Probably that I haven't up to the end chewed new Dispersion parameter 
I do many tests with different transparent materials - no doubt new parameter - very important innovation...
There was such question: at enabled parameters Sub-pixel mapping and Clamp output, the transparent material has some greenish shade.
For an example Ethanol material:

And render:

So should be?
Primary: Irrmap
Secondary: Light cache
Sorry for my english.

I do many tests with different transparent materials - no doubt new parameter - very important innovation...
There was such question: at enabled parameters Sub-pixel mapping and Clamp output, the transparent material has some greenish shade.
For an example Ethanol material:
And render:
So should be?
Primary: Irrmap
Secondary: Light cache
Sorry for my english.
Comment