import { Group } from 'thunder-3d';
export declare const getSunPosition: (date: Date, latitude: number, longitude: number) => {
    altitude: number;
    azimuth: number;
};
/**
 * create init
 * @param date
 * @param latitude
 * @param longitude
 * @param distance
 */
export declare const createSun: (date: Date, latitude: number, longitude: number, distance?: number, autoUpdate?: boolean) => (Group | ((date: Date, latitude: number, longitude: number) => void))[];