Sorry I've been so busy. I meant to tell you that since you are using render GC in Pro, you do not want the shader GC enabled that comes with VSS. You found that out yourself apparently.

With PPro, use render GC, and set shader Gamma = 1.0

Or, if you prefer per-shader GC (for extra control) use shader GC=2.2 (or whatever number you prefer), and set render Gamma off.

But for a full understanding of all the ramifications, you have to consider color parameters in your lights, too. If your lights are white, and you only modify intensity, not light color, then either way works the same (render vs. shader GC).

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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)