Hide GameObjects under a hidden or transparent detected plane in ARFoundation

Hi,
I want to hide the game objects if the object goes under the detected plane while translating it up and down. Does anybody know how to achieve this?

 

The simplest way is to instantiate a plane with a specific material that only renders to depth buffer (and not color). Also ensure that this renders before any opaque object.

 

Thanks for the response.

 

Finally, I got a solution. Just add a material with Occlusion shader from "shader->XR/VR->Occlusion" to the plane prefab.
That's all. The shader will do the magic.
Maybe helpful for someone.

 

Where do I find this shader?