Hands don't show up in VR Preview

Development Platform & Builds XR Development
1

Hi All,

I just started experimenting using Oculus hand tracking in unreal. I have enabled the headset hand tracking option and also unreal Oculus VR plugin hand tracking option. I have also checked the Oculus hand tracking examples to look at the proper setup.

But at this point I can see the hands are tracked but no mesh gets rendered when I VR preview the scene using Link cable. I only can see the Oculus icon and menu option icon when have my palm facing up, but no hand skeletal mesh shows up!

I was wondering if any of you know what is wrong?

Iā€™m using UE 4.26.2

Thanks in advanced,
Ehsan

1 Like
2

Iā€™m very new to this kind of development, and even newer to VR but I thought perhaps what little I know might help a bit.

Iā€™ve just moments ago enabled hand tracking in my project to see what it would do.

Iā€™ve created a new VR Project, and opened the provided ā€œMotion Controller Mapā€. (enabled hand tracking) I too can see the oculus menu icons appear when i turn my hands around to face me.
My 3d Hand mesh appears and tracks the location & rotation, but not the initial rotation of my hands. By that I mean i can wave my hands about and rotate them but they are facing the wrong direction.

I think the ā€˜BPMotion Controller Pawnā€™ blueprint, which is already instanced in the scene but renamed as: 'VRPawn" (from memory), calls the ā€˜BP_motion controllerā€™ blueprint which appears to have the 3d meshes attached.

So assuming youā€™re trying to use the default blueprints, I assume youve either not used the ā€˜BPMotionControllerPawnā€™ blueprint at all, or forgotten to set itā€™s ā€˜Auto Possess Player->Player 0ā€™ value.

Good luck! Iā€™m trying to do the same thing.

3 Likes
3

Thank you for your response, but Iā€™m not using the template. I have my own project setup, but it worked after setting the confidence factor in the Oculus Hand Component to None. Iā€™m not sure if that is the right solution though.

4

I know itā€™s been a long time ago, but Iā€™m having the same issues as mentioned hereā€¦ i can see my oculus icon and menu option but my hands wonā€™t show at all. Iā€™ve applied a custom mesh and still wont show my hands. Is there any other solution to this?

5

Please check if openXR plugin is enabled. If it is enabled, disable it and try it works for me in 4.26.

6

Did you find a solution for this?
@NitroCourt, I have tried disabling openXR but it also disables oculusVR with it.
The message I get is this:
ā€œThis plugin is required by OculusVR. Would you like to disable it as well?ā€
image

How do you manage to disable openXR only but keep oculusVR plugin?
Also, does this work in package-build game?
Thank you.

7

For anyone having trouble, this guy has good video tutorials on activating Oculus hand tracking in various UE versions. Check him out.

8

For anyone still having problems with this, set the XR API to ā€œLegacy Oculus SDK (no longer developed by Epic)ā€

9

I had the same issue and chose auto-possess player 0, and that fixed it.

1 Like
10

Any new solution? :sob: :sob: :sob: