Irrlicht Engine

Irrlicht support there meshes: * 3D Studio meshes (.3ds) * Alias Wavefront Maya (.obj) * Cartography shop 4 (.csm) * COLLADA (.xml, .dae) * DeleD (.dmf) * FSRad oct (.oct) * Irrlicht scenes (.irr) * Microsoft DirectX (.x) (binary & text) * Milkshape (.ms3d) * My3DTools 3 (.my3D) * OGRE meshes (...

I haven't downloaded the program yet, but I have some questions. How exactly does it work? Can it take a .mb or .ma scene from maya and be good to go? Or is there a lot of work involved? Do I have to do any coding? or is movement taken care of? Do I have to define ground planes and walls, or can I j...