"If you put the watermark as extra vertices don't used by the model the watermark will be destroyed by any mesh cleaner software." What exactly does this mean. I am busy (with Ockham) trying to find a way to include extra vertice information in a model that can be manipulated by Python, but what will clean that information? Poser? UVMapper? I need to know, before I do all the work and then realize that the extra vertices will be "cleaned" whenever someone uses the model in a particular way.