import { BlendFunction, Effect, KawaseBlurPass, MipmapBlurPass, Resolution, ShaderPass } from 'postprocessing';
import { Uniform, WebGLRenderTarget, Texture, TextureDataType, WebGLRenderer } from 'three';
import { UniformMap } from '@takram/three-geospatial';
import { DownsampleThresholdMaterial } from './DownsampleThresholdMaterial';
import { LensFlareFeaturesMaterial } from './LensFlareFeaturesMaterial';
export interface LensFlareEffectOptions {
    blendFunction?: BlendFunction;
    resolutionScale?: number;
    width?: number;
    height?: number;
    resolutionX?: number;
    resolutionY?: number;
    intensity?: number;
}
export interface LensFlareEffectUniforms {
    bloomBuffer: Uniform<Texture | null>;
    featuresBuffer: Uniform<Texture | null>;
    intensity: Uniform<number>;
}
export declare const lensFlareEffectOptionsDefaults: {
    blendFunction: BlendFunction;
    resolutionScale: number;
    width: number;
    height: number;
    intensity: number;
};
export declare class LensFlareEffect extends Effect {
    uniforms: UniformMap<LensFlareEffectUniforms>;
    readonly resolution: Resolution;
    readonly renderTarget1: WebGLRenderTarget;
    readonly renderTarget2: WebGLRenderTarget;
    readonly thresholdMaterial: DownsampleThresholdMaterial;
    readonly thresholdPass: ShaderPass;
    readonly blurPass: MipmapBlurPass;
    readonly preBlurPass: KawaseBlurPass;
    readonly featuresMaterial: LensFlareFeaturesMaterial;
    readonly featuresPass: ShaderPass;
    constructor(options?: LensFlareEffectOptions);
    private readonly onResolutionChange;
    initialize(renderer: WebGLRenderer, alpha: boolean, frameBufferType: TextureDataType): void;
    update(renderer: WebGLRenderer, inputBuffer: WebGLRenderTarget, deltaTime?: number): void;
    setSize(baseWidth: number, baseHeight: number): void;
    get intensity(): number;
    set intensity(value: number);
    get thresholdLevel(): number;
    set thresholdLevel(value: number);
    get thresholdRange(): number;
    set thresholdRange(value: number);
}