20*20 km terrain imported from G.Earth with SketchUp and edited in 3ds Max.
Realtime rendering in Unity 3d through asynchronous loading of the tiles, and custom shaders writing.
Featuring sound ambiances, simple procedural vegetation, various points of interests and a day/night cycle.
Related to "Motorhackz: Car Survival Game" project, this open world can be explored with a car.