Thank you for the reply,
I use the Epson Moverio BT200, I ran the calibration app and the eyewear function is giving me the projection matrices with good translations/rotations, the problem is not about calibration. I will try to enlight the problem a little bit more.
In OpenGL, the far plane and the near plane (called the clipping planes) are planes that indicate to OpenGL the depth values between which it renders 3D, anything further than the far plane or anything nearer the near plane is not rendered. These values lies somewhere in the projection matrix (further information here: https://www.opengl.org/sdk/docs/man2/xhtml/gluPerspective.xml ).
The thing is, I get the projection from the Eyewear class with (for the left eye here)
projectionMatrix = Eyewear.getInstance().getProjectionMatrix(EYEID.EYEID_LEFT);
I believe that this matrix contains more information then a traditional perspective or ortho projection matrix since it also contains the information of calibration (the translation/rotation for an eye). The problem is, since the information related to translation/rotation and the information related to projection are not separated and are in the same matrix, I cannot set well the near plane and far planes which are information only related to the projection, so modifying the matrix means possibly modifying also the translation and rotation which I do not want to.
Without the eyewear SDK, I would normally use the functions I mentionned below but it is because I get the projection matrix from the class SampleApplicationSession (the class implementing UpdateCallbackInterface) but here I get it from Eyewear, therefore I was expecting to find a method to set the clipping values in the Eyewear class.
(I hope it is a little bit clearer, don't hesitate to ask if it's not)
It is really simple to get Vuforia samples working on Android Studio, I basically didn't do anything except this
Find the sample's folder and it should be fine, Android Studio is taking care of the rest. If you have any difficulties maybe you should update Android Studio? Are you sure you are using the good license key? I don't understand how you succeeded in using the normal SDK in Android Studio and not the Eyewear one sorry