Media is not visible on Oculus 2/3

[martdob]

I followed exactly those steps:

1. Clone this project.
2. Open the project with Unity 2022.3.9f1 (Android Build).
3. From the Hierarchy tab, find Canvas > Gallery. and in the Inspector tab, find ImageLoader script, Check the box of ”ReadyToBuild”.
4. Navigate to File > Build Settings..., select the Android platform, then select your Meta Quest Pro as the Run device (if it's plugged in) and then click on Build and Run.

The result:
In the Unity3D editor, everything works fine. I can see the thumbnails and start the 3D view

In the Oculus 2/3, I can see only the gray plane and there is no media visible.

[Eis4TY]

No media？Please check media folder. Put your 3D media files into the "sdcard/Pictures/3dMedia" folder.(If you can’t see this folder, please open the app once, then close it and try again)

[martdob]

I checked the internal storage of my Oculus 3 and I discovered a folder /Pictures/3dMedia (no /sdcard/Pictures/3dMedia) with two files. I am sure that this folder was created by the XR.Stereoscopic.Viewer.0.2.2.apk which I tried before I downloaded the source files for Unity.
Also, if you read the code in ImageLoader script then the files in internal storage in the /sdcard/Pictures/3dMedia are not supposed to be used if the boolean value of ”ReadyToBuild” is false (unchecked in the inspector).
However, I tried also the boolean value of ”ReadyToBuild” with true flag and even though that I put some stereoscopic files into the /Pictures/3dMedia folder, the media did not appear.
After this test, I set the value of ”ReadyToBuild” againt to false. I created a new folder in Unity and named it "StreamingAssets". I put several stereoscopic images in to this folder and changed the code in the ImageLoader script from the folder "Media" to "StreamingAssets".
In the Editor, everything worked fine. In the Oculus 3, no media at all.

[Eis4TY]

I’m sorry for the mistake. You should select “ReadyToBuild” with the true flag for sure. Maybe the app hasn’t been granted permission to access local files?

[martdob]

First of all, many thanks for your support!

Each time, when I install the app, I always uninstall the old app. This is also the reason that the system asks me on every start to grant the permission to access the local storage and I alway allow this step. However, the desired folder " /sdcard/Pictures/3dMedia" does not appear on my Oculus.

You are right, this folder should be created after the first start of the app in the Oculus headset.

[Eis4TY]

Did you tried the release version: https://github.com/Eis4TY/XR-Stereoscopic-Viewer/releases
has same problem?

[martdob]

I found the issue. I did not activated the experimental features on my Oculus headset. However, the Unity project seems to use some experimental features since I get following question (see screenshot)

If I confirm that I would to use the experimental features in Unity in my Oculus headset wich is not enabled for the experiments, the app does get the permissions to access the internal storage. This is the reason why the media is not visible in the app.

THE SOLUTION:
If you get similar question in Unity and your device is not enebled for experimental use, DO NOT confirm that you are going to use the experimental features. Press the button "No, continue build".