Quote - I think this is rather an enlightening approach.  We may learn something new along the way.  BTW, I see in your Color_Math node explanation you are using 2 primary  and 1 secondary colors.  Have you experimented with the addition and subtraction of secondaries to see what effects you get.  Also you stated:

*Quote: what "Green" is to Poser. It's 0, 1, 0. We know that? Right? This is an absolute. To Poser, when you say "Green", it thinks 0, 1, 0.

*Is that correct?  I think Poser should interpret that as 0,255,0.  The mathematical expression of a color in it's channel should range between 0 - 255, not an on-off switch integer.

Happy to be corrected here, but when I look at a node with color input values, the range appears to be 0 to 1 decimal value (I never said integer), where 0 is black, and 1 is white and the rest are decimal values between 0 and 1. Not an on-off switch. So, 255 is seen by Poser as 1? and 128 as .5?

No? Must have misunderstood something.

Monterey/Mint21.x/Win10 - Blender3.x - PP11.3(cm) - Musescore3.6.2

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