You can use the standard material editor which comes with UE4 to create materials for VR. There’s a lot of things you should avoid though.
-Don’t use Parallax occlusion mapping (POM) because it eats up your framerate
-translucent materials can cause a lot of overdraw if you’re not careful, which eats up GPU performance
A lot of do’s and don’ts are pretty much discovered through trial & error and lots of careful profiling.