Portal 2

Portal 2

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Fast Toggle Switch (5-laser design)
   
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4.203 MB
19 May, 2012 @ 10:19pm
19 May, 2012 @ 11:08pm
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Fast Toggle Switch (5-laser design)

In 1 collection by Big Dynamite Bungle 🎼
Gadgets, Machines, Switches, Timers, Logic Gates, Automation
12 items
Description
This toggle switch is based on a glitch in the game engine, which gives us "perpetual energy." The design uses:

1 pedestal switch
5 laser emitters
3 laser receivers
1 laser relay
4 angled panels

The five lasers are expensive but they spend most of their time in the off position. When you first enter the room, all of the lasers are off, ensuring they don't affect your framerate. After every other cycle of the switch, one laser is left on. Again, not a big framerate penalty there. I believe this is the fastest toggle switch you can make in the game.
5 Comments
Big Dynamite Bungle 🎼  [author] 21 Nov, 2012 @ 11:37pm 
I think I explained my reasoning somehwere on that YouTube video. I was thinking of the lasers as a power source, not just as a signal carrier. I see now that the power comes from somewhere else, which explains the confusion.
Akiva 21 Nov, 2012 @ 9:31pm 
And the pulse is because in the first one, the relay being on causes the laser to be on and the relay being off causes the laser to be off, i.e. the same, while in the second one, the relay being off causes the laser to be on and the relay being on causes the laser to be off, i.e. the opposite. It is fundamentally different.
Akiva 21 Nov, 2012 @ 9:27pm 
It's not a glitch, a very similar thing has been done in real life. The battery is connected to the relay, too, so standing off of the button does not completely shut off the power.
paladinfinitum 20 Jul, 2012 @ 12:02am 
Very cool! Though a couple of portable surfaces would be handy to get back to the beginning ledge - I'd feel dumb to finally cross the bridge only to fall into the area in front of the exit and get stuck!
Geneosis 17 Jul, 2012 @ 3:50am 
Well that's some ways the idea of the laser-only switch I did with a moving platform, but quicker and with a hinger item count I think ^^