vue-three 聚光灯及光源辅助线

    // 聚光灯光源
    spotLight (color, x, y, z, dis) {
      const spotLight = new THREE.SpotLight(color)
      spotLight.position.set(x, y, z); // 光源位置
      spotLight.castShadow = true; //开启灯光投射阴影
      spotLight.intensity = 3 // 强度
      spotLight.angle = 0.3; // 角度
      spotLight.penumbra = 1; // 半影
      spotLight.decay = 1; // 衰退
      spotLight.distance = dis; // 距离

      this.scene.add(spotLight)

      // 辅助线
      let spotLightHelper = new THREE.SpotLightHelper(spotLight, 0x976fb6);
      this.scene.add(spotLightHelper)

      // 光源寄托
      this.createLightView(color, x, y, z)
    },
    // 光源寄托
    createLightView(color, x, y, z){
      let geometry = new THREE.SphereGeometry(30, 30, 30);
      let material = new THREE.MeshPhongMaterial({ color });
      let cube = new THREE.Mesh(geometry, material);
      cube.position.set(x, y, z)
      this.scene.add(cube)
    },