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.
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