text: class Lighting extends THREE.Object3D {
    constructor() {
      super();
  
      let lightDirection = 0;
  
      let dirLight = new THREE.DirectionalLight( 0xffffff, 1 );
      dirLight.color.setHSL( 0.095, 1, 0.95 );
      dirLight.position.set( -1, 1.75, 1 );
      dirLight.position.multiplyScalar( 20 );
  
      dirLight.castShadow = true;
      dirLight.shadow.mapSize.width = 2048;
      dirLight.shadow.mapSize.height = 2048;
      dirLight.shadow.radius = 2;
  
      let d = 100;
      dirLight.shadow.camera.left = -d;
      dirLight.shadow.camera.right = d;
      dirLight.shadow.camera.top = d;
      dirLight.shadow.camera.bottom = -d;
      dirLight.shadow.camera.far = 3500;
  
      this.add(dirLight);
      // this.add(new THREE.DirectionalLightHelper( dirLight, 1 ));
  
      let hemiLight = new THREE.HemisphereLight( 0xffffff, 0xffffff, 0.6 );
      hemiLight.color.setHSL( 0.6, 1, 0.6 );
      hemiLight.groundColor.setHSL( 0.095, 1, 0.6 );
      hemiLight.position.set( 0, 4, 0 );
      this.add( hemiLight );
      // this.add( new THREE.HemisphereLightHelper( hemiLight, 1 ) );
  
      this.onUpdate = this.onUpdate.bind(this);
    }
  
    onUpdate() {
    }
  }
  
  module.exports = Lighting;
  