Dynamic lights are expensive, using sprites with a modulate blend material you can multiply screen colors behind the sprite and use depth masking to fake a light radius, cheap and can work surprisingly well. #screenshotsaturday #UE4 #gamedev #indiedev
Using modulate blending, make sure you clamp the result in a range above 1 for this to work right. Modulate blending without depth testing is also great for various glow effects. #screenshotsaturday #UE4 #gamedev #indiedev 
Here's a more practical example, core of the sprite is not being masked by depth so it's always visible, depth masked glows around geometry look pretty convincing as impressions of lighting. #screenshotsaturday #UE4 #gamedev #indiedev
