说明： 当前比较流行的WebGL开发组件Three.js的扩展库ThreeBSP,用于几何体组合操作,可以把标准的几何体组合在一起创建出一个新的几何体,实现相交、联合、相减等操作。 (The current extended WebGL development component Three.js's extended library ThreeBSP is used for geometry combination operation. It can combine standard geometry together to create a new geometry, and achieve operations such as intersection, union and subtraction.)
