Need simplest example of 2d sprite snapping to mesh

[eco_bach]

Can anyone point me to a simplest (ARkit) example of snapping a 2d sprite to mesh based on wherever the device camera is pointing?

ie reticle that rotates to the surface of whatever is hit by a Raycast.

I know it also involves TrackableTypes>

Difference between plane TrackableTypes?

What is the difference between the different .Plane-TrackableTypes? The definitions seem pretty vague to me. For instance, PlaneEstimated? Like, if it isn't actually a plane, what is it, and how does it work? Since there is already PlaneWithinInfinity, which to me, sounds almost the same. Also, the difference between PlaneWithinPolygon and PlaneWithinBounds? Lastly, is there a logic behind using just TrackableType.Planes? Should this be used alone, or is it just to get all the possible pla…

but can’t get anything to work on both floor and ceiling meshed surfaces.
Any help appreciated!

[Treyrannosaurus-Rex]

Connected with the team, and they suggested you check out the Mesh Placement example in GitHub - Unity-Technologies/arfoundation-demos: AR Foundation demo projects