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