This array is populated with all of the Game Objects that this Camera has rendered in the previous (or current, depending on when you inspect it) frame.
It is cleared at the start of
Camera.preUpdate, or if the Camera is destroyed.
You should not modify this array as it is used internally by the input system, however you can read it as required. Note that Game Objects may appear in this list multiple times if they belong to multiple non-exclusive Containers.