I need to invert a transformation matrix to the exact opposite.
Does anybody have a piece of code that can help me out?
Matrix transformation math is not really my strength.
Thanks!

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Le 26/08/2010 01:50, CAD-Andi a écrit :
> I need to invert a transformation matrix to the exact opposite.
> Does anybody have a piece of code that can help me out?
> Matrix transformation math is not really my strength.
> Thanks!
> 

That's what the SDL is made for: add "inverse" after your matrix, inside
the transform block.

http://www.povray.org/documentation/view/3.6.1/49/

-- 
A: Because it messes up the order in which people normally read text.<br/>
Q: Why is it such a bad thing?<br/>
A: Top-posting.<br/>
Q: What is the most annoying thing on usenet and in e-mail?

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Le_Forgeron <lef### [at] freefr> wrote:
> Le 26/08/2010 01:50, CAD-Andi a écrit :
> > I need to invert a transformation matrix to the exact opposite.
> > Does anybody have a piece of code that can help me out?
> > Matrix transformation math is not really my strength.
> > Thanks!
> >
>
> That's what the SDL is made for: add "inverse" after your matrix, inside
> the transform block.
>
> http://www.povray.org/documentation/view/3.6.1/49/
>
> --
> A: Because it messes up the order in which people normally read text.<br/>
> Q: Why is it such a bad thing?<br/>
> A: Top-posting.<br/>
> Q: What is the most annoying thing on usenet and in e-mail?

Clear case of "Should have read the Manual!"
Thanks a bunch! Saved me big headaches! Would have been nice though if the
inverse command was mentioned somewhere else and not only in the SYNOPSIS. of
transformations.
Still, Povray rulez!

Thanks again!

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