FreeTrack Forum

Hello,

as wrote in a post some days ago the latest version of Free Track hangs when I start the camera stream (regardless any settings).

I installed the 2.1 version: this run perfectly but when I turn my head a bit more the skull will fix in that position and I can recovery the position. Also the "center" command doesn't work anymore. I must close and restart the program.

Note that the three tracking points are always active. I changed the settings but this didn't fix the problem.


My PC runs Windows XP Home SP3.

What should I do in order to find and fix the problem?

Thanks
Marco

It looks like a NAN error. Extract from the Software FAQ :

I'm using 3 point cap tracking and sometimes tracking fails for some axes and 'NAN' appears in the data readout, FreeTrack may also crash.

The model's front points cannot be allowed to move behind the middle point, relative to the camera plane. This could happen for downward pitching and extreme yawing. To avoid this, make your model deeper, with the middle point further back than the distance between the two front points.

Also make sure that only the tracking points are being tracked at all times and that there is only one tracking cross per point.

Rémy