From t-jeffp@microsoft.com Tue Jun 16 12:27:58 1998 Received: from burdell.cc.gatech.edu (root@burdell.cc.gatech.edu [130.207.3.207]) by lennon.cc.gatech.edu (8.8.4/8.6.9) with ESMTP id MAA21797 for ; Tue, 16 Jun 1998 12:27:56 -0400 (EDT) Received: from wheaten.hitl.washington.edu (H29p1hlsquW5HJ1jnFr6vZggpHH7YtU6@[128.95.73.60]) by burdell.cc.gatech.edu (8.8.4/8.6.9) with ESMTP id MAA15224 for ; Tue, 16 Jun 1998 12:27:55 -0400 (EDT) Received: from mail2-b.microsoft.com (mail2-b.microsoft.com [131.107.3.124]) by wheaten.hitl.washington.edu (8.8.8/8.6.12) with ESMTP id JAA18690 for <3d-ui@hitl.washington.edu>; Tue, 16 Jun 1998 09:27:39 -0700 (PDT) Received: by mail2-b.microsoft.com with Internet Mail Service (5.5.2166.0) id ; Tue, 16 Jun 1998 09:27:09 -0700 Message-ID: <61AC5C9A4B9CD11181A200805F57CD5404326B5B@red-msg-44.dns.microsoft.com> From: Jeff Pierce To: 3d-ui@hitl.washington.edu Subject: RE: input devices Date: Tue, 16 Jun 1998 09:27:08 -0700 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2166.0) Content-Type: text/plain; charset="ISO-8859-1" Status: RO > -----Original Message----- > From: Chris Shaw [mailto:cdshaw@umbilicus.artsci.washington.edu] > Sent: Monday, June 15, 1998 5:38 PM > To: 3d-ui@hitl.washington.edu > Subject: Re: input devices >[...] > My answer for this is: The object in you hand gives you tactile > feedback of *an object*. This means you can slightly rotate the object > and have a good idea of its rotation just from tactile sense. > > The object rotation comes from finger abduction/adduction, > not whole-hand > rotation. No arguments here. My point is that sweeping statements like "gloves are better than buttons" or "buttons are better than gloves" are both false because they don't consider task. Buttons are useful when you want to do "object in hand" rotations because manipulating the buttons in your hand maps very naturally to manipulating an object in your hand, but has arbitrary mappings for other interactions (push button B to fly, button A to pick up objects). Pinch gloves map very naturally to interactions that require grasping, but require clutching for rotating objects (note that you can easily get around this by extruding a "rotating arm" with your second hand - a natural pinch gesture - and using that lever arm to rotate the object by moving one hand around the other). >[...] > It seems that you get to make your device choice once, and then the > interaction follows. Given pinch glove, what can you do in addition to > pickup, drop and Thwip!!! (Spider-man). How about 2 handed operations like scaling or winding up a toy soldier? Or "walking" yourself through space (SmartScene)? Yes, the pinch gloves suggest certain styles of interaction. However, for novice users that's an extremely good thing. > > The Head Crusher interaction technique is a lot more fun > with the gloves. > > They're ideally matched. My point exactly. Jeff