Here's a little test with the fBm node (fractal brownian motion) which makes a better density pattern. It should - that's what it is supposed to model. It's slow as heck, though.

Because this density pattern is more detailed, my sampling rate is too low. I have to find a way around that problem.

But I like these cloud shapes a lot better.

---

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)