import * as THREE from "three";
import { Viewport } from "../types/viewport";
/**
 * 计算 three 中的 mouse 的值
 * @param  mouseXY - 鼠标相对屏幕位置
 * @param  element - canvas元素（three的展示元素）
 * @param  viewport - 屏幕剪裁
 */
declare function calculateThreeMouse(mouseXY: {
    x: number;
    y: number;
}, element: HTMLElement, viewport?: Viewport): THREE.Vector2;
export { calculateThreeMouse };