Subject:
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Re: Inverse matrix?
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Newsgroups:
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lugnet.cad.ray, lugnet.cad
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Date:
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Sat, 7 Apr 2007 23:47:34 GMT
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Viewed:
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620 times
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> Just take the transpose of the 3x3 world rotation matrix and it should work as
> the inverse. Transpose means swap diagonals M[1,2] <=> M[2,1] etc.
I mean swap the OFF-diagonals, leave the diagonals as is.
> If this doesn't work I've misunderstood you.
>
> Tim
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Message has 1 Reply:
 | | Re: Inverse matrix?
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| (...) I learned my matrix math from a 3d game programming book and I have no idea what the diagonals are... I was going to look it up but I got Travis' code to work! (URL) might still look it up as I may need to know about it) James (18 years ago, 7-Apr-07, to lugnet.cad.ray, lugnet.cad)
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Message is in Reply To:
| | Re: Inverse matrix?
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| (...) Just take the transpose of the 3x3 world rotation matrix and it should work as the inverse. Transpose means swap diagonals M[1,2] <=> M[2,1] etc. If this doesn't work I've misunderstood you. Tim (18 years ago, 7-Apr-07, to lugnet.cad.ray, lugnet.cad)
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