Hello!
You are correct that Azure Remote Rendering (ARR) supports .fbx & .gltf in our conversion pipeline today, and you can convert the Revit files into .fbx for use with ARR.
A few good resources to help make sure the model works as expected are:
- Documentation on configuring the conversion
- Azure Remote Rendering Asset Tool- to help visualize and iterate on conversions
If you run into any additional issues with conversion, we are happy to help!