ocr: Rotation Controllers by Michael Lhen This application demonstrates the 3D virtual rotational controllers describedin the paper A Study in nteractive 3D otation Using 2D Control Devices" by Michael Chen, S.Joy Mounttord & Abigall Sellen in the Siggraph '88 Proceedings (ACM computer Graphics, Vol22, *4, August 1988). This program is copyrighted, but may be distributed freely. If you like this program, why not make a $5 donation to your ravorite charity. comments are welcomed. IC can be reached at Email: cheneapple.com AppleLink: CHEN.M O Apple Computer, Inc. 1989