Using Unreal Engine 4 for compositing in Fusion?

I would like to use Unreal Engine 4 to generate photoreal greenscreen backgrounds and composite them in Fusion. Has anyone done this? There is no info about doing this and I have not found a way to enter camera tracking data into Unreal Engine. The speed at which UE 4 renders is quite fast compared to rendering a scene in Vray and Max. The quality seems just a bit less than the Vray/ Max combination but I can compromise a little for the speed. Any thoughts about this?

Have you tried exporting a camera from Fusion as an FBX?

This should be perfectly doable, UE4 supports OpenEXR output since a couple of versions.
And Matinee will ask you if you want the camera and animtion to be created when you import an FBX with camera data, it pretty much does everything for you.

Thank you guys. I will look into camera tracking and exporting FBX files for camera position.