Those shaders that come with P8 were written when Poser 5 came out - when the node system was introduced. At that time in the Poser community, there was no understanding of GC, little understanding of how reflections really work in real materials, and no provisions for the more sophisticated lighting models we have now. Don't use them except to amuse yourself with how far we've come.

The big problem with that particular gold shader is it introduces self-lit response to compensate for the fact that Poser 5 didn't even have image based lighting, let alone IDL.

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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)