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Question AR target object flickering

Discussion in 'AR' started by Saltakatt, Sep 8, 2022.

  1. Saltakatt

    Saltakatt

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    Hi, I'm struggling to get my prefab visible when viewing the target image.
    Right now it flickers or doesn't show up at all.

    I have changed both the target image and the device but with the same result.
    I'm using Unity 2022.1.15f1 Silicon and iPhone XS.

    Anyone have an idea how to fix this?
    ar_flicker.gif
     
    Saltakatt, Sep 8, 2022
    #1

  2. DevDunk

    DevDunk

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    Is depth occlusion enabled?
    If so, disable it.
    And start with huge objects maybe, maybe without image tracking to see where it starts to break
     
    DevDunk, Sep 14, 2022
    #2

  3. andyb-unity

    andyb-unity

    Unity Technologies

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    andyb-unity, Sep 20, 2022
    #3

  4. Saltakatt

    Saltakatt

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    Thank you for the feedback.
    I have updated to iOS 16 and Unity 2022.6 but that made the camera freeze.
    I am now using Unity 2022.2.0b8, so now the camera works again.

    I have disabled “Occlusion Culling” (I guess that what you ment by “depth occlusion”)
    Also I have put in 2 green objects without image tracking.
    And I am using the recommend test purposes images.

    The result is still similar


    target_003.gif
     
    Saltakatt, Sep 21, 2022
    #4

  5. andyb-unity

    andyb-unity

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    andyb-unity, Sep 27, 2022
    #5
    makaka-org likes this.

  6. RakanAD

    RakanAD

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    i have exactly the same issue
     
    RakanAD, Feb 23, 2023
    #6

  7. andyb-unity

    andyb-unity

    Unity Technologies

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    If you are experiencing camera freeze issues on iOS, ensure that your device is updated to iOS 16.3 or newer, and AR Foundation is updated to 4.2.7 or newer (for 4.2) or 5.0.3 or newer (for 5.0). There were bugs in older versions of iOS and AR Foundation that could cause the camera to freeze.
     
    andyb-unity, Feb 23, 2023
    #7
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  8. RakanAD

    RakanAD

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    Hello again, apparently you just need to indicate the max number of moving images to 1 or above, it was at 0 by default. It works for me, hope this will help you
     

    Attached Files:

    RakanAD, Feb 24, 2023
    #8
    makaka-org, brett15 and DevDunk like this.

  9. brett15

    brett15

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    Nov 19, 2019
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    Want to confirm that this worked for me too. Using Unity 2023.2.0f1, ARKit, Xcode 15.0.1, and iOS 17.0.3.
     
    brett15, Nov 19, 2023
    #9
    makaka-org likes this.

  10. makaka-org

    makaka-org

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    In which case can 0 value be useful? @andyb-unity

    Maybe her you need to integrate Range Attribute?
     
    makaka-org, Nov 20, 2023
    #10

  11. andyb-unity

    andyb-unity

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    andyb-unity, Nov 21, 2023
    #11

  12. makaka-org

    makaka-org

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    "The default value is 0, which disables image tracking. If you add reference images to detectionImages with this property set to 0, ARKit creates image anchors for observed reference images but their positions only update infrequently, such as once every couple of seconds."

    So with this description, I guess, 3D objects must stay on the screen, "floating" in the space, but in this post they are disappeared
     
    makaka-org, Nov 21, 2023
    #12