Just to give the context :
I use Vuforia to get the pose, then I extract the camera's vectors (position, direction , up) to set them in my 3D rendering engine, after a 90° rotation along X (not the same reference frame). I made the choice to move the camera and not the 3D object, that's why I extract these parameters from the MV matrix.
So, now, when I compare the vuforia sample and my application I see that the result is not the same, I have not enought precision :
When the marker is on the center of the screen, all is good.
On the side, the augmenter aubject is no longer at the center of the marker.
My first idea was the FOV, I get it folowing the documentation and set it on my 3D persperctive camera, without fixing the issue.
So the question is : What other parameters I missed ?