import { DataArrayTexture, TextureDataType, WebGLRenderer } from 'three';
import { PassBase, PassBaseOptions } from './PassBase';
import { ShaderArrayPass } from './ShaderArrayPass';
import { ShadowMaterial } from './ShadowMaterial';
import { ShadowResolveMaterial } from './ShadowResolveMaterial';
import { AtmosphereUniforms, CloudLayerUniforms, CloudParameterUniforms } from './uniforms';
export interface ShadowPassOptions extends PassBaseOptions {
    parameterUniforms: CloudParameterUniforms;
    layerUniforms: CloudLayerUniforms;
    atmosphereUniforms: AtmosphereUniforms;
}
export declare class ShadowPass extends PassBase {
    private currentRenderTarget;
    readonly currentMaterial: ShadowMaterial;
    readonly currentPass: ShaderArrayPass;
    private resolveRenderTarget;
    readonly resolveMaterial: ShadowResolveMaterial;
    readonly resolvePass: ShaderArrayPass;
    private historyRenderTarget;
    private width;
    private height;
    constructor({ parameterUniforms, layerUniforms, atmosphereUniforms, ...options }: ShadowPassOptions);
    initialize(renderer: WebGLRenderer, alpha: boolean, frameBufferType: TextureDataType): void;
    private initRenderTargets;
    private copyShadow;
    private copyReprojection;
    private swapBuffers;
    update(renderer: WebGLRenderer, frame: number, deltaTime: number): void;
    setSize(width: number, height: number, depth?: number): void;
    get outputBuffer(): DataArrayTexture;
    get temporalPass(): boolean;
    set temporalPass(value: boolean);
}