In this article
https://social.msdn.microsoft.com/forums/en-us/244810b3-691a-4f3d-b4d7-616d9cc4c85d/xamarin-augmented-reality-in-xamarinforms?forum=msdnmagazine
It is not work . It only display a transparent viewController and display nothing since I click the Click Me Button
is it because the 3d file not right?
why is it?