import * as THREE from 'three';
import { Pass, CopyMaterial } from 'postprocessing';
export declare class WidenPass extends Pass {
    material: THREE.RawShaderMaterial;
    copyMaterial: CopyMaterial;
    renderTargetA: THREE.WebGLRenderTarget;
    renderTargetB: THREE.WebGLRenderTarget;
    passes: number;
    pxPass: boolean;
    constructor({ width }: {
        width: number;
    });
    set width(value: number);
    setSize(width: number, height: number): void;
    render(renderer: THREE.WebGLRenderer, inputBuffer: THREE.WebGLRenderTarget, outputBuffer: THREE.WebGLRenderTarget): void;
    initialize(renderer: THREE.WebGLRenderer, alpha: boolean, frameBufferType?: number): void;
}