im saving for maya only because its file format is native to my video editing software, yes my video editing software is a 3d format due to the way it uses the GPU to perform the effects faster then rendered via the cpu.
this means all of mayas 3d dimensions are carried into the editing software which allows me to place film on 3d elements and keep the existing Z dimension features.
If no-one gives your an answer to a question you have asked, consider:- Is your question clear.- Did you ask nicely.- Are you showing any effort to solve the problem yourself 