I have a humanoid model which is made up of four FBX files; one is for the human, one is for the T-shirt, one is for the pants and one is for the hair. I want to merge them into one FBX, because the manner in which I am using it requires using a single FBX file to represent the character.
Can we merge four FBX files into one, using Maya, and export as a single FBX file?
Merging multiple FBX files is actually fairly easy.
You first need to bring all of the FBX files into Maya. As I have found out, this is fairly simple. Just open an empty scene, and drag and drop the files from a file explorer.
Position all of the objects in Maya. If you are unfamiliar with Maya, itself, the basic transformation principles actually work very similar to Unity. After clicking on a model, for example, you can use W, E and R to bring up the gizmo tools for moving, rotating and scaling, respectively.
Once you have all of your pieces in the desired positions, select "Mesh > Combine".
Export the file with "File > Export All", and be sure to select the FBX file type before you save.
That's it. Note that the object will still appear as a hierarchy of objects, when loaded into Unity, but they are all compressed into a single FBX file.