The Doctor feed is a practical feature of our gaming engine. We set up the environment to show the patients experience on a monitor, and use a camera to record a live feed of the doctor/medical staff who can communicate with the patient by pressing a button. This communication is seen in the game as
a small screen over the actual game while playing. The patient sees the doctor as another 3D character and the game is paused in the background until the doctor finishes giving the instruction.