POV-Ray : Newsgroups : povray.advanced-users : Matrix question : Re: Matrix question Server Time
18 May 2024 10:15:35 EDT (-0400)
  Re: Matrix question  
From: Ron Parker
Date: 25 Dec 2000 11:49:19
Message: <slrn94euki.6kk.ron.parker@fwi.com>
On 25 Dec 2000 11:11:23 -0500, Warp wrote:
>  However, if the inversion of this matrix works as expected (that is, the
>translation is also inverted as it should), then putting the translation
>where it is now has a strong mathematical basis. Which is good, of course :)

It does.  Essentially, as long as you put a '1' in the last row of the 4-d
vector, the translation gets added in to the transformation as you'd expect
it to.  The last row should always be 0,0,0,1.  Any other sort of 4-d matrix
doesn't have the same effect.

-- 
Ron Parker   http://www2.fwi.com/~parkerr/traces.html
My opinions.  Mine.  Not anyone else's.


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