Barriers

Barriers are solid objects that prevent the player and objects from going through. There are two types of Barriers. Glass, and Grating. Glass does not allow portals, paint, and bullets from Turrets to pass through it, meanwhile, Grating allows portals, paint, and bullets from turrets. to pass through. In the Portal 2 Puzzle Creator, Barriers are called Glass, and can be changed to Grating.