三加农炮 将THREE.Mesh转换为CANNON.Shape，并使用简化的形状进行可选的优化。 用法 安装： npm install -- save three - to - cannon 进口： // ES6 import { threeToCannon } from 'three-to-cannon' ; // CommonJS threeToCannon = require ( 'three-to-cannon' ) . threeToCannon ; 用： // Automatic. const shape = threeToCannon ( object3D ) ; // Bounding box (AABB). const shape = threeToCannon ( object3D , { type : threeToCannon . Type . BOX