import type { WebGLRenderer } from '../../core';
import type { EffectProperties, Node, Viewport } from '../main';
import { Effect } from '../main/Effect';
import { Material } from '../resources';
export interface EmbossEffectProperties extends EffectProperties {
    strength: number;
}
export declare class EmbossEffect extends Effect {
    static material: Material;
    strength: number;
    constructor(properties?: Partial<EmbossEffectProperties>, children?: Node[]);
    apply(renderer: WebGLRenderer, source: Viewport): void;
}