@openhps/core/dist/esm/three/lights/HemisphereLight.js

Open Hybrid Positioning System - Core component

import { Light } from './Light.js';
import { Color } from '../math/Color.js';
import { Object3D } from '../core/Object3D.js';

/**
 * A light source positioned directly above the scene, with color fading from
 * the sky color to the ground color.
 *
 * This light cannot be used to cast shadows.
 *
 * ```js
 * const light = new THREE.HemisphereLight( 0xffffbb, 0x080820, 1 );
 * scene.add( light );
 * ```
 *
 * @augments Light
 */
class HemisphereLight extends Light {
  /**
   * Constructs a new hemisphere light.
   *
   * @param {(number|Color|string)} [skyColor=0xffffff] - The light's sky color.
   * @param {(number|Color|string)} [groundColor=0xffffff] - The light's ground color.
   * @param {number} [intensity=1] - The light's strength/intensity.
   */
  constructor(skyColor, groundColor, intensity) {
    super(skyColor, intensity);

    /**
     * This flag can be used for type testing.
     *
     * @type {boolean}
     * @readonly
     * @default true
     */
    this.isHemisphereLight = true;
    this.type = 'HemisphereLight';
    this.position.copy(Object3D.DEFAULT_UP);
    this.updateMatrix();

    /**
     * The light's ground color.
     *
     * @type {Color}
     */
    this.groundColor = new Color(groundColor);
  }
  copy(source, recursive) {
    super.copy(source, recursive);
    this.groundColor.copy(source.groundColor);
    return this;
  }
}
export { HemisphereLight };