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JohanK

Separating Axis Test

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Hi, Is there a good explaination to this method or maybe a simple implementation somewhere? Thanks /Johan

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I''ve never heard of this test! Perhaps I know it by some other name. Could you explain what the test is supposed to test for please?

Thanks,

Timkin

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Objectcollision... Box to box.

Got the name from Gino Van Den Bergens paper "Efficient Collision Detection of Complex Deformable Models using AABB Trees". (Nice title )


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hmmm, do you mean that you align the bounding box to an arbitary axis to encompass the model ??

Its my duty, to please that booty ! - John Shaft

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I guess I mean that.
Projecting the boxex it to 15 different axis (axises? ) to see if all overlap, or something like that.

The main question is, how do you calculate these axis''s... (Gotta brush up my 3d-english)

/Johan

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Guest Anonymous Poster
you do the same exact transformations for the bounding box as you did for the object, thus they shall end up centered upon each other.

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quote:
Original post by MisterAnderson42
There are many docs and code for the separating axis tests at www.magicsoftware.com


Thanks for the link MA42... that''ll help me figure out whether I understand what this ''test'' is!

Timkin

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I''m still having trouble finding a good explanation to this. How do you determine these 15 axis?

I''ll keep looking...

Thanks
/Johan

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Check out my webpage (The physics docs):

http://homepage.ntlworld.com/j.owens1/Main.html

It explains it however the explanation might not be the best.

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