See thread with same subject in povray.advanced-users.

http://news.povray.org/povray.advanced-users/31052/220852/


Tor Olav

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Attachments:
Download 'bigPatch01_03.jpg' (61 KB) Download 'bigPatch01_04.jpg' (44 KB)

Preview of image 'bigPatch01_03.jpg'

Preview of image 'bigPatch01_04.jpg'

--------------( oo )--------------

Wow! This seems really nice. Did I missed the first post?
It looks like really a powerfull way to describe a complex surface.
You have a website?

--------------( oo )--------------

Architecture CAAO
http://ps.dgtic.umontreal.ca:2050/data/p0034/site

"Tor Olav Kristensen" <tor_olav_kCURLYAhotmail.com> wrote in message
news:Xns### [at] 204213191226...
>
> See thread with same subject in povray.advanced-users.
>
> http://news.povray.org/povray.advanced-users/31052/220852/
>
>
> Tor Olav
>
>


----------------------------------------------------------------------------
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>
>
>

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news:3e93374f@news.povray.org...
>
> --------------( oo )--------------
>
> Wow! This seems really nice. Did I missed the first post?
> It looks like really a powerfull way to describe a complex surface.
> You have a website?

<snip>

I asked for some help with the underlying math in the Advanced Users forum,
and Tor Olav responded there with some very useful assistance. I had put up
a temporary web site to facilitate that discussion but I've taken it down
since then. It was a page about some very early alpha test "proof of
concept" code-- in other words, junk.

I've now finished patches.inc and I'm writing up a web page or two about its
usage. That should be done either today or tomorrow, and then I'll publish
the beta version. "Beta" in this case meaning everything works, it is
suitable for general use, but that I may yet change some things depending on
user feedback (like maybe the interface could be improved or maybe some
feature I've not thought of would be nice).

To whet your appetite: patches.inc provides the PatchWork macro, which
accepts a two dimensional array of points and generates a smooth mesh by
connecting the points with bicubic patches. The PatchGrid macro does the
same kind of thing with an array of floats by using those like height data
upon a fixed grid. I've found it easy to use both with data brought in from
an Excel spreadsheet and with data generated dynamically in the .pov file
itself.

In the iceberg.gif image (attached), the waves are interference patterns of
sine waves generated in Excel and rendered through PatchWork, and the
iceberg is a modified subset of these processed with PatchGrid (with
settings that deliberately force the seams between patches to become
visible).


--
Will Woodhull
Thornhenge, SW Oregon, USA
willl.at.thornhenge.net

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Attachments:
Download 'iceberg.gif' (97 KB)

Preview of image 'iceberg.gif'

news:3e93374f@news.povray.org: 

...
> Wow! This seems really nice. Did I missed the first post?
> It looks like really a powerfull way to describe a complex surface.
> You have a website?
...

Yes, I have a website. It's here:

http://home.no/t-o-k

It contains some of my POV-Ray images and scene files, but it does
not contain the code that I used for the making of this surface.
I just did some modifications to Will's bigPatch() macro.

To see his macro you better wait for the update that he promised for
his web-site.


Tor Olav


> "Tor Olav Kristensen" <tor_olav_kCURLYAhotmail.com> wrote in message
> news:Xns### [at] 204213191226...
>>
>> See thread with same subject in povray.advanced-users.
>>
>> http://news.povray.org/povray.advanced-users/31052/220852/

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POVPatches, at http://will.thornhenge.net/povpatches/ , is a place where
you can read about, and download, three macros for use in POV-Ray. These
come bundled in patches.inc. They let the POV-Ray user build smooth
bicubic_patch meshes within POV-Ray itself.

This is now in stable beta form. Meaning that unless I get some unexpected
feedback for some really great change, the work is done.


--
Will Woodhull
Thornhenge, SW Oregon, USA
willl.at.thornhenge.net

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"In keeping with the spirit of the POV-Ray community, patches.inc is
offered freely to anyone for individual, non-commercial use. This
includes the freedom to modify or extend the work, so long as those
changes are offered to the world under these same terms."

I don't really know if this is keeping with the spirit of the POV-Ray
community.

-- 
arose.hotpo.org

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"Artis Rozentals" <art### [at] aaaapollolv> wrote in message
news:m23### [at] arosehoptoorg...
> "In keeping with the spirit of the POV-Ray community, patches.inc is
> offered freely to anyone for individual, non-commercial use. This
> includes the freedom to modify or extend the work, so long as those
> changes are offered to the world under these same terms."
>
> I don't really know if this is keeping with the spirit of the POV-Ray
> community.

What are you trying to say?


--
Will Woodhull
Thornhenge, SW Oregon, USA
willl.at.thornhenge.net

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Hey Tor Olav!

> http://home.no/t-o-k

Oh my god! I already knew some of your images, but all the others are so
great, too. I espescially like you're textures. They look so real. You
aren't going to write a tutorial about how to make realistic looking
textures, are you? Or perhaps some little tips for a texturizing-newbie like
me?

thanks & keep up the good work
florian

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I really like the photographs of the old machines!

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