import { ParticleConfig } from "../../effect";
import { Particle } from "../../particle";
import { Renderer } from "../renderer";
export declare class CanvasRenderer extends Renderer {
    protected root: HTMLCanvasElement;
    protected config: ParticleConfig;
    private ctx;
    constructor(root: HTMLCanvasElement, config: ParticleConfig);
    resize(): void;
    render(particles: Particle[], config: ParticleConfig): void;
    private singleDraw;
    private _singleDraw;
    private updateDrawStyle;
    /**
     * We can improve drawing performance if the user sets the color
     */
    private batchDraw;
}