'world unlimited'

sorry, may be a noob question:

I want a world without bounds. The usual approach is to have a 333 cube, with identical subcubes, and if the viewer goes out of the center cube, he "jumps" and enters the center cube from the opposite side. I don't know how this model is called…

My question: Is there any support in JME for this? Or has somebody already written such code? I'm too lazy to reinvent the wheel: The concept may be simple, but I guess it's not so easy to get it working smoothly.

It should be enough to render a single cube multiple times (four times at maximum if you cannot see from one end of the cube to the other). I havn't done it yet, but I think it would be just adding a couple of lines to the render method of your application (plus wrapping your items coordinates of course).