Interact with existing 3D object Unity ARCORE

Question

I'm looking for a way to interact with an existing GameObject (as andy in HelloAR).

I saw this post :

Detecting if an tap event with ARCore hits an already added 3d object

which partially answers the question, but I'm using the latest release ARCore Developer Preview 2 in Unity in C# not Java.

I'm learning, so I'm not looking for code but more in tutorial or explanation about the User Interact Concept in ARCORE

Answer 1

Touching 3D objects is nothing you solve using ARCore. It's in the responsibility of Unity. Everything you need is covered in this Unity tutorial https://unity3d.com/de/learn/tutorials/s/roll-ball-tutorial. It's just touching a 3D object in a Unity scene.