Now I come here to talk about jME. It is not Java Mobile Edition.
Now we gonna talk about j Monkey Engine. I can say that is a good tool to work with 3d graphics. With the jME you can organize you game data in tree structure, with culling of data "..jME's camera system uses frustum culling to through out scene branches that are not visible. This allows for complex scenes to be rendered quickly, as typically, most of the scene is not visible at any one time. ..."
The jMe is completely open source by BSD license. You can use, download, modify and contribute for this...
I think with this opensource project you can do movies, games, and all what you want in 3D enviroment, so lets try jME!!!
Click on picture to go to jmonkeyengine.com