---------- Initial Header ----------- >From : [EMAIL PROTECTED] To : "users" [email protected] Cc : Date : Wed, 23 Nov 2005 15:07:55 -0700 Subject : Re: [Opensg-users] CAVE navigation
> > Hi Antonio, > > On Tue, 2005-11-22 at 09:23 +0100, antonio_lioy wrote: > > > > thanks, but where should I put the camera to see all the content of > > the scene on a single flat screen? Should I simply put the camera a > > little back or should I use some esotherical projection to see all the > > scene like an external viewer would? > > that depends on what you want to see and your scene. You can't really > given an external viewer the same view somebody has in the Cave. You > could just show the same image the person sees in hte Cave by showing > both (or however many you have) walls, but it will look very distorted. Uhm, OK... So at the end to have a nice view of the scene on a single screen It's probably better move the camera back... > > > I just set an external client window as the the MultiDisplayWindow client > > window > > OK. > > On Tue, 2005-11-22 at 09:44 +0100, antonio_lioy wrote: > > > > What do you exactly mean with discontinuity? Anyway, I've got a two > > Wall cave (with a central wall and a left one). The coords are : > > Left Wall (-100,95,100)(-100,-95,-100)(-100,95,-100)(-100,95,100) > > Front Wall(-100,-95,-100)(100,-95,-100)(100,95,-100)(-100,95-100) > > units are cm, our tracking system reference frame is in the center of > > our cave. > > Hm, are those really the coordinates you use? The order you give for the > left wall is upper left, lower right, upper right, lower left. The > ProjectionDecorator needs lower left, lower right, upper right, upper > left. > SORRY, It was a nasty typing error... the coordinates I use are > > Left Wall (-100,-95,100)(-100,-95,-100)(-100,95,-100)(-100,95,100) > > Front Wall(-100,-95,-100)(100,-95,-100)(100,95,-100)(-100,95-100) Now the order should be the right one but the problem persist. FOR now the HUGE problem is to make things look good... We have no tracking of the head at the moment... > > What do you mean? How should I correct the tracking position? > > The tracker doesn't give you the eye position, you need to offset the > position you get from the tracker so that the position used in OpenSG is > the position between the eyes (cyclops eye). One way to estimate this > offset is to use the head tracker at a central position, record the > tracking data, turn off updates of the head tracker Node in OpenSG, move > the head so that the image looks right, record the tracker data, and > subtract the two tracker sets to get the offset. It's not perfectly > accurate, but it should be good enough for getting started. > > Hope it helps > > Dirk THANKS A LOT FOR YOUR HELP... BUT I REALLY NEED A LITTLE MORE... Esimio prof. Antonio Lioy > > > ------------------------------------------------------- > This SF.net email is sponsored by: Splunk Inc. Do you grep through log files > for problems? Stop! Download the new AJAX search engine that makes > searching your log files as easy as surfing the web. DOWNLOAD SPLUNK! > http://ads.osdn.com/?ad_id=7637&alloc_id=16865&op=click > _______________________________________________ > Opensg-users mailing list > [email protected] > https://lists.sourceforge.net/lists/listinfo/opensg-users > ------------------------------------------------------- This SF.net email is sponsored by: Splunk Inc. Do you grep through log files for problems? Stop! Download the new AJAX search engine that makes searching your log files as easy as surfing the web. DOWNLOAD SPLUNK! http://ads.osdn.com/?ad_idv37&alloc_id865&op=click _______________________________________________ Opensg-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/opensg-users
