import { Pass } from 'three/examples/jsm/postprocessing/EffectComposer';
import * as THREE from 'three';
import { RenderPass } from 'three/examples/jsm/postprocessing/RenderPass';
/**
 * Interface for a render pass in a 3D scene. It defines the base structure for custom render passes,
 * with properties and methods that control rendering behavior.
 *
 * @abstract
 * @class IRenderPass
 */
export declare abstract class IRenderPass {
    clear?: boolean;
    clearDepth?: boolean;
    camera?: THREE.Camera;
    mainCamera?: THREE.Camera;
    /**
     * Constructs a new IRenderPass instance.
     *
     * @param {THREE.Scene} scene - The scene to which the render pass is applied.
     * @param {THREE.Camera} camera - The camera used for rendering.
     */
    constructor(scene: THREE.Scene, camera: THREE.Camera);
}
/**
 * Abstract base class for an effect pipeline. It defines the structure and required methods for managing
 * and rendering custom effect pipelines in a 3D scene.
 *
 * @abstract
 * @class EffectPipeline
 */
export declare abstract class EffectPipeline {
    renderer: THREE.Renderer;
    constructor(renderer: THREE.Renderer);
    abstract render(): void;
    abstract registerPass(pass: unknown, priority: number): void;
    abstract unregisterPass(pass: unknown): void;
    abstract setSize(width: number, height: number): any;
    /**
     * Creates a new render pass for the effect pipeline.
     *
     * @abstract
     * @param {THREE.Scene} scene - The scene for the render pass.
     * @param {THREE.Camera} camera - The camera for the render pass.
     * @return {IRenderPass} The created render pass.
     */
    abstract createRenderPass(scene: THREE.Scene, camera: THREE.Camera): IRenderPass;
}
/**
 * Default implementation of the EffectPipeline, utilizing Three.js's EffectComposer to manage and render passes.
 *
 * @class DefaultEffectPipeline
 * @extends {EffectPipeline}
 */
export declare class DefaultEffectPipeline extends EffectPipeline {
    private effectComposer;
    private _passes;
    /**
     * Creates a new render pass for the default effect pipeline.
     *
     * @param {THREE.Scene} scene - The scene for the render pass.
     * @param {THREE.Camera} camera - The camera for the render pass.
     * @return {IRenderPass} The created render pass.
     */
    createRenderPass(scene: THREE.Scene, camera: THREE.Camera): IRenderPass;
    constructor(renderer: THREE.Renderer);
    setSize(width: number, height: number): void;
    render(): void;
    registerPass(pass: RenderPass, priority: number): void;
    unregisterPass(pass: Pass): void;
}