From kenh@microsoft.com Wed May 26 16:56:24 1999 Received: from burdell.cc.gatech.edu (root@burdell.cc.gatech.edu [130.207.3.207]) by lennon.cc.gatech.edu (8.9.1/8.9.1) with ESMTP id QAA29726 for ; Wed, 26 May 1999 16:56:23 -0400 (EDT) Received: from mail2.microsoft.com (mail2.microsoft.com [131.107.3.124]) by burdell.cc.gatech.edu (8.9.1/8.9.1) with ESMTP id QAA18114 for ; Wed, 26 May 1999 16:56:22 -0400 (EDT) Received: by mail2.microsoft.com with Internet Mail Service (5.5.2524.0) id ; Wed, 26 May 1999 13:55:50 -0700 Message-ID: <5F68209F7E4BD111A5F500805FFE35B90D786B27@RED-MSG-54> From: Ken Hinckley To: "'bowman@cc.gatech.edu'" , 3d-ui@hitl.washington.edu Subject: RE: Virtual vs. Real Manipulation Date: Wed, 26 May 1999 13:55:39 -0700 X-Mailer: Internet Mail Service (5.5.2524.0) Status: RO The guys who did the Virtual Workbench (Poston & Serra) talk about this as an evaluation task (the virtual version of the task, that is). I think it was in their CACM article... 1996 or 97? K. Ken Hinckley Microsoft Research One Microsoft Way Redmond, WA 98052 (425) 703-9065 kenh@microsoft.com > -----Original Message----- > From: bowman@cc.gatech.edu [mailto:bowman@cc.gatech.edu] > Sent: Wednesday, May 26, 1999 12:27 PM > To: 3d-ui@hitl.washington.edu > Subject: Re: Virtual vs. Real Manipulation > > > > 2. Path tracing could similarly be done using a > "wire-and-loop" type of > > electric system. (I remember reading a paper on a virtual > system that did > > this...anyone have the reference?) > > Don't know if this is the paper you're thinking of, but the > paper titled "Effects of Network Characteristics on Human > Performance in a Collaborative Virtual Environment" by Park > & Kenyon at VR '99 this year used a task like this, except > that it was done by two distributed users. > > Robert's lists of tasks bring up an interesting question. The > "Operation" task and the wire-and-loop task are both very difficult > even in the real world. Will VEs be closer to real-world performance > on these difficult motor tasks, or on very simple motor tasks? > > I think both sides of this could be argued. On the one hand, easy > tasks require little accuracy and are very forgiving, thus lessening > the effects of tracker jitter, bad depth perception, etc. On the > other hand, people generally do the very difficult tasks extremely > slowly, which could lessen the effects of lag. Thoughts? > > --Doug > > P.S. Robert, my defense is tomorrow - thanks for asking - I'll > let you know how it went. > -- > Doug Bowman, Ph.D. Candidate > College of Computing, GVU Center, Georgia Tech > Room 388 CRB, (404) 894-5104 > bowman@cc.gatech.edu > http://www.cc.gatech.edu/~bowman/ >