I used make simple 3D terrain using old DEM data year's back in a simple OpenGL engine. I used FlightSimX a lot imported 30 meter ASTER DATA a few years back and used to use a UFO plane to fly around to see all the locations.
This program pretty much does what I was doing but at much better level, plus driving capability, roads and house's.
The only issue I have with it, road's are not perfect, Hopefully Open Road Data can be fixed to include bridges and caves and maybe editing to make sure roads at the correct level and width's. But it's dam amazing, it's through out the entire world.
I purchased it the other day, Thumbs Up to the Developer!
The Terrain engine is Good, If Roads gets Good enough, and Open Building Data gets Good. The Program has capability of totally going mainstream.
Maybe have the capability of adding Satellite Texture Data.
I'm kinda hanging for OpenVR. I have tried GoogleEarth VR but since I don't have Motion Controllers, I couldn't move around. I did Demo being near a cliff and it was amazing.
Cheers
