We currently use MapKit as our map layer for our application. We have 3D models of buildings and other features that we want to overlay and visualize on the map. The issue seems to be that - as far as I can tell - we can only pitch the map to whatever iOS decides is the "right" pitch for the map, not what our imagery has. So if we wanted to pitch the map even when 3D imagery isn't available it doesn't seem like that is possible.
Are there options for us to provide our own 3D models / imagery in MapKit? Or is there something else we should be looking at?