一个巨cool的3D游戏引擎源代码。其0.3版本开始收费，卖10000美金，其功能有bsp/portal,particle system,physics,skelet-animation,energe unit,lod.四叉树/八叉树，shaders(glsl/hlsl)-a giant cool 3D game engine source code. Version 0.3 of its fees, selling 10,000 dollars, and its function is BSP