import { Texture } from '@pixi/core';
import { Group, Layer } from '@pixi/layers';
/**
 * @memberof PIXI.lights
 * @static
 * @type {PIXI.layers.Group}
 */
export declare const diffuseGroup: Group;
/**
 * @memberof PIXI.lights
 * @static
 * @type {PIXI.layers.Group}
 */
export declare const normalGroup: Group;
/**
 * @memberof PIXI.lights
 * @static
 * @type {PIXI.layers.Group}
 */
export declare const lightGroup: Group;
/**
 * @memberof PIXI.lights
 */
export declare class LayerFinder {
    /**
     * Last layer
     * @type {PIXI.layers.Layer}
     */
    lastLayer: Layer | null;
    /**
     * Diffuse texture
     * @type {PIXI.Texture}
     */
    diffuseTexture: Texture | null;
    /**
     * Normal texture
     * @type {PIXI.Texture}
     */
    normalTexture: Texture | null;
    /**
     * Check
     * @param {PIXI.layers.Layer} layer -
     */
    check(layer: Layer): void;
    static _instance: LayerFinder;
}