Exporting a local scene to 3d format

[aogino]

In my local scene, I have a DEM in tif format that I'm using as terrain, on which I've draped an orthoimage (also tif format). Then I used a shapefile to extrude buildings: 

Now my question is, how do I export this whole scene into a 3D format for third-party software (obj, glTF, fbx, stl, ifc...) ? Is there a native way in ArcGIS Pro to do this ?