i got a problem where the 3D Objects are sliding away from the marker when I move my device (iPad Pro 12,9"). I created a new Project and positioned (snap) some primitives of Unity at the edges of a standard Vuforia marker (Image target, stones). I built it onto the iPad and look straight at the marker everything seems to be ok, but when i move a few steps away from the marker, to see all objects, the objects are not at the correct position anymore(around 2-4cm difference). Eventhough when i move around the marker, the objects are always displaced in a weird direction, which is not always the same. By tilting the iPad (left and right), the objects are moving to the opposite side than the tilt.
I also tried it on several iPhones, iPads and Android devices. My expectation is that the objects are still placed at the edges of the marker, but they are kind of sliding "away".
I use Unity3D 2017.3 and the integrated Version of Vuforia 7. I also tried some other settings in the Vuforia configuration but the problem is still there. In my Project i need to use the Extended Tracking, but the wrong positioning without, is there too.
What I've tried:
- using another marker
- creating a new project
- use another device
- World Center mode changed
- Extended tracking on/off
- Camera optimization (speed/quality)
My guess is, it could have something to do with the projection matrix or the intrinsic parameters of the camera. Maybe someone can help me.
Thanks in advance!