Beginning ARKit for iPhone and iPad: Augmented Reality App Development for iOS

© Wallace Wang 2018

Wallace WangBeginning ARKit for iPhone and iPadhttps://doi.org/10.1007/978-1-4842-4102-8_3

3. World Tracking

Wallace Wang¹ 

(1)

San Diego, CA, USA

 

Augmented reality works by tracking the real world through a camera. By identifying solid objects in the real world such as floors, tables, and walls, augmented reality can then accurately place virtual objects on the scene that create the illusion of actually being there. Even if the virtual object is nothing more than a cartoon Pokémon character, augmented reality must overlay that virtual object so the virtual object feels like it’s part of the real world seen through a camera.

To identify the location of both real and virtual objects, ARKit uses a coordinate system where the x-axis ...