Quote - Bagginsbill, you have given us some super good information here that will help us tremendously. Big thank you for your detailed responses.

But I can assure you that turning the GC down to 1.0 is significantly different than turning GC off. I have now done renders now with GC off, GC at 1.0 and GC at the default 2.4 or thereabouts. And the 1.0 is much richer than the default setting and it is not as rich/bright as turning GC off. And the preview screen looks way better with the CG turned down.

And I can turn around and assure you that x to the power 1 is just x.

The gamma function is raising the number to a power. Gamma 2.2 is x ^ (1/2.2). Gamma 1.5 is x ^ (1/1.5). Gamma 1 is x ^ (1/1) which is x ^ 1 which is just x. "Just x" is identical (the definition of) not doing gamma correction.

Nevertheless, I considered the unlikelihood that you'd want to challenge me on the subject of gamma correction unless you had evidence. Perhaps Poser Pro 2012 has a bug. So I loaded numerous scenes of many different lighting setups, and rendered with GC off, and also GC = 1.

I do not find any differences. All the images are identical. I have now wasted half an hour demonstrating what I already know from years of experience with gamma.

So - if you can actually reproduce your differing outcomes, and show me the difference, that would be helpful. It would serve no purpose for me to show you 20 pairs of identical renders as proof that there is no difference. It is not possible to prove something doesn't exist by showing examples of its absence. Maybe there's a scenario I simply did not run into, and there really may be a bug I have not encountered. The only resolution is to show me a difference in two renders, perhaps in a scene we shared, where the outcome is different and the only difference is that one render setting; GC off versus GC = 1. 

Or for you to realize that you changed two things and assumed that the other thing was unimportant, and only the GC mattered.

I'm not speaking of preview here - just renders. Although I have to say that I can't find a difference in preview either.

Also, 2.4 is not the default. It is 2.2. The gamma of sRGB images is 2.2.

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