/*!
 * Copyright (c) Microsoft Corporation.
 * Licensed under the MIT License.
 */
/// <reference types="webxr" />
import { mat4 } from "gl-matrix";
import { Main } from "../main.js";
import { Core } from "../../../main.js";
import { IImageVisual, ImageBase } from "../../../components/image.js";
export declare class ImageVisual implements IImageVisual {
    protected _isInitialized: boolean;
    protected _image: ImageBase;
    protected _gl: WebGLRenderingContext;
    protected _core: Core;
    protected _main: Main;
    protected _vertexBuffer: WebGLBuffer;
    protected _indexBuffer: WebGLBuffer;
    protected _hasChanged: boolean;
    isVisible: boolean;
    viewports: DOMRect[];
    viewportOffset: number;
    viewportCount: number;
    mMatrix: mat4;
    mvMatrices: mat4[];
    vMatrices: mat4[];
    inverseVMatrices: mat4[];
    pMatrices: mat4[];
    texture: WebGLTexture;
    framebuffers: WebGLFramebuffer[];
    pickFramebuffer: WebGLFramebuffer;
    pickVMatrix: mat4;
    pickPMatrix: mat4;
    isPickingEnabled: boolean;
    get isInitialized(): boolean;
    get image(): ImageBase;
    constructor(core: Core, main: Main, image: ImageBase);
    initializeContext(gl: WebGLRenderingContext): void;
    update(elapsedTime: number): void;
    render(elapsedTime: number, xrFrame?: XRFrame): void;
}