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Migrate from UnityARKit to ARFoundation

Discussion in 'AR' started by karsnen, Jun 17, 2019.

  1. karsnen

    karsnen

    Joined:
    Feb 9, 2014
    Posts:
    65
    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
     
    ina likes this.
  2. ina

    ina

    Joined:
    Nov 15, 2010
    Posts:
    1,003
    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.
     
  3. karsnen

    karsnen

    Joined:
    Feb 9, 2014
    Posts:
    65
    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.
     
  4. hawken

    hawken

    Joined:
    Aug 22, 2013
    Posts:
    638
    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.
     
  5. karsnen

    karsnen

    Joined:
    Feb 9, 2014
    Posts:
    65
    @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
     
    unnanego likes this.
  6. hawken

    hawken

    Joined:
    Aug 22, 2013
    Posts:
    638
    - 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.



     
    karsnen likes this.
  7. karsnen

    karsnen

    Joined:
    Feb 9, 2014
    Posts:
    65
    @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.

     
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