Ok, I removed all the purple and left only the veins - I can see the veins but only in the ear and nowhere else.

This leads me to believe that I'm seeing proof of what BB said - this isn't really changing color much, more like it's changing the amount of scatter. So I can only see a difference when it's against a light making most everything be very translucent.

What I intended was that, on your body you have a thin layer of skin, and then it's translucent enough so that you slightly see the colors of what's underneath it, more so under a strong light. Can Poser truly not do this?

What happens if I switch to a PoserSurface root with a CustomScatter node instead? Does this give me more control? Or will it be the same thing in the end?

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Feel free to call me Ohki!

Poser Pro 11, Poser 12 and Poser 13, Windows 10, Superfly junkie. My units are milimeters.

Persephone (the computer): AMD Ryzen 9 5900x, RTX 3070 GPU, 96gb ram.