Question How can I interact with the real object like this vuforia demo?

When you move the real object or rotate the object, the virtual model changes in accordance with the changes of the actual object.

 

Vuforia has tutorials for object tracking,
https://library-archive.vuforia.com/features/objects/object-reco.html
https://library.vuforia.com/model-targets/how-create-model-targets-3d-scans

 

Thank you！
And I am still wondering whether it can be done by AR Foundation. Do you have any information about that?

 

oh, maybe it does for apple, havent tested that:
https://github.com/Unity-Technologies/arfoundation-samples#object-tracking