Exporting 3d assets as .obj for Virtual Tabletop Use

[Deneb23556192cv6h]

Hello, is there a way to bake the MTL/PNG  into the object in painter so it can be exported for use in a vitual tabletop(VTT)?  In the VTT there are usually just the 3 files, but when I export with painter I am not sure which channels to turn on and off.  Thank you for your help.