import { Camera } from "./camera";
import { PerspectiveCamera as ThreePerspectiveCamera } from "three";
/**
 * Perspective Camera for 3D Scenes
 */
export declare class PerspectiveCamera extends Camera {
    private _fov;
    private _width;
    private _height;
    private _near;
    private _far;
    private _requiresUpdate;
    private readonly _threeCamera;
    constructor(fov?: number, width?: number, height?: number, near?: number, far?: number);
    get threeCamera(): ThreePerspectiveCamera;
    get fov(): number;
    set fov(value: number);
    get width(): number;
    set width(value: number);
    get height(): number;
    set height(value: number);
    get near(): number;
    set near(value: number);
    get far(): number;
    set far(value: number);
    get aspect(): number;
    get isPerspective(): boolean;
    get isOrthographic(): boolean;
    update(_dt: number): void;
    onResize(newWidth: number, newHeight: number): void;
}