Calculate direction angle from two rotation matrices?

Posted by james.ingham on Stack Overflow See other posts from Stack Overflow or by james.ingham
Published on 2010-04-03T11:51:32Z Indexed on 2010/04/03 11:53 UTC
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rotation

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matrix

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algorithm

Hi,

Say I have two rotation matrices. One is taken before any rotations in my loop update method, while the second is taken after my rotation matrix update. I'm looking to use these two matrices to work out the direction of travel. Could anyone provide me with this algorithm?

Thanks

-James

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