import type { Synth } from "../synth";
import { Buffer, BufferProps } from "./buffer";
import { Shader } from "./shader";
export declare const GL_POINTS = 0;
export declare const GL_LINES = 1;
export declare const GL_LINE_LOOP = 2;
export declare const GL_LINE_STRIP = 3;
export declare const GL_TRIANGLES = 4;
export declare const GL_TRIANGLE_STRIP = 5;
export declare const GL_TRIANGLE_FAN = 6;
export interface VAOProps {
    name?: string;
    attrs?: Record<string, Buffer | BufferProps>;
    cells?: Buffer | BufferProps;
    elements?: number;
    count?: number;
    rasterizerDiscard?: boolean;
    primitive?: number;
    instances?: number;
}
export declare const PRIMITIVE_MAP: {
    triangles: number;
    points: number;
    lines: number;
    line_loop: number;
    line_strip: number;
    triangle_strip: number;
    triangle_fan: number;
};
export declare class VAO {
    synth: Synth;
    name: string;
    attributes: Record<string, Buffer>;
    indices?: Buffer;
    _elements: number;
    _count: number;
    _primitive: number;
    _instances: number;
    _rasterizerDiscard: boolean;
    buffer: WebGLVertexArrayObject;
    constructor(synth: Synth, props?: VAOProps & {
        primitive?: keyof typeof PRIMITIVE_MAP | number;
    });
    hasAttr(name: string): boolean;
    attr(name: string, attr: Buffer | BufferProps): this;
    attrs(attrs: Record<string, Buffer | BufferProps>): this;
    deleteAttr(name: string, deleteBuffer?: boolean): this;
    cells(cells: Buffer | BufferProps): this;
    elements(elements: number): this;
    count(count: number): this;
    primitive(primitive: number): this;
    rasterizerDiscard(rasterizerDiscard?: boolean): this;
    instances(instances?: number): this;
    bindVertexAttrs(shader: Shader): this;
    clear(): void;
    clone(): VAO;
}