One more thing about the "color" of gold. I gave you an sRGB color. I'm assuming (and make sure to use) the linear version of that in my shader. That means that to get the actual ratio of components, you must not use the direct value of x/255. You must convert from sRGB to linear.

For example, if the red is 255 and the green is 230, the ratio is NOT 230/255 = .902. You have to take it to the power 2.2 to remove the gamma correction. So the true ratio is (230/255)^2.2 = .797.

Poser Pro does this automatically.

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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)