colision maps

codemonkey · Post by **codemonkey** » Fri Dec 30, 2005 4:51 pm

in tdr what did the programers use to make the colission maps?

Tony · Post by **Tony** » Fri Dec 30, 2005 8:16 pm

Polygons?

And by that answer I'm guessing you're talking about the "collision mesh". Which is only a low poly mesh. Around a car, for example.

codemonkey · Post by **codemonkey** » Sat Dec 31, 2005 8:18 am

yeah thats it. thanks.

Beroc-Lord of Destruction · Fri Jan 13, 2006 1:03 pm

Erm... No...

Programmers used something called an AABB trees, which isnt just polygons, it is a data structure based on a hierarchal maping of an entire object. So you could find the exact polygon you were looking for within about 6 to 8 steps as opposed to checking each polygon against the position you need it. A bit more complex the just polygons.

Tony · Post by **Tony** » Sat Jan 14, 2006 12:02 am

That was more than I knew. Interesting.

codemonkey · Post by **codemonkey** » Sat Jan 14, 2006 4:00 am

http://www.flipcode.com/articles/dpcolumn_issue05.shtml is something that gives loads of good information on AABB trees thing.

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