Portal 2 - Pneumatic Diversity Vent and Laser cutting into the level





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Published on Jun 2, 2011

I was a bit stuck on ideas for another map. So, I made more ways for test elements (faith plates, lasers, excursion funnels, etc) to be hidden and introduced into a map (sliding panels, rotating away, etc). That gave me the laser cutting into the level.

After that, I still had no idea what I wanted to do. So, a few websearches later, I found a tutorial for making Pneumatic Diversity Vents (http://developer.valvesoftware.com/wi...). Fun! A quick allusion to the official Valve video later and, poof, instant map...kind of.

The panels are physboxes connected by hinges, like in Valve's replacement panel instances, only smaller. There are 3 hinges that can trigger the wall ripping off. Once exposed to the vacuum, those 3 hinges break instantly and send delayed outputs to break the rest of the wall. The delays are there for both effect and to help prevent clogging.

There some problems with my vents right now. They can be easily clogged by the panels that break off and the particle system randomly rotates 90 degrees and moves to the center of the room (the system is placed in the tube in Hammer).

I should probably place a projected texture in the level facing the replacement panels or move the lights further from the panels to make them blend in more.

1 Week, 5 maps. I need to spend time learning a slew of programming tools, languages, etc (woohoo, job app requirements). So, I'll try to expand upon what I've already made, but updates may not be as frequent.


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