/**
 * Minimal glTF 2.0 / GLB parser.
 * Handles the binary container format and accessor/bufferView resolution.
 * No external dependencies.
 */
export interface GltfAccessor {
    bufferView?: number;
    byteOffset?: number;
    componentType: number;
    normalized?: boolean;
    count: number;
    type: string;
    min?: number[];
    max?: number[];
}
export interface GltfBufferView {
    buffer: number;
    byteOffset?: number;
    byteLength: number;
    byteStride?: number;
}
export interface GltfBuffer {
    byteLength: number;
    uri?: string;
}
export interface GltfImage {
    bufferView?: number;
    mimeType?: string;
    uri?: string;
}
export interface GltfTexture {
    source?: number;
}
export interface GltfMaterialPbr {
    baseColorFactor?: number[];
    baseColorTexture?: {
        index: number;
    };
    metallicFactor?: number;
    roughnessFactor?: number;
}
export interface GltfMaterial {
    name?: string;
    pbrMetallicRoughness?: GltfMaterialPbr;
    alphaMode?: string;
    alphaCutoff?: number;
}
export interface GltfPrimitive {
    attributes: Record<string, number>;
    indices?: number;
    material?: number;
}
export interface GltfMesh {
    name?: string;
    primitives: GltfPrimitive[];
}
export interface GltfNode {
    name?: string;
    mesh?: number;
    skin?: number;
    children?: number[];
    translation?: number[];
    rotation?: number[];
    scale?: number[];
    matrix?: number[];
}
export interface GltfSkin {
    name?: string;
    inverseBindMatrices?: number;
    skeleton?: number;
    joints: number[];
}
export interface GltfAnimationSampler {
    input: number;
    output: number;
    interpolation?: string;
}
export interface GltfAnimationChannel {
    sampler: number;
    target: {
        node?: number;
        path: string;
    };
}
export interface GltfAnimation {
    name?: string;
    channels: GltfAnimationChannel[];
    samplers: GltfAnimationSampler[];
}
export interface GltfScene {
    nodes?: number[];
}
export interface GltfJson {
    asset: {
        version: string;
    };
    accessors?: GltfAccessor[];
    bufferViews?: GltfBufferView[];
    buffers?: GltfBuffer[];
    images?: GltfImage[];
    textures?: GltfTexture[];
    materials?: GltfMaterial[];
    meshes?: GltfMesh[];
    nodes?: GltfNode[];
    scenes?: GltfScene[];
    scene?: number;
    skins?: GltfSkin[];
    animations?: GltfAnimation[];
}
/** Parsed glTF document with resolved binary buffers. */
export interface GltfDocument {
    json: GltfJson;
    buffers: ArrayBuffer[];
}
/** Parse a GLB binary container into JSON + binary buffer(s). */
export declare function parseGlb(data: ArrayBuffer): GltfDocument;
/** Parse a standalone .gltf JSON file with external buffer(s). */
export declare function parseGltfJson(json: GltfJson, buffers?: ArrayBuffer[]): GltfDocument;
/** Read a typed array from an accessor. */
export declare function readAccessor(doc: GltfDocument, accessorIndex: number): Float32Array | Uint16Array | Uint32Array | Int16Array | Uint8Array | Int8Array;
/** Read raw bytes from a bufferView (for embedded images). */
export declare function readBufferView(doc: GltfDocument, bufferViewIndex: number): Uint8Array;
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