import * as THREE from 'three'; import { Vector3, Line3, Plane } from "three"; export declare class PlaneExt extends Plane { constructor(normal?: Vector3, constant?: number); intersectLine(line: Line3, optionalTarget?: Vector3, extendLine?: boolean): Vector3; intersectRay(ray: THREE.Ray, optionalTarget?: Vector3, extendLine?: boolean): Vector3; }