I learned most of what I know about graphics programming with gamestudio and that is probably more than 99.9% of Unity users do.
There is no problem with postprocessing, deferred lighting, reflecting water and shadow mapping with A7 Comm.
I know that stuff like shadow mapping can in theory be added to A7 by the user but I haven't seen a solution yet by anyone which can compare to Unity's (and also Ogre's) implementation in quality. There isn't anything production ready so far. This would be JCL's job actually.
