import { BaseModelLoader, THREE, type ModelLoadContext, type ModelLoadFromBufferContext } from "@x-viewer/core";
export interface IfcWebModelLoaderOptions {
    /** Folder URL ending with `/`, used by `IfcAPI.SetWasmPath`. */
    wasmBaseUrl: string;
    /** Full URL to `web-ifc-api-iife.js`. */
    scriptUrl: string;
}
export declare class IfcWebModelLoader extends BaseModelLoader {
    private readonly options;
    readonly id = "loader.plugin.ifc";
    readonly priority = 10;
    readonly formats: readonly ["ifc"];
    private static readonly apiByKey;
    constructor(options: IfcWebModelLoaderOptions);
    load(ctx: ModelLoadContext): Promise<THREE.Object3D>;
    loadFromBuffer(ctx: ModelLoadFromBufferContext): Promise<THREE.Object3D>;
    private static apiCacheKey;
    private static getOrCreateApi;
    private static createIfcApi;
    private buildScene;
    private buildIfcMeshGroup;
}