i wonder, if they use some fake caustics or approximations based on the normals of the selected materials, and made a more convinient version of their older way of realizing/faking caustics.
is there any chance to compare the caustics that D5 generates with a specific model with a render made with some offline render with the same model etc.?
I don´t mind good fakes, because most probably couldn´t tell the difference, especially, if they happen in real time and are constantly changing ^.^