Columbus View mode. A 2.5D perspective view where the map is laid out flat and objects with non-zero height are drawn above it.
Morphing between mode, e.g., 3D to 2D.
2D mode. The map is viewed top-down with an orthographic projection.
3D mode. A traditional 3D perspective view of the globe.
Indicates if the scene is viewed in 3D, 2D, or 2.5D Columbus view.