You are using an out of date browser. It may not display this or other websites correctly. You should upgrade or use an alternative browser.
ValveTime.co.uk | Valve News, Forums, Steam
How to make "screens" that you could see npc:s or other players fighting? And how is it possible to change view? Some screens in HL2 singleplayer change view when u press "use".
And is it possible to make mirrors, that when you walk in front of it, you could see youurself (surprise!!).