NEW! Steam Workshop link:
Just click Subscribe, launch Portal 2, select "Comunity Test Chambers" from the main menu, then select "Play Community Test Chambers". The map should show up on the next screen, ready to play.
Thanks to TheMarcemGuy's video for inspiration:
Thanks to PC Gamer for featuring me in their January 2012 issue (page 87)!
When I found out the Source Engine used in Portal 2 supported the same zone portals I originally used in my America's Army map, I decided to remake the level. Well, here it is.
The portals work pretty much the same way they did in America's Army, but they don't flicker when you walk through them, and you can shoot portals through them too. I don't know if sound travels through them, though.
These portals work identically to the standard portals you're used to in Portal, except they're exactly as big as you want, always rectangular, and don't have a border. There's still the problem with lighting not matching up, which you can see at a few points. I did my best to match them up though, especially in the upside-down catwalk room.