Learn ARCore - Fundamentals of Google ARCore

Building the UI

At this point, we want to give the user the ability to clear a scene and turn off the planes. The planes are helpful to identify surfaces we can drop objects onto, but they really distract from the experience. We will do this by building a dead simple UI with a couple of buttons. Fortunately, Unity has a very powerful UI system called uGUI, which will allow us to quickly do this. Open up the Unity editor to the Main scene and follow along:

1. Click on an open area of the Hierarchy window to ensure that your selection is cleared. We do this to avoid attaching objects to other objects mistakenly.
2. From the menu, select GameObject | UI | Canvas. Name the new object as UI and ensure that the properties for this object match the ...