Here is another test render using the procedural cloth texture
macros I am working on.  Any comments, criticisms, suggestions
for improvement?

I am posting a zip file (macro include file + sample scene) in
povray.binaries.scene-files for those who are interested.

Could somebody please provide me with a 'uv_mapping'-able model
of wrinkled cloth for testing purposes?  I have no 3D modeller
right now and hand-coding bicubic patches is giving me headaches
:(

-Kedar

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Attachments:
Download 'clothdemo.jpg' (106 KB)

Preview of image 'clothdemo.jpg'

On Mon, 16 Sep 2002 20:14:35 +0530, Kedar Patil
<ked### [at] patilkedarcom> wrote:
> Could somebody please provide me with a 'uv_mapping'-able model
> of wrinkled cloth for testing purposes?

c:\POVRAY35\scenes\advanced\balcony\cloth.inc

ABX

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On Mon, 16 Sep 2002 20:14:35 +0530, Kedar Patil
<ked### [at] patilkedarcom> wrote:
> Here is another test render using the procedural cloth texture
> macros I am working on.  Any comments, criticisms, suggestions
> for improvement?

BTW:
http://thunder.prohosting.com/~bennett/chkrsdemo.jpg
http://thunder.prohosting.com/~bennett/checkers.zip

ABX

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> c:\POVRAY35\scenes\advanced\balcony\cloth.inc
> 
> ABX

Oops!  Forgot to check in that demo scenes directory :)

Thanks.

-Kedar

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> BTW:
> http://thunder.prohosting.com/~bennett/chkrsdemo.jpg
> http://thunder.prohosting.com/~bennett/checkers.zip
> 
> ABX

Nice patterns for printed cloth.  Unfortunately I get a "file not
found" error with the second link.  Any alternative?  The Xoom
link mentioned on the homepage is also giving 404.

-Kedar

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Kedar Patil wrote:
> 
> > c:\POVRAY35\scenes\advanced\balcony\cloth.inc
> >
> > ABX
> 
> Oops!  Forgot to check in that demo scenes directory :)
> 

Actually that cloth is fairly low quality because it had to be kept small
for filesize reasons.  It was made with clothray:

http://tofbouf.free.fr/clothray/index_en.html

BTW, have you seen:

http://www.koganet.ne.jp/~sylow/pov/checkpat.htm


Christoph

-- 
POV-Ray tutorials, IsoWood include,                 
TransSkin and more: http://www.tu-bs.de/~y0013390/  
Last updated 13 Aug. 2002 _____./\/^>_*_<^\/\.______

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On Mon, 16 Sep 2002 20:36:57 +0530, Kedar Patil
<ked### [at] patilkedarcom> wrote:
> Nice patterns for printed cloth.  Unfortunately I get a "file not
> found" error with the second link.  Any alternative?

http://news.povray.org/povray.binaries.scene-files/14633/

ABX

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> Any comments, criticisms, suggestions for improvement?

Just that I think this looks great!
Do you use bump-mapping?
Have you planned any randomness?
Render speed?

Regards,
Hugo

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On Mon, 16 Sep 2002 17:29:44 +0200 "Hugo" <hua### [at] post3teledk>
wrote:

> Do you use bump-mapping?

No.  Just slope_map.

> Have you planned any randomness?

Not yet.  Well, thinking of it, I have no idea.  What could be
randomized?  The texture is made up of 'color_map'ped pigments
for thread color and 'slope_map'ped normals to show the threads
going up and down.

> Render speed?

About six and a half minutes on P-III 997MHz 128MB RAM.

+A0.3 +W800 +H600  Two lights, one pointlight and one spotlight.
The cloth is a bicubic patch.  Other objects are simple cylinders
and a simple CSG.  Object textures are straight from metals.inc,
The silver cylinder has crackle normal.  There is a barely
visible T_Stone3 textured wall behind.

-Kedar

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This is very clever.  You might want to try and introduce some
sort of variation in the pattern, though.  Even machine-made materials would
not have a weave that is this consistent.

On the other hand, the viewer might not notice if you put it on
something out of ClothRay that looks like more realistic fabric.

Aaron

Aaron Gillies
New York City
x3rxes[^]yahoo.com

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