How to select objects not on the camera, but on the terrain?

Question

Unity

Hello!
There is a working script for selecting objects, but the problem is that the selection area is attached to the camera, that is, you can select only those objects that are visible only on the camera.
How to fix this and achieve the effect when you put a dot in space and further selection goes relative to it throughout the terrain?

Answer 1

forum.unity3d.com/threads/how-do-i-get-raycast-to-...