mutableLibrary.count returns zero when adding an image to the library with ScheduleAddImageWithValidationJob

Package: AR Foundation

Fixed

5.1.X

5.0.X

4.2.X

The documentation has been updated to reflect potential failure points when running the code. If the function is ran on the first frame of runtime, the session is null and the image cannot be added to the library. Refer to this docs page when the documentation is updated https://docs.unity3d.com/Packages/com.unity.xr.arfoundation@5.1/manual/features/image-tracking.html#add-new-reference-images-at-runtime

Porting documentation changes to 5.0. Method will fail if called on the first frame of runtime, since ARSession is currently null.

Porting changes to 4.2. Documentation changes highlighting the proper usage of the function, and how it can fail when calling the first frame of runtime, due to ARSession state being null.

How to reproduce:
1. Open the user’s attached “IN-23022_ARImageTrackingDynamic.zip“ project
2. Build and Run for Android
3. Go to Windows > Android Logcat and connect the device
4. Observe output messages

Expected result: “one has been loaded in to Library, mutable library size [1]“ message is logged
Actual result: “one has been loaded in to Library, mutable library size [0]“ message is logged

Reproducible with: 4.2.7 (2020.3.44f1, 2021.3.17f1), 5.0.3 (2021.3.17f1, 2022.2.3f1, 2023.1.0a26)

Reproducible with these devices:
Google Pixel 7 (Pixel 7), Android 13, CPU: Google Tensor G2, GPU: Mali-G710
Samsung Galaxy Z Flip3 5G (SM-F711B), Android 12, CPU: Snapdragon 888, GPU: Adreno (TM) 660
Samsung Galaxy S10+ (SM-G975F), Android 10, CPU: NOT FOUND, GPU: Mali-G76

Not reproducible with these devices:
VLNQA00494 - iPhone 14 Pro Max, 16.0.3 iOS
VLNQA00358 - iPhone 12, 14.1 iOS
VLNQA00392 - iPad (9th generation), 15.0 iOS

mutableLibrary.count returns zero when adding an image to the library with ScheduleAddImageWithValidationJob

Package: AR Foundation

Fixed

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mutableLibrary.count returns zero when adding an image to the library with ScheduleAddImageWithValidationJob

Package: AR Foundation

Statuses

Fixed

Resolution Notes

5.0.XFixedPorting documentation changes to 5.0. Method will fail if called on the first frame of runtime, since ARSession is currently null.

4.2.XFixedPorting changes to 4.2. Documentation changes highlighting the proper usage of the function, and how it can fail when calling the first frame of runtime, due to ARSession state being null.

Description

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