Abstract: Systems are configured to control transitions and displays of interface objects that are selectively moved across boundary transitions of physical display screens within augmented-reality scenes. In some instances, when a virtual object instance of an interface object is moved into the bounded area of a physical display screen within an augmented-reality scene a corresponding real-world object instance of the interface object is generated and rendered within the bounded display area of the display screen. In other instances, when user input is received for moving a real-world object instance of an interface object outside of the bounded display area of a display screen within an augmented-reality scene, a corresponding virtual object instance of the interface object is generated and rendered outside of the display screen within the augmented-reality scene.