Migrate from UnityARKit to ARFoundation

Hello,

I see that Unity AR Kit plugin has been deprecated. I have been using Unity ARKit plugin and now have to move to ARFoundation. My primary usage of ARKit plugin is with ARWorldMap.


So far i have been using Unity 2018.3.14f1 but it looks like I have to use Unity 2019.1+ for ARFoundation.

Is there any migration guide or can anyone give me recommendations. I would also like to know where to start ARFoundation?

Thank you,
Karsnen

Unity ARKit Plugin
https://bitbucket.org/Unity-Technologies/unity-arkit-plugin

Unity ARFoundation
https://docs.unity3d.com/Packages/com.unity.xr.arfoundation@2.2/manual/index.html

 

Good question!

Millions of Unity developer hours could be saved here if there's either an automated converter (like TextMeshPro package updates) or at least a very clear guide for upgrade.

 

Thanks @ina. I have several request of such kind for no response. My ARFoundation setup is like this :

Unity Version : 2019.1.6f1

ARFoundation Version : preview.2 - 2.2.0

ARKit Plugin : Preview 5 - 2.1.0

Device iOS : 12.+

XCode Version : 10.2.1


What is yours? Maybe we could help each other.

 

Theres a few fundamental conceptual changes that would make automatic conversion a bit tricky.

Manually converting over only takes an hour or two though... have done this recently on a project and it wasn't too painful, just be mindful of the change in concepts.

 

@hawken Thank you for the reply. I have been searching for 3 elements for the past 2 weeks. Could you please help me locate these? I would highly appreciate it.

1. Session Interruption Start/Ended Event
   When there is an interruption with the session, there would be a start & end event. Something like this : https://bitbucket.org/Unity-Technol...ce/UnityARSessionNativeInterface.cs#lines-345
   Where is this located?
   
   
2. Session Failed Event
   If a session fails for some reason, there is a callback. https://bitbucket.org/Unity-Technol...ce/UnityARSessionNativeInterface.cs#lines-340
   
   
   
3. Tracking Reason
   How to know the tracking reason when Tracking is limited
   https://forum.unity.com/threads/tracking-reason-in-arfoundation-with-arkit.698846/#post-4685585

 

- Session Interruption Start/Ended Event
- Session Failed Event

ARFoundation has auto resume. The nearest approximation I think is this:
https://docs.unity3d.com/Packages/c...nityEngine.XR.ARFoundation.ARSystemState.html

I think tracking reason has gone away, but theres a bunch of things you query the system state on.

 

@hawken :
Thank you very much for your reply. I highly appreciate it. I have one small question. Could you please explain what you meant by the following? I am unable to understand.