Terrain Generation: Creating a Test Environment
One feature common to many game engines is a terrain editor. It allows you not only to sculpt your idea into being but to populate it with foliage, from grass to bushes to trees, via paint textures.
In Unity’s Terrain Engine many things are handled for you, such as LOD (level of detail), distance culling, and animations. While this makes it extremely easy to get up and running around a terrain, as with anything that does a lot of the work for you, it also comes with limitations. For more in-depth information on the terrain editor, go to the Reference Manual Terrain Engine Guide.
In this ...