import GlslCanvas from 'glslCanvas';

type PropertyName = 'animationSpeed' | 'direction' | 'ratio' | 'scale' | 'scrollSpeed' | 'strength';
interface WaterRipperOptions {
    canvas: HTMLCanvasElement | string;
    imageURL: string;
    maskURL?: string;
    normalMapURL?: string;
    animationSpeed?: number;
    scale?: number;
    scrollSpeed?: number;
    direction?: number;
    ratio?: number;
    strength?: number;
}
declare class WaterRipple {
    _animationID: number;
    _time: number;
    _glsl: GlslCanvas;
    constructor(options: WaterRipperOptions);
    private _loadImage;
    animate(): void;
    stop(): void;
    destroy(): void;
    setProperty(propName: PropertyName, value: any): void;
}

export { WaterRipple };