Hand Tracking not working

[jetlius]

Hi,

I tried the demos, both the built example from the website, as well as installing the examples myself with Unity, but the hand tracking is not working in my device (I am using a Samsung S9, which I believe is supported).

Is there anything I may need to activate first? Thank you

[jeffhuang]

Are you using the HelloWorld example? What are you seeing?

[jetlius]

Are you using the HelloWorld example? What are you seeing?

Yes, I tried the HelloWorld example, the Grab and the Chicken, all of them give the same results.

The planes are being detected, the UI works, but my hand/wrist/arm does not have the points that indicate they are being detected, and I cannot grab and interact with the virtual objects.

[jeffhuang]

Can you attach a screenshot? Please make sure your hand is fully in view of the camera

[jetlius]

Can you attach a screenshot? Please make sure your hand is fully in view of the camera

[jeffhuang]

Thank you, we are able to reproduce the issue on a Samsung S9. We're looking into it. Thanks for your patience, and for reporting the issue.

[tutu5110]

Hi Jetlius, Thanks for pointing that out! It has to do with a specific shader we use to share the Unity's camera texture with MediaPipe that is not supported by S9/S9+. S10+ support this texture without an issue. I will update the description to reflect this. Thanks again!

[shoukailiang]

I also encountered this problem in Mi8 and Mi11

[fweidner]

I have (it seems) the same problem with a Xiaomi 12 Pro but also with a Pixel 4 XL. Downloaded the repo, followed step 1-4, deploy the HelloWorld scene (with the planet). AR is working but hand tracking is not (on both phones). Building and running the app on a Pixel 6a, AR and hand tracking work fine. Log files are attached (logcat output). Can we pinpoint a cause?

For some reason/hunch, I think it is a config/setup issue bc it's supposed to work on a Pixel 4 (according to the documentation) but does not work on a Pixel 4XL. Any hints appreciated and thanks for open sourcing it :)

Xiaomi12Pro-notworking.txt
Pixel6a-working.txt
Pixel4XL-notworking.txt

[jeffhuang]

thanks for investigating, @fweidner

@tutu5110 have you seen the errors in the notworking logs before? It seems especially strange that it doesn't work on the Pixel 4 XL