I want to leverage Extended Tracking for an Image Target in my Unity project.
When AR Camera's World Center Mode = FIRST_TARGET, extended tracking works fine, however when World Center Mode = DEVICE, extended tracking does not work and contents of the image either vanish or flying at random position when the image is not in camera view.
Hello,
I believe what you're observing is the difference between the World Center Modes. World Center Mode defines which object in the scene will serve as the origin ( 0,0,0 ) of the scene's world space. When FIRST_TARGET is chosen, the first target detected is used as the scene origin. When DEVICE is chosen, it is the ARCamera.
Thanks,
Vuforia Engine Support