From jjl@cs.brown.edu Thu May 7 23:56:35 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 XAA17511 for ; Thu, 7 May 1998 23:56:33 -0400 (EDT) Received: from wheaten.hitl.washington.edu (/McrJJoqOaATnPWDU7q76dg9NkTqefcz@[128.95.73.60]) by burdell.cc.gatech.edu (8.8.4/8.6.9) with ESMTP id XAA04639 for ; Thu, 7 May 1998 23:56:31 -0400 (EDT) Received: from cs.brown.edu (cs.cs.brown.edu [128.148.32.2]) by wheaten.hitl.washington.edu (8.8.8/8.6.12) with ESMTP id UAA09370 for <3d-ui@hitl.washington.edu>; Thu, 7 May 1998 20:56:07 -0700 (PDT) Received: from snark.cs.brown.edu (snark.cs.brown.edu [128.148.31.158]) by cs.brown.edu (8.8.5/8.7.1) with ESMTP id XAA12857 for <3d-ui@hitl.washington.edu>; Thu, 7 May 1998 23:55:36 -0400 (EDT) From: Joseph LaViola Received: (jjl@localhost) by snark.cs.brown.edu (8.8.5/BrownCS1.0) id XAA22343 for 3d-ui@hitl.washington.edu; Thu, 7 May 1998 23:55:35 -0400 (EDT) Message-Id: <199805080355.XAA22343@snark.cs.brown.edu> Subject: Various Issues To: 3d-ui@hitl.washington.edu Date: Thu, 7 May 1998 23:55:35 -0400 (EDT) X-Mailer: ELM [version 2.4ME+ PL37 (25)] MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Status: RO Hello, I have been reading the discussion and would like to add a few things to it. First, in regards to the mini-cave, this is an idea that definitely seems better than an HMD solution and will be less expensive than a regular CAVE. I believe that if you place two screens up against the corner of two walls and place a screen on the desk, the user can achieve a quality immersive experience. Head tracking still should be done to gain the correct perspective and the two wall screens should be about 3 feet by 5 feet. This screen space will take up enough of the users peripheral vision to make the display usable. Plus, this type of setup would allow for front projected screens which will enhance brightness and decrease pixel size for better resolution. Second, I have been thinking about the idea of applying the concept of design patterns to user interaction, specifically interaction in virtual environments. I realize that this is difficult task since we really do not have a cohesive framework for classifying various techniques and a good system or model for determining what techniques are best suited for any particular application. Any thoughts? Finally, I am very interested in 3D gesture based interaction. One of the metaphors I have been thinking about is called the 'wizard' or 'spellcater' metaphor. The idea is that since we are in an enviroment that is computer generated, we should be able to take advantage of what it can do for us. By using hand gestures as a mechanism to invoke 'spells', the user should be able to do things that cannot be done in the real world. I think the mindset that is taken in many attempts to develop new interaction techniques, especially in immersive VR, is to try to mimic the way people interact in the real world. For a long time, I thought this was the way to go but now I realize that the current technological state of the art in input devices and other required technologies are just not good enough to allow for interaction that mimics the way people interact in the real world. I believe that if we start thinking about interaction with the wizard mentality then new interaction techniques could be developed that are best suited for virtual environments mainly because they cannot be done in the real world. Any thoughts on this? Joe LaViola