Hii,

I am also having same problem , When I hit  to play, AR camera open and image target tracked but my object is fall down

when I apply  UseGravity on  Rigidbody  and  I also  use box colider on the IT. help me 

Hi, 

My understanding of your issue as follows: The image Target is detected and when you tilt the camera, the Image Target also tilts and the balls falls down. 

Image Target should not tilt based on the device, are you by any chance having the image Target a child of the AR Camera? Un-parenting it, should address this. 

Thank you.

Vuforia Engine Support

revisiting this experience again, please advise as to how I return to how Vurforia use to detect targets so that my gravity is relative to the card and not the angle of the camera?

My child objects only show up when I use World Center Mode Device, if I use World Center Mode First_Target, the child objects act as expected in the editor window but are not shown in the game view as they are not in the same position in world space as the card itself.

please advise as this is really preventing us from deploying fun physics based experiences that are based on the cards rotation, not the rotation of the camera. 

This solution will only keep the objects within the box collider. Is there a way to get back to the legacy style where the image target is the center point so objects don't tilt with the orientation of the camera?

Hi,

Q1: I've quickly tested the behavior and can confirm that using Rigidbody on the child of the IT will make them fall down.

You will need to add a box colider on the IT, adjust the size accordingly. This should prevent your child GameObjects from falling.

Q2: This would be the normal behavior, you should see only the camera with a videofeed.

Thank you.

Vuforia Engine Support