So I've been working on a new map a little, and everything has been going smooth. But the last couple times I've tested my map the lighting went crazy. It is like full bright and is covering the entire map with light, and the glass I put on the map look like messed up mirrors. I don't know what the heck I pressed to mess the map up. Any ideas?

Edit
Nevermind, I had played a fullbright map and then never closed portal 2 and launched my new map, and it carried over the fullbrightness for whatever reason, so i just closed portal 2 and reopened and it was fine.

Tip: you can also type "mat_fullbright 0" into the console to turn it off.