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Hi sleiN13,
thank you for clarifying, hope I understand what you mean now. However, with Vicon Bonita you have a set of markers (we put 5) on the HMD and after initially calibrating the tracker and building the volume with its x,y and z axes, one builds the object to track based on the position of the markers and this object (in the script I posted is called head2) then is used by Vizard to update the subject position etc...so it is at level since is built on the HMD, maybe you were thinking to a different kind of tracker? or maybe I didn't get you yet? thanks again
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