/**
* @author alteredq / http://alteredqualia.com/
* @author mrdoob / http://mrdoob.com/
*/
export class HemisphereLightHelper {
   // THREE.HemisphereLightHelper = function(light, sphereSize) {
   //    THREE.Object3D.call(this);
   //    this.light = light;
   //    this.light.updateMatrixWorld();
   //    this.matrix = light.matrixWorld;
   //    this.matrixAutoUpdate = false;
   //    this.colors = [new THREE.Color(), new THREE.Color()];
   //    var geometry = new THREE.SphereGeometry(sphereSize, 4, 2);
   //    geometry.rotateX(- Math.PI / 2);
   //    for (var i = 0, il = 8; i < il; i++) {
   //       geometry.faces[i].color = this.colors[i < 4 ? 0 : 1];
   //    }
   //    var material = new THREE.MeshBasicMaterial({ vertexColors: THREE.FaceColors, wireframe: true });
   //    this.lightSphere = new THREE.Mesh(geometry, material);
   //    this.add(this.lightSphere);
   //    this.update();
   // };
   // THREE.HemisphereLightHelper.prototype = Object.create(THREE.Object3D.prototype);
   // THREE.HemisphereLightHelper.prototype.constructor = THREE.HemisphereLightHelper;
   // THREE.HemisphereLightHelper.prototype.dispose = function() {
   //    this.lightSphere.geometry.dispose();
   //    this.lightSphere.material.dispose();
   // };
   // THREE.HemisphereLightHelper.prototype.update = function() {
   //    var vector = new THREE.Vector3();
   //    return function() {
   //       this.colors[0].copy(this.light.color).multiplyScalar(this.light.intensity);
   //       this.colors[1].copy(this.light.groundColor).multiplyScalar(this.light.intensity);
   //       this.lightSphere.lookAt(vector.setFromMatrixPosition(this.light.matrixWorld).negate());
   //       this.lightSphere.geometry.colorsNeedUpdate = true;
   //    }
   // } ();
}