import * as THREE from "three";
import View3D from "../View3D";
declare class Renderer {
    private _view3D;
    private _renderer;
    private _canvas;
    private _clock;
    private _halfFloatAvailable;
    private _renderQueued;
    private _canvasSize;
    get canvas(): HTMLCanvasElement;
    get context(): WebGLRenderingContext;
    get threeRenderer(): THREE.WebGLRenderer;
    get defaultRenderLoop(): (delta: number) => void;
    get size(): {
        width: number;
        height: number;
    };
    get canvasSize(): THREE.Vector2;
    get capabilities(): {
        halfFloat: boolean;
        isWebGL2: boolean;
        precision: string;
        logarithmicDepthBuffer: boolean;
        maxTextures: number;
        maxVertexTextures: number;
        maxTextureSize: number;
        maxCubemapSize: number;
        maxAttributes: number;
        maxVertexUniforms: number;
        maxVaryings: number;
        maxFragmentUniforms: number;
        vertexTextures: boolean;
        floatFragmentTextures: boolean;
        floatVertexTextures: boolean;
    };
    constructor(view3D: View3D);
    destroy(): void;
    resize(): void;
    setAnimationLoop(callback: (delta: number, frame?: THREE.XRFrame) => void): void;
    stopAnimationLoop(): void;
    renderSingleFrame(immediate?: boolean): void;
    private _defaultRenderLoop;
    private _renderFrame;
    private _onContextLost;
    private _onContextRestore;
}
export default Renderer;