Hi,
I have always go with Maya default’s World Up Y coordinate system, never had any reason to use the Z up until recently as I tried to build a rig for Unreal engine, as the game engine is using Z Up, and mgear’s EPIC Mannequin Template is also using Z-up.
I am not sure if i should also build my rig using Z-up because one of the concern i had is it might be hard to work with other existing Y Up rig or scene. It might be as easy as simply rotating the rig and things will be fine but i imagine the data will be stored differently and so perhaps certain tools/scripts will need to be modified to manipulate or transfer the data and another thing that come into my mind is poses that i stored in pose library (eg. i using Studio Library) won’t work if they are saved with different world coordinate system? there might be other issues i am not aware of so hope someone with more experience can share their insight on when to use Z-up and any advantages to choose one over the other…
