Disable rotation headset

Unity Engine
1

Hello,
I have a tracking device other than the headset, and I would like to get the only the rotation from the headset and put it inside my tracking device, and finally set the rotation from my tracking device to the camera.
My problem is whatever I do, the rotation from the headset is always applied to my Camera, and I cannot cancel it.
How could I do that ?

PS: The headset I use is an Occulus, so I installed the package for Unity, and the only possibility is to disable the “Position Tracking”.

Thanks

2

I have tried to cancel the last movement

        transform.localRotation = Quaternion.Inverse(UnityEngine.VR.InputTracking.GetLocalRotation(UnityEngine.VR.VRNode.Head));

But the movement is a bit laggy.

3

Is there another way to disable the tracking ?

4

I tried to disable all the trackings, but I have a floating screen.

5

I do not have solved my problem yet, any ideas ?

6

Another technic I use, is to render my whole scene into a rendertexture and then I display it with another camera. But I wonder, what’s the cost in performance ?