Yea there's plenty of other stuff to sell.

If I did a script, it would handle the more complicated cases, like V4's default shaders. What you did above is very sensible and will work for tons of "ordinary" materials - most of what is used looks like that. A script that does that is only a few days work, whereas what I was thinking of would take weeks to get right for all the scenarios.

Consider how many people use the color map, invert it, and run that into bump. Now should you GC that or not?

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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)