import * as THREE from 'three';
export declare class TouchTexture {
    private size;
    private maxAge;
    private radius;
    private trail;
    private canvas;
    private ctx;
    texture: THREE.Texture;
    constructor();
    initTexture(): void;
    update(): void;
    clear(): void;
    addTouch(_x: number, _y: number): void;
    drawTouch(point: any): void;
    private easeOutSine;
}