Just a little background I am a new Unreal4 user, with limited game dev knowledge. I work for a company that does some game Dev type work that we have typically used Unity for, so that is the background I am coming from.
My problem is:
I am exporting a mesh from Maya using FBX. All of the materials I have setup are just a plain lambert while some of them have an alpha matte included. When I import the mesh into Unreal none of my materials that had the Alpha Matte setup are coming through. I finally found that I have to go into the texture files in Unreal and turn on its alpha channel, then go back into the material type and change it to a Masked material then plug the Alpha into the opacity channel. This is all fine and well if I only have a handful of these to update, but in the project I am going to be working on we will end up with hundreds if not thousands of materials with an alpha matte and doing this conversion manually would be prohibitive.
So is there a way to export a mesh from Maya using FBX, Collada, or another format that when I import the files into Unreal the Alpha Mattes come through as well? Any help would be greatly appreciated.