Adding 3D Viewer For Models In AR App

I’m building an AR app for larger objects like sheds and prefab houses. I’d like to add an option for people to view the 3D models where they can 1 finger spin and pinch to zoom on models so they can see features such as the roof that they otherwise wouldn’t be able to see during an AR session. Can anyone point me towards instruction on how to do something like this? Or even tell me what its called so I can start researching? Thanks.

I found this 3D viewer on my computer. I want it to basically function like this
https://vimeo.com/602107761

Hey there! Please refer to one of the arfoundation samples:

https://github.com/Unity-Technologies/arfoundation-samples#scale