/*!
 * Copyright (c) Microsoft Corporation.
 * Licensed under the MIT License.
 */
import { mat4 } from "gl-matrix";
import { Core } from "../../../main.js";
import { Main } from "../main.js";
export declare class Resources {
    static readonly glsl: {
        [key: string]: string;
    };
    private _gl;
    currentProgram: WebGLProgram;
    currentShader: ShaderBase;
    ANGLE_instanced_arrays: ANGLE_instanced_arrays;
    OES_standard_derivatives: OES_standard_derivatives;
    EXT_frag_depth: EXT_frag_depth;
    WEBGL_lose_context: WEBGL_lose_context;
    OES_element_index_uint: OES_element_index_uint;
    private framebuffer;
    bindFramebuffer(framebuffer: WebGLFramebuffer): void;
    initializeContext(gl: WebGLRenderingContext): void;
}
export declare abstract class ShaderBase {
    protected _core: Core;
    protected _main: Main;
    protected _gl: WebGLRenderingContext;
    protected _program: WebGLProgram;
    protected _haveBuffersChanged: boolean;
    protected _haveTexturesChanged: boolean;
    protected _vertexBuffer: WebGLBuffer;
    protected _indexBuffer: WebGLBuffer;
    protected _mMatrixUniform: WebGLUniformLocation;
    protected _vMatrixUniform: WebGLUniformLocation;
    protected _pMatrixUniform: WebGLUniformLocation;
    protected _inverseMMatrixUniform: WebGLUniformLocation;
    protected _inverseVMatrixUniform: WebGLUniformLocation;
    protected _inversePMatrixUniform: WebGLUniformLocation;
    protected _isLoaded: boolean;
    protected _vsSource: string;
    protected _fsSource: string;
    protected _isInitialized: boolean;
    mMatrix: mat4;
    vMatrix: mat4;
    pMatrix: mat4;
    inverseVMatrix: mat4;
    inverseMMatrix: mat4;
    inversePMatrix: mat4;
    isPickShader: boolean;
    get isInitialized(): boolean;
    get vertexBuffer(): WebGLBuffer;
    set vertexBuffer(value: WebGLBuffer);
    get indexBuffer(): WebGLBuffer;
    set indexBuffer(value: WebGLBuffer);
    constructor(core: Core, main: Main);
    initializeContext(gl: WebGLRenderingContext): void;
    protected _createProgram(vs: WebGLShader, fs: WebGLShader): WebGLProgram;
    protected _compileShader(source: string, type: number): WebGLShader;
    protected _removeDirective(shaderSource: string, directive: string): string;
    prepare(): void;
    apply(): void;
    applyModel(): void;
    applyView(): void;
    enableProgram(program: WebGLProgram): void;
    updateBuffers(): void;
    updateTextures(): void;
    disableProgram(): void;
    protected _shaderFromFile(vsName: string, fsName: string, callback: {
        (vsSource: string, fsSource: string): void;
    }): void;
    protected _shaderFromUrl(vsName: string, fsName: string, callback: {
        (vsSource: string, fsSource: string): void;
    }): void;
    private _sourceFromUrl;
    private _includesFromFile;
    private _includesFromUrl;
}