Normal vector of a face loaded from an FBX model during collision?

Posted by Corey Ogburn on Game Development See other posts from Game Development or by Corey Ogburn
Published on 2011-06-21T16:20:38Z Indexed on 2011/06/21 16:31 UTC
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XNA

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collision-detection

I'm loading a simple 6 sided cube from a UV-mapped FBX model and I'm using a BoundingBox to test for collisions. Once I determine there's a collision, I want to use the normal vector of the collided surface to correct the movement of whatever collided with the cube. I suppose this is a two-part question:

1) How can I determine which face of the cube was collided with in a collision?

2) How can I get the normal vector of that surface?

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