Material novice question- Importing a Maya FBX and materials only come in with a diffuse texture. Are there any ‘tricks’ in creating Roughness and Normal maps when they are missing?
There are several tools that permits create normals and roughness fronm a diffuse texture. I recomend you Shadermap for windows, got a very cheap version thats can get all you need.
Of curse there are other programs too, like Knald, Crazybump etc.