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Intersection tests and advanced collision detection


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#1 Anonymous Poster_Anonymous Poster_*   Guests   -  Reputation:

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Posted 25 August 1999 - 05:55 AM

What is the best way do do an intersection (hitscan) test for a beam weapon against a 3D triangle. It needs to determine the XYZ position of the intersection.

What is the best way to do collision detection between freeform polygon objects (i.e. not bounding boxes).

-Denix Linelli


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#2 Anonymous Poster_Anonymous Poster_*   Guests   -  Reputation:

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Posted 25 August 1999 - 05:55 AM

For a beam weapon, you presumably want to do a ray vs. triangle test. Check out this article in Graphics Gems 1: "An Efficient Ray/Polygon Intersection", by Didier Badouel.

As for collision between polygonal meshes, that's an entire field in and of itself.





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