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BlackRen's avatar
BlackRen
Explorer
2 years ago

[MajorBug] Acceleration returns 0 for all Meta Quest, on Unity and Unreal Engine

Hi,

Whatever the Meta Quest version 1, 2 & 3, whatever the node or device, on Unreal Engine 5.4.4 and on Unity 2021 to 6000, the requested acceleration is (0, 0, 0) and the requested angular acceleration is (0, 0, 0).

  • In Unity, these (0, 0, 0) vectors are obtained using the TryGetFeatureValue(CommonUsages.deviceAcceleration, out deviceAcceleration) and TryGetFeatureValue(CommonUsages.deviceAngularAcceleration, out deviceAngularAcceleration) methods (but also using OpenXR)
  • In UnrealEngine, they are obtained using the GetRawDeviceData in a blueprints.

The bug has 100% repeatabilty and is very easy to reproduce

Consequently:

  • There is no way to get the acceleration for the Meta Quest
  • The problem is neither Unity nor UnrealEngine nor OpenXR --> is has to be a Meta bug
Meta Quest
Meta Quest 2
Meta Quest 3

5 Replies

  • Eire_Max's avatar
    Eire_Max
    Meta Quest Support
    2 years ago

    Hey BlackRen!

    This type of issue is out of my expertise unfortunately 😅 but if you haven't done so already, I would recommend submitting a Bug Report to alert the Engineering Team of you issue. The steps to do this can be found here!

     

    • BlackRen's avatar
      BlackRen
      Explorer
      2 years ago

      Hi Eire_Max,

      Thank you for the link, I didn't find a location for bug reporting to meta. Conversely, I know exactly when the bug appeared (more than 2 years ago)

    • BlackRen's avatar
      BlackRen
      Explorer
      2 years ago

      Hi Eire_Max,

      Unfortunately, the page of your link is inadequate for a developer debug. I can't send projects and not even provide screenshots. "Meta's Bug Bounty Programme" is the appropriate format for bug report, but it is stated "security vulnerability". Would an issue concerning non returned inputs be appropriate for the "Meta's Bug Bounty Programme" ?

      • Eire_Max's avatar
        Eire_Max
        Meta Quest Support
        2 years ago

        Hey BlackRen 

        Thanks for getting back in touch, I don't believe your issue would apply for the Meta Bug Bounty program, as you said, it doesn't really qualify under "security vulnerability".

        As I say, I'm not really a developer by trade but I would recommend accessing the developer support resource found here to see if there is a resolution for your issue.

        Good luck!