/**
 * Data for the indices of a Draco geometry
 */
export interface IndicesData {
    /**
     * The buffer containing the indices
     */
    buffer: ArrayBuffer;
    /**
     * Type of each index (gl.UNSIGNED_SHORT, gl.UNSIGNED_INT, ...)
     */
    gltype: number;
}
/**
 * Data for an attribute of a Draco geometry
 */
export interface IAttribute {
    /**
     * The buffer containing the attribute data
     */
    buffer: ArrayBuffer;
    /**
     * Attribute semantic (POSITION, NORMAL, TEXCOORD_0, ...)
     */
    semantic: string;
    /**
     * Type of each value in this buffer (5120 for BYTE, 5126 for FLOAT, ...)
     */
    componentType: number;
    /**
     * Number of components for this accessor type (1 for scalar, 3 for vec3, 16 for mat4, ...)
     */
    numComps: number;
    /**
     * Whether the attribute is normalized or not
     */
    normalized: boolean;
    /**
     * Offset in bytes from the beginning of the buffer
     */
    byteOffset: number;
    /**
     * Stride in bytes between values, if different values are interleaved in this buffer
     */
    _stride: number;
}
/**
 * Geometry decoded from Draco
 */
export interface IDracoGeometry {
    /**
     * The attributes of the geometry
     */
    attributes: IAttribute[];
    /**
     * The indices of the geometry
     */
    indices: IndicesData;
    /**
     * The number of indices
     */
    numIndices: number;
    /**
     * The number of vertices
     */
    numVertices: number;
}
export declare type Semantic = string;
/**
 * Request to Draco decoder
 */
export interface IDracoRequest {
    /**
     * Whole buffer containing the encoded geometry
     */
    buffer: ArrayBuffer;
    /**
     * The attributes to decode and their index in the encoded buffer
     */
    attributes?: Record<Semantic, number>;
}
/**
 * Response from Draco decoder
 */
export interface IDracoResponse {
    /**
     * Error message if the request failed
     */
    error?: string;
    /**
     * The decoded geometry if the request succeeded
     */
    geometry: IDracoGeometry;
}