And it causes no performance hit. Not a single fps. How is that possible? The only other game I know which does this is Interstellar Marines (made with Unity), but in that game seeing another person's flashlight causes a massive performance hit, just like I would expect. However, in Dying Light my friend can shine his flashlight on 50 zombies and objects and I can see them all cast dynamic shadows on my screen and I can even enable my own flashlight at the same time and there's no performance hit at all. Mind blown? Can anyone shed some light (heh, pun) on this for me?