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Can anyone point me to resources that explain or enable one to raytrace
cloth/curtains?
Jon
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You don't specify what raytracer you want to use. Ken will
help you with locating the cloths tuff for POV in a few
minutes form now.
Also do you need animated cloth/curtains or stills? If
stills just use sPatch or Hamapatch.
Ken?
-peter
--
Current obsession: "Ballet pour ma fille."
http://www.applesnake.net
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"Dearmad" <dea### [at] applesnake net> wrote in message
> You don't specify what raytracer you want to use. Ken will
POV. ... ? Of course. I don't understand.
> help you with locating the cloths tuff for POV in a few
> minutes form now.
OK.
> Also do you need animated cloth/curtains or stills? If
> stills just use sPatch or Hamapatch.
Stills. I am doing some home remodeling and am using POV-Ray to preview the
tile/wall treatments, etc. I'd like to look at curtains, too.
THanks.
Jon
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"Jon Berndt" <jsb### [at] hal-pcorg> wrote in message
news:3c2ba2d2$1@news.povray.org...
> Can anyone point me to resources that explain or enable one to raytrace
> cloth/curtains?
>
> Jon
>
For a nice velvet material (well HE calls it fur, but what does he know, he only
wrote the code), try Rune's website:
http://rsj.mobilixnet.dk/3d/goodies/goodies.html
For modelling curtains etc. you can either use height-fields, bicubic-patches
or, if you use the 3.5 beta or megapov, isosurfaces.
For patches, you need a modeller. Popular modellers are spatch
http://www.geocities.com/getspatch/index.html
and hamapatch
http://www.geocities.com/hamapatch/program/index.html
(hama is a jap. program, but includes a eng. install iirc - the above page is
eng. with a good set of hama links).
Personally, I would recommend isosurfaces for simple surfaces such as curtains
or cushions, but patches for more complex shapes such as shaped cushions etc.
The advantage of isosurfaces is that you can deform the surface with noise (aka
wrinkled material) as well as defining the folds etc.
Basically, if you like mucking about with math, then use isos, otherwise, if you
prefer modelling with a mouse go with hama or spatch (IMHO)
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You could also look at
http://www.enst.fr/~jberger/cloth/cloth.html
It's a cloth simulator Jérôme M. Berger wrote a few month ago. Look at
p.b.utilities for more details.
Marc-Hendrik
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On Thu, 27 Dec 2001 17:52:56 -0800, Dearmad wrote...
> You don't specify what raytracer you want to use. Ken will
> help you with locating the cloths tuff for POV in a few
> minutes form now.
No he won't, he's off on holiday in Oregon, seeing his family.
Bye for now,
Jamie.
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That page seems to have disappeared.
Jon
"Marc-Hendrik Bremer" <Mar### [at] t-onlinede> wrote in message
news:3c2c5879@news.povray.org...
> You could also look at
> http://www.enst.fr/~jberger/cloth/cloth.html
>
> It's a cloth simulator Jérôme M. Berger wrote a few month ago. Look at
> p.b.utilities for more details.
>
> Marc-Hendrik
>
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"Jon Berndt" <jsb### [at] hal-pcorg> a écrit dans le message de news:
3c2ba2d2$1@news.povray.org...
> Can anyone point me to resources that explain or enable one to raytrace
> cloth/curtains?
Try clothray. It's a patch of Povray 3.1 by Christophe Bouffartigue (based
on Megapov) but you can very well create the cloth with it and then use it
in Povray 3.5. The cloth object is uv-mapped too.
Download here:
http://tofbouf.free.fr/clothray/download_en.html
About making a curtain, see the end of this page (how to create
constraints):
http://tofbouf.free.fr/clothray/index2_en.html
G.
--
**********************
http://www.oyonale.com
**********************
- Graphic experiments
- POV-Ray and Poser computer images
- Posters
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There is a windows version for cygwin still available under
http://www.schunter.etc.tu-bs.de/~chris/cloth/index.html
Some Doku is included in the package IIRC.
Marc-Hendrik
Jon S.Berndt schrieb in Nachricht <3c2ca91f$1@news.povray.org>...
>That page seems to have disappeared.
>
>Jon
>
>"Marc-Hendrik Bremer" <Mar### [at] t-onlinede> wrote in message
>news:3c2c5879@news.povray.org...
>> You could also look at
>> http://www.enst.fr/~jberger/cloth/cloth.html
>>
>> It's a cloth simulator Jérôme M. Berger wrote a few month ago. Look at
>> p.b.utilities for more details.
>>
>> Marc-Hendrik
>>
>
>
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Gilles Tran" <tra### [at] inapginrafr> wrote in message
> "Jon Berndt" <jsb### [at] hal-pcorg> a écrit dans le message de news:
> > Can anyone point me to resources that explain or enable one to raytrace
> > cloth/curtains?
>
> Try clothray. It's a patch of Povray 3.1 by Christophe Bouffartigue (based
> on Megapov) but you can very well create the cloth with it and then use it
> in Povray 3.5. The cloth object is uv-mapped too.
Thanks. What is UV Mapping? Is this in a FAQ somewhere?
Jon
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"Jon Berndt" <jsb### [at] hal-pcorg> a écrit dans le message de news:
3c2cf7c3$1@news.povray.org...
> Thanks. What is UV Mapping? Is this in a FAQ somewhere?
It's explained in the Megapov and 3.5 docs.
UV mapping is a way of texturing where the texture follows the surface of
the object. Basically, if you want the texture on the cloth to follow the
folds and other deformations, you'll need UV mapping.
G.
--
**********************
http://www.oyonale.com
**********************
- Graphic experiments
- POV-Ray and Poser computer images
- Posters
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"Gilles Tran" <tra### [at] inapginrafr> wrote in message
> UV mapping is a way of texturing where the texture follows the surface of
> the object. Basically, if you want the texture on the cloth to follow the
> folds and other deformations, you'll need UV mapping.
OK, thanks. That makes sense. What does the UV stand for? To me, that means
Ultra-Violet. I have been trying to think of what UV could otherwise stand
for and I am stumped. And I work as a subcontractor to *NASA*, the world
leader in obfuscative acronyms! ;-)
Jon
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On Wed, 2 Jan 2002 13:33:31 -0600, "Jon Berndt" <jsb### [at] hal-pcorg>
wrote:
>OK, thanks. That makes sense. What does the UV stand for?
Local / parametric / material / surface coordinates. XYZ are the
coordinates of a point in 3D, but if restricted on a defined surface,
a point can be defined by just longitude and latitude, i.e. U and V.
Knowing the UV coordinates and the surface, the XYZ coordinates can be
found, and vice versa.
Of course you can have a third local coordinate, W, but it makes no
sense for surfaces, only for volumes.
Peter Popov ICQ : 15002700
Personal e-mail : pet### [at] vipbg
TAG e-mail : pet### [at] tagpovrayorg
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This link seems to have disappeared. Does anyone have any idea where it
went?
Jon
"Marc-Hendrik Bremer" <Mar### [at] t-onlinede> wrote in message
news:3c2c5879@news.povray.org...
> You could also look at
> http://www.enst.fr/~jberger/cloth/cloth.html
>
> It's a cloth simulator Jérôme M. Berger wrote a few month ago. Look at
> p.b.utilities for more details.
>
> Marc-Hendrik
>
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