If you mean full CG enviornments then Maya could be a good choice as it is popular among many studios. For 2.5D and projection worlflow you could try Nuke / Mari combination. Cinema 4D is also worth considering with it's Projection Man toolset but I believe not many big studios use it.
I believe most of these softwares you can download their personal learning editions for free.
Comper / Matte Painter
my freaking blog
Last edited by metalrahul; 06-05-2014 at 02:27 AM..