# This repo is intended to provide more advanced demos for AR Foundation outside of the [Samples Repo](https://github.com/Unity-Technologies/arfoundation-samples/).
For questions and issues related to AR Foundation please post on the AR Foundation Sample [issues](https://github.com/Unity-Technologies/arfoundation-samples/issues) and **NOT** in this repo. You can also post on the [AR Foundation Forums](https://forum.unity.com/forums/handheld-ar.159/)
# arfoundation-demos
AR Foundation demo projects.
The `master` branch is compatible with Unity 2019.3
A sample app showing off how to use Image Tracking to track multiple unique images and spawn unique prefabs for each image.
The script [`ImageTrackingObjectManager.cs`](https://github.com/Unity-Technologies/arfoundation-demos/blob/master/Assets/ImageTracking/Scripts/ImageTrackingObjectManager.cs). handles storing prefabs and updating them based on found images. It links into the `ARTrackedImageManager.trackedImagesChanged` callback to spawn prefabs for each tracked image, update their position, show a visual on the prefab depending on it's tracked state and destroy it if removed.
The script [`DistanceManager.cs`](https://github.com/Unity-Technologies/arfoundation-demos/blob/master/Assets/ImageTracking/Scripts/DistanceManager.cs) checks the distances between the tracked images and displays an additional 3D model between them when they reach a [certain proximity.](https://github.com/Unity-Technologies/arfoundation-demos/blob/master/Assets/ImageTracking/Scripts/DistanceManager.cs#L40)
the script [`NumberManager.cs`](https://github.com/Unity-Technologies/arfoundation-demos/blob/master/Assets/ImageTracking/Scripts/NumberManager.cs) handles setting up a [`contraint`](https://docs.unity3d.com/Manual/Constraints.html) (in this case used to billboard the model) on the 3D number objects and provides a function to enable and disabling the rendering of the 3D model.
GitHub