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Anonymous's avatar
Anonymous
5 years ago

Unity - Hand tracking disappear forever when adding OVRGrabber

So I was trying to implement a grabber with the Hand tracking but i didnt know why my hands were disappearing at some point in the development. Then I realized that when i added the OVRGrabber to the hands, those disappear from the scene, but they are still there cause I can touch the Guardian system with my hands. So when I delete the OVRGrabber the hands were still invisible. Im sure that the OVRGrabber is causing this, cause i were compiling step by step to catch where the hands were disappearing.

Btw im using just the OVRCameraRig prefab, the HandsManager and the OVRHandPrefab.



EDIT: So i figured out that you can solve this problem deleting the OVRHandPrefab and grabbing it under the controller anchor again and it will fix... but i dont know why you cant put the OVRGrabber to the OVRHandPrefab...
bug report
Oculus Quest hand tracking
ovrgrabber

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  • stefaneisele's avatar
    stefaneisele
    Explorer
    4 years ago
    Hi Shavier, I had the same problem with the following setup:
    Oculus Quest v.1
    Unity 2020.2.2f1
    Oculus Integration v 23.0

    Maybe you did find a solution, as this issue is old. But it appeared to me as well.

    I fixed it by disabeling the Gravity of the RigidBody that comes along with the OVRGrabber.
    After starting the simulation, the hands seemed visible again. Running the simulation one time,
    I could enable Gravity again and it seemed stable.
    (Strange BUG, but worked for me)
    BTW: "IsKintematic"-Parameter of the RigidBody-Component schould be enabled as well.

    Hope this helps.