I need to have a large set of maps, hundreds of thousands. Each of these maps should have a rough size of 1 km by 1 km. I need the maps to also contain randomly positioned features such as trees and rocks. So basically I need a way to automatically generate a complete map with features. If this is impossible, I would go for the next best thing which would be generating only the terrain, no features.
To solve this necessity, you most certainly will need an editor script, that you run to generate the predetermined maps.
You can certainly do this, even wholly procedurally, starting from terrain creation from a heightmap.
Since the actual solution is pretty complex and articulated, I’m certain you’ll need to start from the ‘Terrain’ object, and its dynamic creation features. But I believe you can easily access everything you need from the terrain guide.