This map is a concept of a set of maps that I may work on in the future. It introduces the concept of two pairs of portals. One pair is controlled by the player with the ASHPD, and the other pair is placed by the chamber through the use of portal frames. The player must use the combination of all four portals to achieve each chamber's goal.

In this first chamber, the player is equipped with a disabled ASHPD. The test chamber spawns all four necessary portals when the appropriate triggers are activated. Above each frame is a number. This number represents which pair the portal belongs to.

The only reason I provide the player with a disabled ASHPD is due to the fact that when Chell holds an object without the device, it looks so unrealistic. ;p

Thanks Omnicoder for the Chamber Sign Maker!

File Name: sp_quadrilateral1.rar
File Size: 3.02 MiB
Click here to download Quadrilateral Part 1 [Concept]

No offense but this was the biggest waste of time i have had playing any portal game/map. Why not make a coop map (where you control portals) instead?

easy to get stuck too after all the portals shut down.

It's a proof of concept, not a level. It taught me two lessons: that a different pair of portals should have different colours, or else ; also that triggers that can trap you if you move, should activate immediately and not after 3 seconds.

I started playing custom maps and record me playing them. It's neither a perfect run nor do I have to have solved the map in the way it's meant to solve it. I play the maps "blind", that means I've never been in them before and play them for the very first time. I also give a little feedback for the map in the video description.

Maybe you are interested in the fact, that I played your map: http://www.youtube.com/watch?v=dPBNpU4duRw