english: The idea is that we could shine some light on the door, it's going to bounce, go inside the room, some of that is going to reflect back on the door, and then back to the camera.
non_english: Zamisel je v tem, da posvetimo na vrata. Svetloba se bo odbila v sobo, nekaj se je bo odbilo nazaj na vrata, in potem nazaj h kameri,