Path: utzoo!utgpu!news-server.csri.toronto.edu!rpi!zaphod.mps.ohio-state.edu!mips!spool.mu.edu!uunet!bonnie.concordia.ca!IRO.UMontreal.CA!pinard From: pinard@IRO.UMontreal.CA (Francois Pinard) Newsgroups: comp.graphics.visualization Subject: Re: Real 3D PHOTOCOPY - black & white - no glasses... Message-ID: Date: 30 Apr 91 15:39:48 GMT References: <4354.2816ba40@iccgcc.decnet.ab.com> <1991Apr29.225451.24699@cs.umn.edu> <1991Apr30.112127.2524@ncsu.edu> Sender: news@IRO.UMontreal.CA Organization: Universite' de Montre'al Lines: 18 In-Reply-To: barham@adm.csc.ncsu.edu's message of 30 Apr 91 11:21:27 GMT In article <1991Apr30.112127.2524@ncsu.edu> barham@adm.csc.ncsu.edu (Paul T. Barham) writes: What you saw may have actually have been an autostereogram. On a sligntly different topic, the term `3D photocopy' reminds me of an apparitus which is used for blind people, able to reproduce a 3D objects, given certain constraints. You put the object in the machine, and a sheet of special plastic over it, and you close the door. The plastic is heated (not much) and pumped down over the object, molding it in fact. This was used to supplement audio tapes of technical books with the technical drawings. The drawings were reproduced with wires, and then duplicated through the 3D photocopier, so blind people could better follow and understand the spoken descriptions. -- Franc,ois Pinard ``Vivement GNU!'' pinard@iro.umontreal.ca (514) 588-4656 cp 886 L'Epiphanie (Qc) J0K 1J0 ...!uunet!iros1!pinard