currently I work on a AR prototype (Unity 2017.4.6 -> Vuforia 7.0.57) and have a more general question: How can we switch or decide, which camera vurforia uses? I know, that there is the general choice between front default, rear, back....
...but, modern device often have multiple cameras, like P20 or Honor 6x, Honor 7x - I tested my app on the 7x and noticed, that it automatically uses the camera with lower fov and more depth of field - which is not what I expected nor wanted.
Do you have experiences or ideas to this topic?
Another question, which is for some time in my mind: there are some devices with bad or even no camera. It would be great (for an AR installation for example) to connect a external cam (webcam?) to the usb port from the android device and use this camera input with vuforia!