This is what that looks like with GC=1, i.e. turned off.

You would never use the shader and lights this way in Poser 7, because you'd think it too dark. So you'd tweak and push settings until it worked without GC. But the results would go wonky as soon as you went to "evening" lights.

You can't expect all that pushing and cheating to work right with GC=2.2, because then you'd have double compensated.

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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)