POV-Ray : Newsgroups : povray.newusers : Rounded Rectangles ? Server Time
4 Nov 2024 13:04:08 EST (-0500)
  Rounded Rectangles ? (Message 1 to 6 of 6)  
From: Jake McDowell
Subject: Rounded Rectangles ?
Date: 28 Jul 2003 21:09:09
Message: <3f25c935$1@news.povray.org>
Can anyone point me in the right direction here ?

I'll need to use some rounded rectangles in a scene i'm working on...  i
figure i could either build it with CSG somehow [not really too good with
csg yet...]  or use a very flat superellipsoid... possibly even use csg with
a superellipsoid if needed.  Is there some easier way to do this ?  i'm just
curious as to how a more advanced user would do this.  :]

thanks in advance !


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From: Doug Eichenberg
Subject: Re: Rounded Rectangles ?
Date: 28 Jul 2003 21:18:02
Message: <3f25cb4a$1@news.povray.org>
Best bet is an f_rounded_box isosurface.  You can find a sample here:

http://www.econym.demon.co.uk/isotut/builtin1.htm

--
Doug Eichenberg
www.getinfo.net/douge
dou### [at] nlsnet


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From: Dawn McKnight
Subject: Re: Rounded Rectangles ?
Date: 28 Jul 2003 23:11:14
Message: <d-mcknight-EC778A.20111028072003@netplex.aussie.org>
In article <3f25c935$1@news.povray.org>,
 "Jake McDowell" <mcn### [at] techiecom> wrote:

> Can anyone point me in the right direction here ?
> 
> I'll need to use some rounded rectangles in a scene i'm working on...  i
> figure i could either build it with CSG somehow [not really too good with
> csg yet...]  or use a very flat superellipsoid... possibly even use csg with
> a superellipsoid if needed.  Is there some easier way to do this ?  i'm just
> curious as to how a more advanced user would do this.  :]
> 
> thanks in advance !
> 
> 

You, uh, might look in shapes.inc, at round_box ( ) ?

-- 
Dawn McKnight                               d-m### [at] spamlesscoxnet
USS Nautilus cooperative writing project: 
                                    http://members.cox.net/uss_nautilus


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From: Tim Nikias v2 0
Subject: Re: Rounded Rectangles ?
Date: 29 Jul 2003 03:21:27
Message: <3f262077$1@news.povray.org>
Isosurfaces are slow. Going with a CSG version
is better for a beginner.

-- 
Tim Nikias v2.0
Homepage: http://www.digitaltwilight.de/no_lights


> Best bet is an f_rounded_box isosurface.  You can find a sample here:
>
> http://www.econym.demon.co.uk/isotut/builtin1.htm
>
> --
> Doug Eichenberg
> www.getinfo.net/douge
> dou### [at] nlsnet
>
>


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From: ABX
Subject: Re: Rounded Rectangles ?
Date: 29 Jul 2003 03:51:12
Message: <2c9civgfk56huqfg9bdi725apm2efc57hc@4ax.com>
On Tue, 29 Jul 2003 09:17:51 +0200, "Tim Nikias v2.0" <tim### [at] gmxde>
wrote:
> Isosurfaces are slow. Going with a CSG version
> is better for a beginner.

As far as I remember earlier discussions rounded box is _faster_ when made as
isosurface (which of course is otherwise in case of other shapes) and one
isosurface takes less memory than csg. Otherwise I doubt Gilles work
http://www.irtc.org/ftp/pub/stills/2001-12-31/gt_asia.jpg could have in its
description: "Rounded isosurface boxes were used whenever possible."

ABX


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From: Tim Nikias v2 0
Subject: Re: Rounded Rectangles ?
Date: 29 Jul 2003 04:30:00
Message: <3f263088@news.povray.org>
Okay, THAT isosurface is faster, I'll believe your word
on that. Still, for a beginner who isn't really used to
using CSG, I'd say: let him practice that first. It really
is needed for POV-Ray.


-- 
Tim Nikias v2.0
Homepage: http://www.digitaltwilight.de/no_lights


> > Isosurfaces are slow. Going with a CSG version
> > is better for a beginner.
>
> As far as I remember earlier discussions rounded box is _faster_ when made
as
> isosurface (which of course is otherwise in case of other shapes) and one
> isosurface takes less memory than csg. Otherwise I doubt Gilles work
> http://www.irtc.org/ftp/pub/stills/2001-12-31/gt_asia.jpg could have in
its
> description: "Rounded isosurface boxes were used whenever possible."
>
> ABX


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