Quote - This is what I see as genius: the genius of simplification.

Simple, you say? Well, yeah, sure, but who would have thunk it up? You took 24 hand-placed shader nodes and turned it into it into 4... with maths.

Another tick for maths. This is incredible stuff, Bill... THANK you!

You're welcome. I knew you'd like this one.

Quote - Oh, and I'm pretty sure I got it... that Add() node Value_1 drives the whole thing, right? .5 density is like 75% opacity, .3 density is like 51% opacity, which is 49% transparency? etc...

Correct. I forgot to explain that since I needed the density in two places, I pulled it out into its own node, so you'd only have to set the value once.

Quote -
You could make that a PM: Opacity node - forcing people to think in terms of those transparency channels as opacity channels.

Yep - did so already. I only built part 1 and 2 by hand. Then I went to matmatic for the next parts, and of course there are PM: nodes.

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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)