/**
 * A shader effect that desaturates (grayscales) the sprite.
 * Commonly used for disabled states, death effects, or petrification.
 * @category Effects
 * @see {@link Renderable#addPostEffect} for usage
 * @example
 * // full grayscale
 * mySprite.addPostEffect(new DesaturateEffect(renderer));
 * @example
 * // partial desaturation (50%)
 * mySprite.addPostEffect(new DesaturateEffect(renderer, { intensity: 0.5 }));
 */
export default class DesaturateEffect extends ColorMatrixEffect {
    /**
     * @param {WebGLRenderer|WebGPURenderer|CanvasRenderer} renderer - the current renderer instance
     * @param {object} [options] - effect options
     * @param {number} [options.intensity=1.0] - desaturation intensity (0.0 = full color, 1.0 = grayscale)
     */
    constructor(renderer: WebGLRenderer | WebGPURenderer | CanvasRenderer, options?: {
        intensity?: number | undefined;
    });
    intensity: number;
    /**
     * set the desaturation intensity
     * @param {number} value - desaturation intensity (0.0 = full color, 1.0 = grayscale)
     */
    setIntensity(value: number): void;
}
import ColorMatrixEffect from "./colorMatrix.js";
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