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Usung Model Target Funciton, OnTrackingLost is not called, in Hololens.

July 5, 2018 - 10:43pm #1

Usung Model Target Funciton, OnTrackingLost is not called, in Hololens.

 

So, gameobjects in children tree is not disappeared. 

 

This issue is not occurred in Unity Pre-view mode using PC-CAM.

 

My Vuforia version is 7.1.34.

Unity version is 2018.1.0f2.

 

Please review this issue.

Usung Model Target Funciton, OnTrackingLost is not called, in Hololens.

October 4, 2018 - 5:43am #2

Hi,

 

same problem here. Using the official sample provided by Vuforia on Unity, testing with the astronaut picture, the log prints 'Trackable Astronaut found' but never prints 'Trackable Astronaut lost' whereas it works on Editor.

Please check the enclosed video.

After a while, I figured it out. 

The function OnTrackableStateChanged() is called when the image is no longer in HoloLens sight but with the new state: :EXTENDED_TRACKED and not LOST as we thought. That's why the mesh is not disabled…

Hope it helps…

Diego

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