import type { CompiledSceneArtifact, SourceConversionReceipt, Vec3 } from './types';
type AxisMapping = (source: Vec3) => Vec3;
export type ObjSourcePart = {
    /** Distinguishes this part's materials from every other part's. */
    name: string;
    obj: Buffer;
    texture?: {
        bytes: Buffer;
        mimeType: 'image/jpeg' | 'image/png';
    };
};
export declare function compileObjGlb(input: {
    sourceName: string;
    obj: Buffer;
    localOrigin: Vec3;
    receipt: SourceConversionReceipt;
    texture?: {
        bytes: Buffer;
        mimeType: 'image/jpeg' | 'image/png';
    };
    axisMapping?: AxisMapping;
}): Promise<CompiledSceneArtifact>;
/**
 * Compile one GLB from several source OBJs that share a coordinate space.
 *
 * A photogrammetry quadtree stores each refinement level as N sibling meshes,
 * each with its OWN texture atlas -- level 18 of a Helsinki tile is 16 pieces,
 * not one. Compiling a single piece throws away fifteen sixteenths of the tile,
 * so the only way to serve a deeper level as one resource is to carry every
 * sibling and its texture into the same document. Materials are namespaced per
 * part, because sibling OBJs reuse the same `usemtl` names against different
 * atlases and merging them would paint one part with another's texture.
 */
export declare function compileObjParts(input: {
    sourceName: string;
    parts: ObjSourcePart[];
    localOrigin: Vec3;
    receipt: SourceConversionReceipt;
    axisMapping?: AxisMapping;
}): Promise<CompiledSceneArtifact>;
export {};