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Synergiz
Inspiring
December 6, 2023

Meta Quest 3 / Pro : Whole app scene moving away when putting down the helmet and back on

Hi,

We noticed a strange behavior with our unity app : Whenever we put the device down or "change heads", the whole scene has moved away from its original position. (i.e, if you have two objects in front of you, put the Quest down, and then back on, the two objects will be well placed from one another but like 4 meters away on your right).

After some research it seems like it is the world coordinate system that changes, as the world coordinates of our game objects don't move, but they are misplaced in the real world...

This is really problematic and I can't figure out why no one had this issue before, anyone knows what's causing this ?

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    5 replies

    Axmit
    New Participant
    December 19, 2023

    This is indeed frustrating.  It happens us all the time and we don't have a good way to handle it.

      SynergizAuthor
      Inspiring
      December 21, 2023

      We used OVR Spatial Anchors on a root game object to stabilize the whole scene. But it is indeed frustrating

      Axmit
      New Participant
      December 21, 2023

      This is great to know, thank you!

      VbManOc
      New Participant
      December 22, 2023

      This happened to me when using AutoHand. The player character would jump or slide away until I put the camera on. It started happening again to me in my new customer player character.
       It came out to be that the rigidbody being used for the player body was "hitting" the ground continually as the camera was on the vr floor until I picked up the headset and it corrected the rigidbody body to be standing up and down as designed in the editor, not as the vr head being on the floor on start. 

      SynergizAuthor
      Inspiring
      December 22, 2023

      Thanks but this seems to be another issue : I am using the headset in AR here, so no avatar, no rigibody 😉

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