Hi Vincent, The Quat is stored as doubles, as should the rest of the internal variables in NodeTracker.
Which version of the OSG are you using? Older versions didn't use double maths. Robert. On Fri, Dec 5, 2008 at 10:51 AM, Vincent Bourdier <[EMAIL PROTECTED]> wrote: > Hi, > > Using a nodeTrackerManipulator to make some tests, I think I get some bug in > precision... > > I set the tracked node with a PAT. > > Each frame, this PAT is modified with two Quat and one translation. > Each Quat one is a different rotation... they are added (Q = q1 * q2) and > applied to the PAT. > > The nodeTracker seems to have a precision problem... the camera do not stay > motionless relative to the PAT... a little relative translation is visible, > when running more than 10s. > > So, > Is the Quat accumulation responsible of that ? is there really a lack of > precision in the manipulator ? > > Sorry I have no enough time to make a example to show that... but I think > you can try easily. > > Thanks. > > Regards, > Vincent. > > > > _______________________________________________ > osg-users mailing list > osg-users@lists.openscenegraph.org > http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org > > _______________________________________________ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
