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  3D Collision Detection  (Read 1150 times)
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Offline PeterNicholson

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« Posted 2013-04-22 19:08:37 »

Could anybody please help me? I Want to know, how I can check collision detection of a First Person Camera and a cube.  Roll Eyes Thanks in advance Smiley

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Offline matheus23

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« Reply #1 - Posted 2013-04-22 19:11:05 »

You could simply apply 2D AABB rules to 3D room (simply add another dimension variable...)
But that only works if you only have AABB's.

If you want arbitrary Polygons:
Use SAT 3 times. Project the 3D Shape into all directions to create 2D shapes out of them, make them convex, and check if ALL those shapes pass the SAT test.

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Offline gouessej
« Reply #2 - Posted 2013-04-22 23:30:47 »


I wrote something about that here in the section "Improvement of collisions detection". matheus' suggestion is a good and simple start. If you plan to use a first person camera in a first person shooter, you will discover this is a bit more complicated...

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Offline Agro
« Reply #3 - Posted 2013-04-22 23:31:52 »

here/ doesn't really help Wink

Offline gouessej
« Reply #4 - Posted 2013-04-23 11:11:45 »

here/ doesn't really help Wink
Thanks, I've just fixed the link.

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