public string SerializeScene()
{
PrepareData();
if (!ValidateScene())
return "";
Hashtable htScene = new Hashtable();
htScene["objects"] = SerializationUtils.ToJSON(exportableObjects.ToArray());
htScene["renderOptions"] = SerializationUtils.ToJSON(options);
htScene["assets"] = SerializationUtils.ToJSON(assets.ToArray());
htScene["mainCameraId"] = mainCameraId;
InjectReferenceIDs(htScene);
return SerializationUtils.FormatJson(htScene.encodeToJSON());
}