// If content couldn't be loaded, try to load model as a zipped file
ZipInputStream zipIn = null;
try {
URLContent urlContent = (URLContent)modelContent;
// Open zipped stream
zipIn = new ZipInputStream(urlContent.openStream());
// Parse entries to see if a obj file is readable
for (ZipEntry entry; (entry = zipIn.getNextEntry()) != null; ) {
try {
String entryName = entry.getName();
// Ignore directory entries and entries starting by a dot