I only know how to make simple forms like, box, tubes, disks, etc… And i want to know how to make a terrain with some craters, cuz my game its at moon. And one question how to add texture to it?
How to make it? I saw it at the island demo at jME page…
First of all, hello.
Secondly, you will find the "Wiki" link at the top a very useful. It has a search tool. For instance, try typing "Terrain" in there and see what you get. There's plenty here to get you started.
You'll need to understand terrain maps, and if you want to get really fancy you will probably want to use an external tool like Blender or Terragen.