A heightmap and/or level editor for Panda3D
Koparka (Polish for excavator) is a Heightmap terrain editor made in and for Panda3D, but it can be used by any other software that uses a heightmap.
The (WIP) manual is avaible in the manual directory. You can also view the manual online here
The editor ships with some models in a text format (.egg) and has grown to over 400MB.