POV-Ray : Newsgroups : povray.unofficial.patches : image_pattern Server Time
2 Sep 2024 16:15:36 EDT (-0400)
  image_pattern (Message 11 to 13 of 13)  
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From: Nathan Kopp
Subject: Re: image_pattern
Date: 27 Jan 2000 02:56:10
Message: <388ffa1a@news.povray.org>
Bob Hughes <omn### [at] hotmailcom?subject=PoV-News:> wrote...
> This gets edited into the patterns.htm file I have here immediately,
thanks
> Nathan.
> Didn't know about the "more than 256" thing.  Great, but I don't see how
it
> could.  After all, if there's only a 256 color palette or one 8-bit plane
of a
> 24bit image how does it apply textures to other than those specific areas
of a
> image then?  A kind of interpolation?

But let's just imagine that you're using a 36 bit PNG file as your input
file, instead of a 24 bit TGA.  (now, I have not yet looked to see if POV
will support a 36 bit image internally, but if not now, it probably will in
the future)

-Nathan


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From: Fabian Brau
Subject: Re: image_pattern
Date: 27 Jan 2000 03:58:31
Message: <38900982.893A3304@umh.ac.be>
Thanks All :)

I have played with image_pattern and well (I think :)) understand this!
Ok this is an interesting feature! For some use it is more interesting 
than material_map for many reason!
Great job :)!

Fabian.

Fabian Brau wrote:
> 
> Hello,
> 
> someone can tell me the difference between image_pattern and
> material_map? What can image_pattern do that material_map cannot?
> A simple example would be cool :)
> 
> Thanks
> 
> Fabian.


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From: Chris Huff
Subject: Re: image_pattern
Date: 27 Jan 2000 07:21:44
Message: <chrishuff_99-CDD649.07222527012000@news.povray.org>
In article <388faaaa@news.povray.org>, "Nathan Kopp" <Nat### [at] Koppcom> 
wrote:

> 1) it is not limited to textures; it can be used directly with normals 
> and pigments

And don't forget isosurfaces. Although you could use an image_map 
pigment, image_pattern would probably be more versatile(or at least far 
easier to get certain effects with).

-- 
Chris Huff
e-mail: chr### [at] yahoocom
Web page: http://chrishuff.dhs.org/


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