From: JC Verlinden Subject: Re: TECH: Ideas for cheap tracking systems, HMDs,... Organization: Delft University of Technology In article <2ajk6u$a84@news.u.washington.edu>, joachim lous wrote: >3 strings/wires/whatever connected from, say, the top of your head to >3 different self-retracting 'yo-yos' in the roof/walls. It should be >possible to measure how much of the string is out at any time, for >instance with variable resistors that rotate with the reels. Wooooo! What's going to happen if you twist your head? (I don't like the idea of getting strangled by my tracking system). And I think we really need a system that measures _both_ position and orientation... -jouke