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  Probably a stupid question (Message 1 to 9 of 9)  
From: Francois Labreque
Subject: Probably a stupid question
Date: 10 Oct 2000 22:50:36
Message: <39E3D432.8CD16BEA@attglobal.net>
Can I transform an object like this (for example):

 ------            ----------
|      |          |         /
|      |  ----->  |        /
|      |          |       /
|      |          |      /
 ------            -----

Using either straight POV-Ray or MegaPOV?

If this is in a FAQ somewhere, I apologize.  I remember reading about
non-uniform transformations somewhere, but I don't remember where or
what.

-- 
Francois Labreque | And a four year old carelessly banging on a toy
     flabreq      | piano is not only 'music', it's probably the last
        @         | moment of 'artistic purity' they'll ever enjoy
  attglobal.net   | before outside influences start corrupting their
                  | expression.    - Chris R.


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From: Ron Parker
Subject: Re: Probably a stupid question
Date: 10 Oct 2000 22:56:14
Message: <slrn8u7ljk.2fv.ron.parker@fwi.com>
On Tue, 10 Oct 2000 22:45:06 -0400, Francois Labreque wrote:
>If this is in a FAQ somewhere, I apologize.  I remember reading about
>non-uniform transformations somewhere, but I don't remember where or
>what.

It's in the VFAQ.  The short answer is no.

-- 
Ron Parker   http://www2.fwi.com/~parkerr/traces.html
My opinions.  Mine.  Not anyone else's.
Proudly not helping RIAA and SDMI steal my rights -- 
  http://www.eff.org/Misc/EFF/Newsletters/EFFector/HTML/effect13.08.html


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From: Francois Labreque
Subject: Re: Probably a stupid question
Date: 10 Oct 2000 23:01:57
Message: <39E3D6DD.E992CDFB@attglobal.net>
Ron Parker wrote:
> 
> On Tue, 10 Oct 2000 22:45:06 -0400, Francois Labreque wrote:
> >If this is in a FAQ somewhere, I apologize.  I remember reading about
> >non-uniform transformations somewhere, but I don't remember where or
> >what.
> 
> It's in the VFAQ.  The short answer is no.

Thanks.

-- 
Francois Labreque | And a four year old carelessly banging on a toy
     flabreq      | piano is not only 'music', it's probably the last
        @         | moment of 'artistic purity' they'll ever enjoy
  attglobal.net   | before outside influences start corrupting their
                  | expression.    - Chris R.


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From: Warp
Subject: Re: Probably a stupid question
Date: 11 Oct 2000 05:08:46
Message: <39e42e1d@news.povray.org>
If you create your object as a triangle mesh, you can simulate that kind
of transformation by moving the vertices (as most mesh modellers do).
  There's even an utility for this:
http://www.geocities.com/ccolefax/pcm.html

-- 
main(i,_){for(_?--i,main(i+2,"FhhQHFIJD|FQTITFN]zRFHhhTBFHhhTBFysdB"[i]
):_;i&&_>1;printf("%s",_-70?_&1?"[]":" ":(_=0,"\n")),_/=2);} /*- Warp -*/


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From: Margus Ramst
Subject: Re: Probably a stupid question
Date: 11 Oct 2000 15:04:09
Message: <39E4AC2E.C2CD34F1@peak.edu.ee>
Francois Labreque wrote:
> 
> Can I transform an object like this (for example):
> 

You could probably do it with isosurfaces (AFAICS by applying your
transformation function to the (x,y,z) parameters of the isosurface function).

-- 
Margus Ramst

Personal e-mail: mar### [at] peakeduee
TAG (Team Assistance Group) e-mail: mar### [at] tagpovrayorg


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From: Warp
Subject: Re: Probably a stupid question
Date: 12 Oct 2000 11:43:59
Message: <39e5dc3f@news.povray.org>
Margus Ramst <mar### [at] peakeduee> wrote:
: AFAICS

  What does that mean?

-- 
main(i,_){for(_?--i,main(i+2,"FhhQHFIJD|FQTITFN]zRFHhhTBFHhhTBFysdB"[i]
):_;i&&_>1;printf("%s",_-70?_&1?"[]":" ":(_=0,"\n")),_/=2);} /*- Warp -*/


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From: Marc-Hendrik Bremer
Subject: Re: Probably a stupid question
Date: 12 Oct 2000 11:50:49
Message: <39e5ddd9$1@news.povray.org>
"as far as I can say" ?

Warp schrieb in Nachricht <39e5dc3f@news.povray.org>...
>Margus Ramst <mar### [at] peakeduee> wrote:
>: AFAICS
>
>  What does that mean?


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From: Margus Ramst
Subject: Re: Probably a stupid question
Date: 12 Oct 2000 11:58:25
Message: <39E5D22B.1B87BA9C@peak.edu.ee>
Warp wrote:
> 
> Margus Ramst <mar### [at] peakeduee> wrote:
> : AFAICS
> 
>   What does that mean?
> 

As Far As I Can See

-- 
Margus Ramst

Personal e-mail: mar### [at] peakeduee
TAG (Team Assistance Group) e-mail: mar### [at] tagpovrayorg


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From: Matt Giwer
Subject: Re: Probably a stupid question
Date: 21 Oct 2000 18:05:18
Message: <39F21327.B8D16938@ij.net>
Francois Labreque wrote:
> 
> Can I transform an object like this (for example):
> 
>  ------            ----------
> |      |          |         /
> |      |  ----->  |        /
> |      |          |       /
> |      |          |      /
>  ------            -----
> 
> Using either straight POV-Ray or MegaPOV?
> 
> If this is in a FAQ somewhere, I apologize.  I remember reading about
> non-uniform transformations somewhere, but I don't remember where or
> what. 

	You can go to 
 
>  ------                ------
> |      |             /      /
> |      |  ----->    /      /
> |      |           /      /
> |      |          /      /
>  ------            -----

	And make your object the union of the original and the skewed. 

-- 
BBN decides to enforce patent on @.
Files suit against everyone for back royalties at 
1 penny per email. Details to follow.
	-- The Iron Webmaster, 130


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