There are two ways to create interactive experiences within buildings, landcsapes, construction sites or urban settings:
* By using stereo-panorama renderings (which can also be combined with 3D models) or
* By using the actual 3D model from Revit or other 3C CAD app

It’s recommeded that you do not use the full 3D models, but rather start with panorama renderings. The workflow would be first create renderings from multiple camera locations in your building, and then use the cloud rendering feature to export them to panorama images (or use directly from within Revit the cloud rendering to stereo panorama). You will then use those panorama images to create the spaces in Play in which you can combine real 3D geometry, add tags etc to create a richer 3D experience.

To get started quickly, use the panorama template as seen here.