3.4.20 – Understanding ARfoundation Image Tracking

After working through some examples / tutorials last night, I decided to sift back through the AR Tracked Image Manager documentation to see about the following:

•  multiple targets via an XRReferenceImageLibrary 
  • encountered issues when sifting through the ARfoundation example via GitHub ❤ mostly worked though! Was having trouble showing the last 3 I added
• dynamic + modifiable / mutable libraries in runtime 
  • how to dynamically change the image library live via ios camera or camera roll  (most likely through a MutableRuntimeReferenceImageLibrary)

Helpful References:

• Experiments in AR ITP class documentation 
• Unity ARFoundation documentation – Trackables -> Image Tracking -> tracked Image Manager 
• The wonderful Dilmer – Unity3d AR Foundation Playlist (Thank you Maya & Lydia!)

Looking through the ARfoundation Trackables / ImageTracking Documentation: 

• AR Tracked Image Manager 
  • The tracked image manager will create GameObjects for each detected image in the environment. Before an image can be detected, the manager must be instructed to look for a set of reference images compiled into a reference image library. Only images in this library will be detected

• Reference Library  
  • XRReferenceImageLibrary
  • RuntimeReferenceImageLibrary
    • A RuntimeReferenceImageLibrary is the runtime representation of an XRReferenceImageLibrary
    • You can create a RuntimeReferenceImageLibrary from an XRReferenceImageLibrary with the ARTrackedImageManager.CreateRuntimeLibrary method