Terrain Code

Where can I get the source code for the terrain toolkit? I want to edit it and add more features. I’ve got Unity free.
Considered adding 3 things…

  1. Spherical terrains. I wanted to see how heightmaps worked, so I could work out a spherical terrain system. I’ve just spotted the procedural examples, though, and the vertex sculpting one is similar, just need to get it to work in editor. Adding @ExecuteInEditMode doesn’t cut it.
  2. Overhanging cliffs. Would be very useful for my current project.
  3. Caves. Again, would be extremely useful.

Unity is not open source and therefore you can’t have access to the source-code.

What “features” were you thinking of adding? Perhaps we can help you achieve this within Unity itself.

EDIT: In response to your edit - caves and overhanging cliffs are usually achieved through using modelling programs such as Blender or 3DS Max.