Here are some links.

As to the scatter node, aRtBee teesingly implies that there is something interesting and unique waiting to be discovered there. I would not at all agree that "BB himself never really got into it". I can use it in place of scatter perfectly well and I know how to adjust it to do things the regular scatter cannot. But I found no real value in it. The unique things it can do vs. the scatter node are mostly irrational behavior. As I wrote before:

"I tested it a lot - it doesn't do what I want, because the fundamental algorithm (which SM did not invent but rather adopted) is flawed, IMO. So - it is only good at doing what Scatter already does, and so I don't bother too much with it.

I have used it a couple times, as there are some minor things it can do differently than Scatter. But the biggest thing you'd want to do is have a really long scatter with a proper attenuation color, not a reflection color. It doesn't do that right - the algorithm is a bit of a hack, and it involves incorrect math, again IMO."

Over many months, I occasionally would get it out again and come up with a situation where I thought it was uniquely useful. But each time, either its flaws became exposed, or I found a way to do the same effect with the scatter node. So it sits in my "dust bin" of nodes, along with the new skin node and the ks_microfacet node. These are all perfectly usable, but, for me, they offer no benefit over scatter + reflect + blinn. After I decided that, I deeply studied the blinn and reflect even more and cannot come close to that pair for realistic specularity. (as compared to the skin node or the ks_microfacet)

Specularity is as much important to skin as the subsurface part - if you only get one half the equation correct, then your setup is half wrong, and half wrong is pretty much useless. (Or it's traditional Poser - depends on your point of view and whether you find me irritating or not and whether you're unable to learn things)

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)

Forum: Poser - OFFICIAL

Subject: Creating SSS network in Poser for skins to be distributed.