What's that in your point #2? Not sure what you mean by "for any embedded node functions as well". That's not true. If it was, your Turbulence constructor wouldn't have worked, right? Your Turbulence constructor is all positional arguments - nothing named.

Another tidbit: It is perhaps documentary that you say:

ImageMap(Image_Source = "HeadFaceB.jpg", ...)

but it is unnecessary and I don't commonly do that. The first argument to imageMap is the file name, so I always just use:

ImageMap("HeadFaceB.jpg", ...)

Of course, the three dots don't mean you should type three dots - just stands for whatever else you want to say there, or perhaps nothing.

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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)