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I am able to build and run my app for Oculus Quest 2 using Unity 2020.2. However, I'm trying to get the hand interaction to work. In the HandInteractionTrainScene from the Oculus Integration package, I tell me I need to enable hand tracking.

I've searched around a bit and this should be solved by setting the "Hand Tracking Support" in OVRCameraRig to "Hands Only". Problem is that the field is disabled and I can't figure out why. I've been struggling with this for a while now.

OVRCameraRig with OVR Manager script

Does anyone have any suggestion on what the root cause might be?

maanijou
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cmhedlund
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2 Answers2

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To enable the quest features section you should switch the build platform to Android (File->Build Settings->Android->switch platform).

Deyan Yosifov
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My Unity editor version: 2021.3.5f1

To enable hand tracking using Oculus integration

  1. Go to Window > Package Manager > Packages: In Project

make sure Oculus XR Plugin is imported and up to date.

view example 1

  1. Go to Edit > Project Settings > XR Plug-in Management > Windows, Mac, Linux settings (monitor icon)

tick the following:

  • Initialize XR on Startup
  • Oculus

view example 2

  1. Go to Edit > Project Settings > XR Plug-in Management > Android settings (android icon)

tick the following:

  • Initialize XR on Startup
  • Oculus

see example 3

  1. Go to Edit > Project Settings > Player > Android settings (android icon) > Other Settings

In the Configuration section do:

  • Scripting Backend: IL2CPP
  • Untick ARMv7
  • Tick ARM64
  • Active Input Handling: Both

see example 4

  1. In the Project section search for OVRCameraRig prefab
  • Drag it to the Hierarchy section

see example 5

  1. In the Project section search for OVRHandPrefab prefab

In the Hierarchy section do:

  • expand OVRCameraRig
  • expand LeftHandAnchor
  • expand RightHandAnchor
  • drag the OVRHandPrefab prefab from the Project section and drop it as a child for LeftHandAnchor and RightHandAnchor

see example 6

  1. Click on OVRHandPrefab prefab under LeftHandAnchor and ensure:

In the Inspector section:

  • Hand Type: Hand Left
  • Skeleton Type: Hand Left
  • Mesh Type: Hand Left

see example 7

  1. Click on OVRHandPrefab prefab under RightHandAnchor and ensure:

In the Inspector section:

  • Hand Type: Hand Right
  • Skeleton Type: Hand Right
  • Mesh Type: Hand Right

see example 8

  1. Click on OVRCameraRig and select:

In the Inspector section:

  • Hand Tracking Support: Hands Only
  1. To adjust the tracking origin click on OVRCameraRig and choose from:

In the Inspector section:

  • Tracking Origin Type: Eye Level, Floor Level, Stage
  1. Go to File > Build Settings
  • Add the appropriate scene in the Scenes In Build
  • Platform: Android
  • In Android section > Run Device: [your Oculus]
  • Click on Build And Run

Conclusion

I assume you have your Oculus device plugged in to your computer and it is in Developer mode and you cannot test the hand tracking in play mode in Unity.

Talha Safdar
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