可能是哪方面的知识遗漏了，

Camera的设置

import sceneConf from '../../confs/scene-conf.js';
import blockConf from '../../confs/block-conf.js';

class Camera {
  constructor() {
    this.instance = null;
  }
  init() {
    const aspect = window.innerHeight / window.innerWidth;
    this.instance = new THREE.OrthographicCamera(-sceneConf.frustumSize, sceneConf.frustumSize, sceneConf.frustumSize * aspect, -sceneConf.frustumSize * aspect,-100, 85);
    this.instance.position.set(-10, 10, 10);
    this.target = new THREE.Vector3(0, 0, 0);
    this.instance.lookAt(this.target);
  }
}
export default new Camera();

const cuboid = new Cuboid(-10, -8, 30);
const cylinder = new Cylinder(10,10, 10);

立方体设置这样的参数才能使物体在相应的位置