Three.js 模型导入问题，初始化后感觉有部分模型未显示

Question

这是初始化的模型，上面哪一部分不知道为什么不显示

这是放大一点，或者鼠标调整视角后的模型，这是正常的样子

请问一下是哪里设置的有问题嘛？
这是 js代码

      // 初始化场景
      init() {
        let container = document.getElementById("container");
        /* 场景 */
        this.scene = new THREE.Scene();
        /* 相机 */
        this.camera = new THREE.PerspectiveCamera(50, container.clientWidth / container.clientHeight, 1, 1000);
        this.camera.position.z = 571.389;
        this.camera.position.x = 27.845;
        this.camera.position.y = 682.565;
        /* 渲染器 */
        this.renderer = new THREE.WebGLRenderer({ antialias: true});
        this.renderer.setClearAlpha(0.0);
        this.renderer.setSize(container.clientWidth, container.clientHeight);
        this.renderer.setPixelRatio( window.devicePixelRatio );
        this.renderer.toneMapping = THREE.ACESFilmicToneMapping;
        this.renderer.toneMappingExposure = 1;
        this.renderer.outputEncoding = THREE.sRGBEncoding;
        container.appendChild(this.renderer.domElement);
        new OrbitControls(this.camera, this.renderer.domElement);
        // 辅助线
        var axisHelper = new THREE.AxisHelper(500);
        this.scene.add(axisHelper);
      },
      // 加载模型
      loadObj() {
        this.manager = new THREE.LoadingManager();
        this.manager.addHandler( /\.dds$/i, new DDSLoader());
        new GLTFLoader(this.manager).load("../../static/glb/map-01.glb", (obj) => {
          console.log(obj);
          this.mapObj = obj;
          this.scene.add(this.mapObj.scene);
          this.mapObj.scene.scale.set(1, 1, 1);
          this.mapObj.scene.translateX(120);//沿着x轴正方向平移距离120
          this.mapObj.scene.translateZ(-100);//沿着z轴正方向平移距离-100
          this.animate();
        });
      },
      // 灯光效果
      light() {
        var ambientLight = new THREE.AmbientLight(0x222222, 0.3);
        ambientLight.position.set(0, 0, 0);
        this.scene.add(ambientLight);

        var pointColor = new THREE.Color(0x0040ef);
        var directionalLight = new THREE.DirectionalLight(pointColor);
        directionalLight.position.set(5.000, 162.615, -585.440);
        directionalLight.castShadow = true;
        directionalLight.shadow.bias = 0.0;
        directionalLight.shadow.radius = 1.0;
            directionalLight.intensity = 1;
        this.scene.add(directionalLight);
      },
      // 动画效果
      animate() {
        this.renderer.render(this.scene, this.camera);
        var self = this;
        this.animateFrame = requestAnimationFrame(function() {
          self.animate();
        });
      },