With Portal 2 coming soon I decided to watch some videos on Youtube about it and down the side I saw this video...Wow...seriously it looks like hax and cheats but its legit, there is NO editing of the game code or any methods of hax!
See what I mean?! Yes he uses many different techniques to do it but wow it looks amazing when you watch it. He has also posted around 15 videos explaining how he did it and what he does.
Short post guys sorry, gunna try and do a Daily for today when I get home :)