问TREE.OBJLoader2.WWOBJLoader 2的纹理和材料加载问题

EN

reader.addEventListener( 'load', function ( event ) {

    var uint8ArrayNew  = new Uint8Array(event.target.result);
    objBuffer = uint8ArrayNew;

    initPostGL();
    prepData = new THREE.OBJLoader2.WWOBJLoader2.PrepDataArrayBuffer(
        workerInput.obj,    // overall model name
        objBuffer,          // OBJ file as arrayBuffer
        workerInput.path,   // Texture path
        mtlString           // MTL as string
    );

    objectGroup = new THREE.Group();
    objectGroup.name = workerInput.obj;

    prepData.setSceneGraphBaseNode( objectGroup );
    prepData.setStreamMeshes( true );
    wwObjLoader2.setDebug(false);
    wwObjLoader2.prepareRun( prepData );
    wwObjLoader2.run();

}, false );
reader.readAsArrayBuffer( objectAsBuffer );