Flashlight on endless runner game for mobile


I’ve used a point light in an endless runner game. The game has a horror theme, so it has to be dark and I want to create the effect of a flashlight. The problem is the lack of support for movable lights. I tried using a static point light, but it doesn’t work when I launch the game on the phone. A movable point light works but it takes up a lot of resources, so I was wondering if there’s a more efficient way to make the flashlight effect. Something like what they used in this case: goo.gl/BamdMA

Thanks in advance