基于OGRE的地形编辑器 可扩展性强，非常好用 -OGRE-based terrain editor scalability, and very easy to use

俄罗斯人写的一个游戏UI源码，开源，跨平台，非常不错，在开源界评价很高。-Russians write a game UI source code, open source, cross-platform, very good, very highly in the open source community.