three.js/src/objects/LOD.d.ts

import { Object3D } from './../core/Object3D';
import { Raycaster } from './../core/Raycaster';
import { Camera } from './../cameras/Camera';
import { Intersection } from '../core/Raycaster';

export class LOD extends Object3D {
  constructor();

  type: 'LOD';

  levels: { distance: number; object: Object3D }[];

  addLevel(object: Object3D, distance?: number): this;
  getObjectForDistance(distance: number): Object3D;
  raycast(raycaster: Raycaster, intersects: Intersection[]): void;
  update(camera: Camera): void;
  toJSON(meta: any): any;

  /**
   * @deprecated Use {@link LOD#levels .levels} instead.
   */
  objects: any[];
}