On Mon, 19 Jun 2006, Christian Mayer wrote: > Anders Gidenstam schrieb: > >> However, at this time the program is very crude and I have not managed >> (due to lack of time etc) to sort out the translation from quarternions to >> euler angles needed to support tracking of head rotation (i.e. it tracks >> position only). > > > AFAIK does Plib have the necessary calculation routines in SG.
Thanks! I found some useful info on the JSBSim site and added a simple and naive/erroneous ability to track rotations to my program. It is enough to play around but leaves a lot to be desired, e.g. the camera must be facing the marker card head on in the forward view direction and when turning the head to the side the view rotates to that side (good) but also down (bad). Anyway, I put the thing on the web here: http://www.gidenstam.org/FlightGear/HeadTracking/ in case anyone wants to try it out (or, hopefully, improve it.. :) Using the head tracking wasn't all that pleasant - but then my webcam defaults to 5 fps which doesn't provide for a smooth ride and my computer lacks the horsepower to run the image processing without slowing down FlightGear which doesn't help either. Cheers, Anders -- "In a world without fences, who needs gates?" Email: anders(at)gidenstam.org WWW: http://www.gidenstam.org/FlightGear/ Using Tomcat but need to do more? Need to support web services, security? Get stuff done quickly with pre-integrated technology to make your job easier Download IBM WebSphere Application Server v.1.0.1 based on Apache Geronimo http://sel.as-us.falkag.net/sel?cmd=lnk&kid=120709&bid=263057&dat=121642 _______________________________________________ Flightgear-devel mailing list Flightgear-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/flightgear-devel
