[sldev] Re: Hooking the wii up to SL for head (body?) tracking

[Tobias Lang]

Hi,

yes, this particular head tracking method is acutally pretty neat. In this
context it might be interesting to point to our own research project, which
uses Second Life for Augmented Reality (AR). For people who don't know AR
- it is a technology which incorporates virtual graphics to a real
environment. AR also relies on headtracking (more specifically). In our
setup, we use live video and a 6 Degree-of-Freedom tracker to blend Second
Life graphics perspectively correct within a physical room. Please take a
look at http://arsecondlife.gvu.gatech.edu for more information. The Wii
tracking setup shown in the video could actually be integrated pretty easy
into our modified SL client - thanks for sharing it.

-Tobias

On Dec 23, 2007 6:35 PM, Tim Shephard <tshephard at gmail.com> wrote:

> "it would be an interesting effect if the client could use this
> to project where you are in the room relative to your avatar's
> location in SecondLife in mouselook."
>
> Sorry, I meant track your position relative to some fixed point in the
> room (the "window" Mr Lee talks about..).    I guess you could set it
> up so the window moved relative to your avatar when you want to move
> 'locales' .. but you'd probably lose the 3d effect during that period
> of time.
>
>
>
> On Dec 23, 2007 3:29 P Tim Shephard <tshephard at gmail.com> wrote:
> > A pretty interesting project:
> >
> > http://www.youtube.com/watch?v=Jd3-eiid-Uw
> >
> > My guess is that if you projected a very large secondlife screen onto
> > a wall, it would be an interesting effect if the client could use this
> > to project where you are in the room relative to your avatar's
> > location in SecondLife in mouselook.
> >
> > I don't think this does much for tracking the angle of your head
> > relative to your body, so you'd probably have to stiff neck it.  Maybe
> > there is a way to do that with a third infrared LED (the wii can track
> > up to 4, apparently).   If not, there is a fascinating use of a
> > gyroscope which might be of use:
> >
> >
> http://video.google.com/videoplay?docid=-2237947353453839215&q=rc+plane+vr+goggles&total=8&start=0&num=10&so=0&type=search&plindex=0
> >
> > Anyhow, cool stuff.
> >
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