}
}
else {
trimeshShape = new BvhTriangleMeshShape(indexVertexArrays, useQuantizedAabbCompression, false);
OptimizedBvh bvh = null;
try {
ObjectInputStream in = new ObjectInputStream(new GZIPInputStream(new FileInputStream(new File("bvh.bin"))));
bvh = (OptimizedBvh)in.readObject();
in.close();
}