Quote - > Quote - As an example of something you may not be aware of, consider the following x = AGC(Blend(a, b, f))

or

x = Blend(AGC(a), AGC(b), f)

One of these is identical to render GC, the other is not. Under specific circumstances, these two produce the same output, and in other cases produce diffrrent output. Whey they differ, one of them is identical to render gc and the other is not. Can you say which is identical to render GC? Forgive the typos, I am in Edgartown Martha's Vineyard oa sailboat and only have my ipad which is hard to type on.

The first equation is identical to render GC ?

x = AGC(Blend(a, b, f))

Which cases will produce different output? 

I'm rarely successful with render GC.  When I turn on render GC, PP2010 gamma corrects everything in the scene.  There isn't a handy GU interface that would allow me to selectively turn GC off for specific Poser objects.  Will PP2012 allow me to turn GC on for background props but leave GC off for foreground characters?

On second thoughts, if I were a software developer programming GC in Poser Pro, I would anti-GC each color first before blending them.  So, the second equation is identical to render GC.

x = Blend(AGC(a), AGC(b), f))