Quote - Dan - the transition at the terminator is what I was talking about. It doesn't fade realistically because the GC function is not actually what your monitor is doing. The monitor is following a more complex response curve, called sRGB. .Anything near black is very different between GC and sRGB.

Thanks bb - phew! I'm just not up on all the terminology. Yes, the transition at the terminator is what I'm having difficulty with.
I was remembering some flash-lit photos of friends in the countryside at night I took years ago - no moon or light pollution of any kind. The forms were crisp but the transitions in places were wonderfully soft. Wish I could find them. I'll read up on this.

 

PoserPro2014(Sr4), Win7 x64, display units set to inches.

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