Our AR graphics will be parented by a Root game object and then positioned when the AR Prompt detects a screen touch. We can add Root now. We'll start with a temporary Cube as our content, then add the real graphics next:

1. Temporarily disable the Main Canvas' Content Scroll View panel in Hierarchy.
2. In Hierarchy, Create Empty named Root, reset its Transform, and set its Position Z = 2.
3. Create 3D | Cube, and set its Transform Scale to 0.1, 0.1, 0.1.

At this point we can import the ChangeATire-ARGraphics package we have provided with the files for this chapter of the book.

4. Choose Assets | Import Package | Custom Package... to import the package.

Next, we can continue to build our project.