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Mid Air Indicator Prefab

September 8, 2019 - 3:50pm #1

Using Vuforia 8.3.8/9 in Unity 2019.2.4f1, I am unable to edit the Default Mid Air Indicator Prefab (materials and size). When I attempt to open the prefab, Unity crashes. I was able to adjust this prefab in earlier versions of Unity/Vuforia. Given issues with Android 64 bit build, I must use the latest version of Unity. Can anyone help with this issue?  Steps to recreate:

1. Create new project in Unity 2019.2.4f1;

2. Select project settings/XR Settings/Vuforia Augmented Reality Supported

3. Select packages > Vuforia Engine AR > Vurforia > Prefabs > DefaultMidAirIndicator

4. In Inspector, select "open prefab"

5. Error message, "Argument Exception: Saving Prefab to immutable folder is not allowed:"

6. Force Quit to exit unity

Thanks!

Mid Air Indicator Prefab

September 24, 2019 - 5:52pm #8

Conclusion:

image target is *not* detected on my LG G8 ThinQ device with the following configuration: Unity 2019.2.4, Vuforia: 8.3.8; ILCPP; ARM v7 + ARM64, API Net 4x.

image target IS detected on Samsung Galaxy S10e with the same configuration, above. Therefore, it is a device issue.

You may want to test the LG G8 ThinQ yourself to confirm that it is not a supported device for ARM64. My device is only a few weeks old so I doubt that it is an issue with one phone.

 

Thanks for your help.

 

Mid Air Indicator Prefab

September 24, 2019 - 2:47am #7

Hi,

I've tested with the Vuforia core samples apps and was *not* able to reproduce the issue. Configuration: 2019.2.2; Vuforia: 8.3.8; ILCPP: ARMv7+ARM64, API Net 4.x// phone: Samsung S8

If ARCore supports the device and in this case, it does, Vuforia will also support it via the Fusion capability.

Could you please set the ARCore requirement to Required and try it?

In order to determinate if it's a device issue, you could try to build the Core Samples app from the assetstore on the LG phone or try your app on another android device. Unfortunately I don't have an LG device to test it.

Thank you.

Vuforia Engine Support

 

Mid Air Indicator Prefab

September 23, 2019 - 4:11pm #6

AR Core was set to Optional and Google Play Services had been Installed on this LG G8 ThinQ phone . On this phone, the build/deployment is:

- successful and I can see the image target when using Unity 2019.8.1., Vuforia 8.1.11, Scripting back-end Mono, API 2.0, Architecture ARMv7. 

-successful BUT I cannot see the image target when using Unity 2019.2.4, Vuforia 8.3.8, Scripting back-end IL2CPP, API Net 4x, Architecture ARMv7 + ARM64.

When I build/deploy on an iOS device (using Unity 2019.2.4 & Vuforia 8.3.8) it is successful AND I see the image target.

Before I try this on another Android phone -- which I will have to get -- can you please confirm that the LG G8 ThinQ works for the latest versions of Unity/Vuforia, assuming ARM64?

If it is meant to work then something else is preventing the detection of image target. 

 

Thank you!

 

Mid Air Indicator Prefab

September 16, 2019 - 6:47am #5

Hi,

I checked to see if the device is ARCore supported and it is as per link: https://developers.google.com/ar/discover/supported-devices

Before building could you please make sure that the ARCore requirement option is set as REQUIRED or OPTIONAL. Afterwards please also check and confirm if you have Google Play Services for AR installed on the device?

Thank you.

Vuforia Engine Support

Mid Air Indicator Prefab

September 12, 2019 - 9:40pm #4

Thanks very much. I was able to copy the asset and modify as suggested. All works well in play mode on the Mac. However, when I build and run on Android, my 3D target asset is not triggered.

I only see the newly modified mid air indicator in real world environment through the camera lens. And, the Unity console notes that the build was successful. I tested again using the non-modified default indicator and had the same result. My 3D target asset does not appear when I tap the indicator/screen.

In an earlier version of Unity/Vuforia, I was able to successfully build to iOs and Android. I'm missing something... any ideas? I am testing on an LG G8 ThinQ. Please also confirm that this is a supported device in Unity 2019.2.4f1, Vuforia 8.3.8/9.

Mid Air Indicator Prefab

September 12, 2019 - 1:53am #3

Hi @immersivekid,

I got feedback from devs that the behavior is as expected, package assets cannot (and must not) be modified. The expected workflow is to copy the asset in your asset folder and modify it accordingly.

Thank you.

Vuforia Engine Support

Mid Air Indicator Prefab

September 9, 2019 - 2:08am #2

Hi

I was able to reproduce the issue and reported it to the Dev team.

Will update this thread with any new information as soon as I have it.

Thank you.

Vuforia Engine Support

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