Fixing tracking house position

[triplehoon]

Hello I am trying to use 4 vive trackers and multiple tracking houses in the room to know the position of the our system.

 

I am doing with C# wrapper for steamVR (addavark library).

 

I confirm its usage with-in short term, however I found the corridation changed during using it for long-trem.

 

I think, when tracker loose it track with the one of tracking houses, the cooridation changes.

 

I want to fix coordination with one tracking house. Is it possible?