export type BufferUsage = GLenum;
export interface VertexAttributeLayout {
    readonly index: number;
    readonly size: number;
    readonly type: GLenum;
    readonly normalized?: boolean;
    readonly stride?: number;
    readonly offset?: number;
    readonly divisor?: number;
}
export declare class VertexBuffer {
    readonly gl: WebGL2RenderingContext;
    readonly buffer: WebGLBuffer;
    readonly target: GLenum;
    constructor(gl: WebGL2RenderingContext, usage?: BufferUsage, target?: GLenum);
    bind(): void;
    upload(data: BufferSource, usage?: BufferUsage): void;
    update(data: BufferSource, offset?: number): void;
    dispose(): void;
}
export declare class IndexBuffer extends VertexBuffer {
    constructor(gl: WebGL2RenderingContext, usage?: BufferUsage);
}
export declare class VertexArray {
    readonly gl: WebGL2RenderingContext;
    readonly vao: WebGLVertexArrayObject;
    constructor(gl: WebGL2RenderingContext);
    bind(): void;
    configureAttributes(layouts: readonly VertexAttributeLayout[], buffer?: VertexBuffer): void;
    dispose(): void;
}
export interface TextureParameters {
    readonly wrapS?: GLenum;
    readonly wrapT?: GLenum;
    readonly minFilter?: GLenum;
    readonly magFilter?: GLenum;
}
export declare class Texture2D {
    readonly gl: WebGL2RenderingContext;
    readonly texture: WebGLTexture;
    readonly target: GLenum;
    width: number;
    height: number;
    constructor(gl: WebGL2RenderingContext, target?: GLenum);
    bind(unit?: number): void;
    setParameters(params: TextureParameters): void;
    upload(width: number, height: number, data: TexImageSource | ArrayBufferView | null): void;
    uploadImage(level: number, internalFormat: GLenum, width: number, height: number, border: number, format: GLenum, type: GLenum, data: TexImageSource | ArrayBufferView | null): void;
    dispose(): void;
}
export declare class TextureCubeMap {
    readonly gl: WebGL2RenderingContext;
    readonly texture: WebGLTexture;
    readonly target: GLenum;
    constructor(gl: WebGL2RenderingContext);
    bind(unit?: number): void;
    setParameters(params: TextureParameters): void;
    uploadFace(faceTarget: GLenum, level: number, internalFormat: GLenum, width: number, height: number, border: number, format: GLenum, type: GLenum, data: ArrayBufferView | null): void;
    dispose(): void;
}
export declare class Framebuffer {
    readonly gl: WebGL2RenderingContext;
    readonly framebuffer: WebGLFramebuffer;
    constructor(gl: WebGL2RenderingContext);
    bind(target?: GLenum): void;
    attachTexture2D(attachment: GLenum, texture: Texture2D, level?: number): void;
    dispose(): void;
}
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