Chapter 6. Make It Interactive – Create the User Experience

Over the course of the previous chapters, we've learned the essentials of creating augmentations using the two most common AR approaches: sensor-based and computer vision-based AR. We are now able to overlay digital content over a view of the physical world, support AR tracking, and handle account registration (on a target or outdoors).

However, we can merely navigate the augmented world around them. Wouldn't it be cool to allow the users to also interact with the virtual content in an intuitive way? User interaction is a major component in the development of any application. As we are focusing here on the user interaction with 3D content (3D interaction), the following are three main categories of interaction techniques that can be developed:

• Navigation: Moving around a scene and selecting a specific viewpoint. In AR, this navigation is done by physical motion (such as, walking on the street or turning a table) and can be complemented...