I start with a certain percentage of incoming energy available for specular interactions. As the energy is consumed by those in some areas, there is less to reach deeper for diffuse reactions, or SSS reactions. So by building the material response in layers, instead of just adding a bunch of independent effects together, I get a lot more realism. This is to be expected, since it is what happens in real life.

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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)