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update answer for latest Unity versions

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edited Sep 12, 2021 at 5:18

You can now also use UnityEngine.XR and XRDevice.userPresence without the need for additional API's : https://docs.unity3d.com/ScriptReference/XR.XRDevice-userPresence.html

For example :

if(trackingPresence == true)
    {
        if(XRDevice.userPresence == UserPresenceState.Present && playerPresent == false)
        {
            playerPresent = true;
            Debug.Log("[PLAYER PRESENCE DETECTOR] player is now present");
        }

        if(XRDevice.userPresence == UserPresenceState.NotPresent && playerPresent == true)
        {
            playerPresent = false;
            Debug.Log("[PLAYER PRESENCE DETECTOR] player is now absent");
        }
    }

Edit : for latest versions of Unity, you can use XRDisplaySubsystem.running : https://docs.unity3d.com/2020.3/Documentation/ScriptReference/XR.XRDisplaySubsystem.html

You can now also use UnityEngine.XR and XRDevice.userPresence without the need for additional API's : https://docs.unity3d.com/ScriptReference/XR.XRDevice-userPresence.html

For example :

if(trackingPresence == true)
    {
        if(XRDevice.userPresence == UserPresenceState.Present && playerPresent == false)
        {
            playerPresent = true;
            Debug.Log("[PLAYER PRESENCE DETECTOR] player is now present");
        }

        if(XRDevice.userPresence == UserPresenceState.NotPresent && playerPresent == true)
        {
            playerPresent = false;
            Debug.Log("[PLAYER PRESENCE DETECTOR] player is now absent");
        }
    }

You can now also use UnityEngine.XR and XRDevice.userPresence without the need for additional API's : https://docs.unity3d.com/ScriptReference/XR.XRDevice-userPresence.html

For example :

if(trackingPresence == true)
    {
        if(XRDevice.userPresence == UserPresenceState.Present && playerPresent == false)
        {
            playerPresent = true;
            Debug.Log("[PLAYER PRESENCE DETECTOR] player is now present");
        }

        if(XRDevice.userPresence == UserPresenceState.NotPresent && playerPresent == true)
        {
            playerPresent = false;
            Debug.Log("[PLAYER PRESENCE DETECTOR] player is now absent");
        }
    }

Edit : for latest versions of Unity, you can use XRDisplaySubsystem.running : https://docs.unity3d.com/2020.3/Documentation/ScriptReference/XR.XRDisplaySubsystem.html

Source Link

created Jun 14, 2019 at 8:04

alpha_rats

You can now also use UnityEngine.XR and XRDevice.userPresence without the need for additional API's : https://docs.unity3d.com/ScriptReference/XR.XRDevice-userPresence.html

For example :

if(trackingPresence == true)
    {
        if(XRDevice.userPresence == UserPresenceState.Present && playerPresent == false)
        {
            playerPresent = true;
            Debug.Log("[PLAYER PRESENCE DETECTOR] player is now present");
        }

        if(XRDevice.userPresence == UserPresenceState.NotPresent && playerPresent == true)
        {
            playerPresent = false;
            Debug.Log("[PLAYER PRESENCE DETECTOR] player is now absent");
        }
    }