Here is the shader.

In Poser, the Edge_Blend node internally calculates and uses the cosine of the angle of incidence. If you set the parameters to white, black, and 1, then the cos(alpha) is actually what it generates as its output. How nice!

So then I use a Math:Div node to divide the desired density by the cos(alpha). In this case, I used a density of .5.

---

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)