How to limit ARPlaneManager to one plane?

By default, ARPlaneManager will instantiate a plane GameObject everytime ARCore/ARKit detects a new plane. I want to limit plane detection to just one plane, and I know it's possible because other Unity apps on the Google Play Store only have one ARPlane instantiated during the plane detection phase. How do I limit ARPlaneManager to instantiating just one ARPlane GameObject?

 

You can set

planeManager.requestedDetectionMode = PlaneDetectionMode.None;

right after first plane has been detected.

But I would not recommend doing this because the first detected plane is not always the most precise one. A much better solution would be not to display tracked planes at all and draw only a 'landing pad' - a place where your AR object can be potentially placed.

 

Woahhh it's Kirill! Thanks for the response.

Do you have any links/YouTube videos I can look at to learn how to make an AR landing pad? I couldn't find any while doing a Google search.

 

I don't have any links, but the idea is simple: make a

ARRaycastManager.Raycast()

from screen center and spawn your 'landing pad' on the intersection with the first ARPlane.