Very informative article. Very accurately all marked. I am a big fan of augmented reality and virtual reality. My friends are game developers. I will not say in what studio they work. My friends and I go every weekend to virtual reality rooms. By the way, who will be in Melbourne, then go to https://virivr.com.au/. I advise everyone. And here's an interesting quote from Wikipedia: "Vuforia is an augmented reality software development kit (SDK) for mobile devices that enables the creation of augmented reality applications. It uses computer vision technology to recognize and track planar images (Image Targets) and simple 3D objects, such as boxes, in real time. This image registration capability enables developers to position and orient virtual objects, such as 3D models and other media, in relation to real world images when they are viewed through the camera of a mobile device. The virtual object then tracks the position and orientation of the image in real-time so that the viewer's perspective on the object corresponds with the perspective on the Image Target. It thus appears that the virtual object is a part of the real-world scene. The Vuforia SDK supports a variety of 2D and 3D target types including ‘markerless’ Image Targets, 3D Multi-Target configurations, and a form of addressable Fiducial Marker, known as a VuMark. Additional features of the SDK include localized Occlusion Detection using ‘Virtual Buttons’, runtime image target selection, and the ability to create and reconfigure target sets programmatically at runtime. Vuforia provides Application Programming Interfaces (API) in C++, Java, Objective-C++ (a language utilizing a combination of C++ and Objective-C syntax), and the .NET languages through an extension to the Unity game engine. In this way, the SDK supports both native development for iOS and Android while it also enables the development of AR applications in Unity that are easily portable to both platforms. AR applications developed using Vuforia are therefore compatible with a broad range of mobile devices including the iPhone, iPad, and Android phones and tablets running Android OS version 2.2 or greater and an ARMv6 or 7 processor with FPU (Floating Point Unit) processing capabilities. Vuforia has been acquired by PTC Inc. in November 2015", source - https://en.wikipedia.org/wiki/Vuforia_Augmented_Reality_SDK. Good luck to all!