import * as THREE from 'three';
/**
 * 将 立方体投影图 渲染成 圆柱投影图
 * @param renderer - THREE.WebGLRenderer
 * @param cubemap - 立方体投影图
 */
export declare function renderCubeToEquirectangular(renderer: THREE.WebGLRenderer, cubemap: THREE.CubeTexture, flipY: boolean): void;