POV-Ray : Newsgroups : povray.binaries.images : Smoothing bicubic_patchs. A pain. Server Time
25 Dec 2024 09:39:58 EST (-0500)
  Smoothing bicubic_patchs. A pain. (Message 35 to 37 of 37)  
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From: Bald Eagle
Subject: Re: Smoothing bicubic_patchs. A pain.
Date: 30 Aug 2020 10:55:00
Message: <web.5f4bbce39b869b611f9dae300@news.povray.org>
Thomas de Groot <tho### [at] degrootorg> wrote:

> Last night, I dreamed about Klein Bottles. That would be a hellish job
> to model I guess. ;-)

Perhaps, but of course, someone has done it.   :)
http://t-kita.net/gnuplot_povrml/

I remembered this and figured I'd post you a link to the scene code.

http://t-kita.net/gnuplot_povrml/povray-demo/povray-demo3.pov


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From: Thomas de Groot
Subject: Re: Smoothing bicubic_patchs. A pain.
Date: 31 Aug 2020 02:26:40
Message: <5f4c9820$1@news.povray.org>
Op 30/08/2020 om 16:51 schreef Bald Eagle:
> Thomas de Groot <tho### [at] degrootorg> wrote:
> 
>> Last night, I dreamed about Klein Bottles. That would be a hellish job
>> to model I guess. ;-)
> 
> Perhaps, but of course, someone has done it.   :)
> http://t-kita.net/gnuplot_povrml/
> 
> I remembered this and figured I'd post you a link to the scene code.
> 
> http://t-kita.net/gnuplot_povrml/povray-demo/povray-demo3.pov
> 

/Of course/ somebody did just that! Very nice; thanks for the links.

-- 
Thomas


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From: Thomas de Groot
Subject: Re: Smoothing bicubic_patchs. A pain.
Date: 1 Sep 2020 02:35:33
Message: <5f4debb5@news.povray.org>
Op 31/08/2020 om 08:26 schreef Thomas de Groot:
> Op 30/08/2020 om 16:51 schreef Bald Eagle:
>> Thomas de Groot <tho### [at] degrootorg> wrote:
>>
>>> Last night, I dreamed about Klein Bottles. That would be a hellish job
>>> to model I guess. ;-)
>>

>> http://t-kita.net/gnuplot_povrml/
>>
>> I remembered this and figured I'd post you a link to the scene code.
>>
>> http://t-kita.net/gnuplot_povrml/povray-demo/povray-demo3.pov
>>
> 
> /Of course/ somebody did just that! Very nice; thanks for the links.
> 

Which got me thinking that, while the modelling of the Klein bottle 
might be simple, the orientation of the face normals is not. My best 
guess would be to switch those round at the point where the bottle 
intersects itself. Modelling software (like Silo) don't like that. :-)

-- 
Thomas


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