import * as THREE from 'three';
import { convertToTexture } from 'three/tsl';
import { TempNode } from 'three/webgpu';
import { RetroPassParameters } from '../../models/RetroPassParameters';
/**
 * TSL node that applies a retro-style post-processing effect with
 * pixelation, color quantization, and ordered (Bayer) dithering.
 *
 * Designed for use with Three.js WebGPURenderer and PostProcessing.
 *
 * @augments TempNode
 * @example
 * import { pass } from 'three/tsl';
 * import { retroPass } from '@mesmotronic/three-retropass/webgpu';
 *
 * const scenePass = pass(scene, camera);
 * const postProcessing = new PostProcessing(renderer);
 * postProcessing.outputNode = retroPass(scenePass.getTextureNode(), { colorCount: 16 });
 */
export declare class RetroPassNode extends TempNode {
    #private;
    static get type(): string;
    /** Input texture node (the scene render) */
    textureNode: ReturnType<typeof convertToTexture>;
    /** @private Uniform for retro resolution (e.g. 320×200) */
    private _resolution;
    /** @private Uniform for dithering on/off */
    private _dithering;
    /** @private Uniform for dithering strength */
    private _ditheringOffset;
    /** @private Uniform for number of colors */
    private _colorCount;
    /** @private Uniform for whether this is a quantized (cube) palette */
    private _isQuantized;
    /** @private TextureNode for the palette */
    private _colorTextureNode;
    /** @private Uniform for whether to invert the image */
    private _inverted;
    /**
     * @param textureNode - The texture node that provides the input image
     * @param parameters  - Configuration parameters for the retro effect
     */
    constructor(textureNode: ReturnType<typeof convertToTexture>, { colorCount, colorPalette, dithering, ditheringOffset, autoDitheringOffset, pixelRatio, resolution, autoResolution, }?: RetroPassParameters);
    get resolution(): THREE.Vector2;
    set resolution(value: THREE.Vector2);
    get autoResolution(): boolean;
    set autoResolution(value: boolean);
    get pixelRatio(): number;
    set pixelRatio(value: number);
    get colorCount(): number;
    set colorCount(value: number);
    get colorPalette(): THREE.Color[];
    set colorPalette(colors: THREE.Color[]);
    get dithering(): boolean;
    set dithering(value: boolean);
    get ditheringOffset(): number;
    set ditheringOffset(value: number);
    get autoDitheringOffset(): boolean;
    set autoDitheringOffset(value: boolean);
    get inverted(): boolean;
    set inverted(value: boolean);
    /**
     * Called by the renderer / PostProcessing pipeline when the output size
     * changes. Mirrors the `setSize` API from the WebGL ShaderPass.
     */
    setSize(width: number, height: number): void;
    /**
     * Builds the TSL node graph implementing the retro effect.
     */
    setup(): import("three/webgpu").Node<"vec4">;
}
/**
 * TSL convenience function for creating a RetroPassNode.
 *
 * @tsl
 * @function
 * @param node       - Input node (scene render texture or any vec4 node)
 * @param parameters - Retro effect configuration
 * @returns A node-wrapped RetroPassNode ready for use in PostProcessing
 *
 * @example
 * import { pass } from 'three/tsl';
 * import { retroPass } from '@mesmotronic/three-retropass/webgpu';
 *
 * const scenePass = pass(scene, camera);
 * postProcessing.outputNode = retroPass(scenePass.getTextureNode(), {
 *   colorCount: 4,
 *   dithering: true,
 * });
 */
export declare const retroPass: (node: Parameters<typeof convertToTexture>[0], parameters?: RetroPassParameters) => RetroPassNode;
export default RetroPassNode;