Is there any way to detect the headset is taken off?

Unity Engine
, ,
1

I want to make the game goes back to main screen 3 seconds later after the player take off the headset.

Maybe detecting whether the camera rotating will work…? (Still, don;t know how to detect that…)
I’m beginner so it’s hard to find which way is effective. If you have any advice, please let me know.

2

If you use the new input system you should be able to make an action for HMD removed from head

3

Sadly I don’t use the new input system … Should I? Looks like I don’t even know what I need to know. :0

4

Guess I found the solution…!

1 Like
5

The analogy to this solution for OpenXR does not work because of a bug in which you don’t receive the HMD removed event until AFTER the headset is put back on!

But after a day of struggle I finally found a solution. You simply poll the velocity of the HMD and when it is Exactly a zero vector the user has taken off the HMD

    void Update()
    {
        if (HMDFound)
        {
            Vector3 velocity;
            inputDevice.TryGetFeatureValue(CommonUsages.deviceVelocity, out velocity);
            var hmdMounted =  velocity != Vector3.zero;
            if (hmdMounted != lastHmdMounted)
            {
                go.SetActive(hmdMounted);
                OnUserPresence(hmdMounted);
                lastHmdMounted = hmdMounted;
            }
        }
        else
        {
            var inputDevices = new List<InputDevice>();
            InputDevices.GetDevices(inputDevices);

            foreach (var device in inputDevices)
            {
                if (device.characteristics.HasFlag(InputDeviceCharacteristics.HeadMounted))
                {
                    inputDevice = device;
                    HMDFound    = true;
                }
            }
        }
    }
1 Like
6

hi, may i know if i can apply this coding in openXR? and i dont understand where i can implement this coding into my vr simulator in unity.