From: jbalgley@bbn.com (Jon Balgley) Subject: Hidden-line removal program Organization: Bolt Beranek and Newman (BBN) Lines: 11 NNTP-Posting-Host: labs-n.bbn.com I'm posting this for a friend: I have an immediate need for a polygon-based hidden-line removal program. I can deal with any input/output format, but I need to be able to do perspective views in any orientation and range. Is there a public-domain hidden-line program around? It seems like there should be, but I have not been able to locate one. Email replies and I will summarize. Thanks