Not intending to hijack your thread, but...
What if to replace a small square (let's say 2 km x 2 km) taking out the SRTM/fractal default data and inserting a real topography surveying in the place? That would be great to commercial use of this tool, for example, if I intend to show a factory or mining layout using the amazing render system, but with my own elevation 3D data. I'm aware that would be possible to create the mining machinery, vehicles, etc. in 3dsMax and import to Outerra, but I couldn't find a way to import the proper terrain into the engine.
Anyone?