import { Renderer } from "./Renderer";
import { Extensions } from './Extensions';
import { RenderableElement } from './RenderableElement';
import { Object3D } from './Object3D';
import { Camera } from './cameras/Camera';
import { RenderTarget } from './RenderTarget';
import { Vector2 } from './math/Vector2';
import { RenderFlow } from "./RenderFlow";
import { Pass } from "./Pass";
export declare enum CAMERA {
    PERSPECTIVE = 0,
    ORTHOGRAPHIC = 1
}
export interface rendererOptions {
    element: HTMLElement | HTMLCanvasElement | string;
    gl?: WebGLRenderingContext;
    cameraMode?: CAMERA;
}
export interface ContextAttributes {
    alpha?: boolean;
    depth?: boolean;
    stencil?: boolean;
    antialias?: boolean;
    premultipliedAlpha?: boolean;
    preserveDrawingBuffer?: boolean;
}
declare class GLWidget {
    renderer: Renderer;
    renderTarget: RenderTarget;
    element: HTMLElement;
    canvas: HTMLCanvasElement;
    gl: WebGLRenderingContext;
    contextAttributes: ContextAttributes;
    cameraMode: CAMERA;
    camera: Camera;
    pixelRatio: number;
    width: number;
    height: number;
    extensions: Extensions;
    opaqueList: Array<RenderableElement>;
    transparentList: Array<RenderableElement>;
    scene: Object3D;
    renderFlow: RenderFlow;
    background: any;
    stopped: boolean;
    constructor(options: rendererOptions, attributes?: ContextAttributes);
    add(element: RenderableElement): void;
    setRenderTarget(renderTarget: RenderTarget): void;
    getRenderTarget(): RenderTarget;
    setupMouse(): void;
    setPixelRatio(value: any): void;
    getPixelRatio(): number;
    setSize(width: any, height: any, updateStyle?: {}): void;
    setViewport(x: any, y: any, width: any, height: any): void;
    getSize(): Vector2;
    setCamera(): void;
    addPass(pass: Pass): void;
    renderPassFrame(): void;
    renderElement(element: RenderableElement, camera?: Camera): void;
    clear(): void;
    renderPass(animation?: Function): void;
    renderFrame(camera?: Camera): void;
    renderBackground(shader: any, animation?: Function | false, camera?: Camera): void;
    render(animation?: Function | false, camera?: Camera): void;
    dispose(): void;
}
export { GLWidget };