I'm at a point where I'd really like to replace 'texture { T_Wood1 }' with
something that looks more realistic.  I have a need for light wood, dark wood,
and painted wood.  The only example I could find of painted wood that seemed to
match what I was thinking was from an IRTC entry named 'mousetrp', but I don't
even know how you guys come up with these things.

With CSG, I can stare at the object in my hand and figure out how to add and
subtract just about everything I need.  With this, I have no clue.  If anyone
has any pointers to useful resources which will help me figure this out, I'd
really appreciate it.  Thanks!

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You may want to take a look at IsoWood.

http://www.imagico.de/iso_wood.html

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Kyle <hob### [at] gatenet> wrote:
> You may want to take a look at IsoWood.

He might have been asking about basic texturing, in which case IsoWood would be
overkill and maybe a little advanced.

Woods.inc is not a helpful file if you want to learn how to make a wood texture
- the different components of the textures are too far-flung and it's difficult
to see how they're constructed.

The best way to learn is experimentation, substituting your own colour schemes
and transformations to an existing texture. I don't know of any wood tutorials
as such, but, assuming you know the basics of POV-Ray's texturing, here's a
simple wood texture, and an object to apply it to:

#declare Wood1 = texture {
  pigment {
    wood turbulence 0.05
    color_map {
      [0 color LightWood]
      [1 color MediumWood] }
    translate x*10
    scale <1, 1, 5>
  }
  finish { ambient 0 phong 1 phong_size 15 }
  normal {
    wood 0.1 turbulence 0.05
    translate x*10
    scale <1, 1, 5>
  }
}

torus { 20, 10 texture { Wood1 } }

(LightWood and MediumWood are defined in colors.inc). The translation moves the
centre of the grain away from the origin, and the scale stretches the slight
turbulence along the grain. The normal is entirely optional, but shows off the
possibilities quite well (notice how it's exactly the same as the pigment
except for the color_map).

Assuming this was what you were after, have a play with the colours and
transformations and see what you can come up with. Keep the docs handy and you
can't go far wrong!

Bill

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Mathuin wrote:
> I'm at a point where I'd really like to replace 'texture { T_Wood1 }' with
> something that looks more realistic.  I have a need for light wood, dark wood,
> and painted wood.  The only example I could find of painted wood that seemed to
> match what I was thinking was from an IRTC entry named 'mousetrp', but I don't
> even know how you guys come up with these things.
> 
> With CSG, I can stare at the object in my hand and figure out how to add and
> subtract just about everything I need.  With this, I have no clue.  If anyone
> has any pointers to useful resources which will help me figure this out, I'd
> really appreciate it.  Thanks!
> 
> 
Try:

http://warp.povusers.org/povtips/

Altough it has more than just wood texture.

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"Bill Pragnell" <bil### [at] hotmailcom> wrote:
> Kyle <hob### [at] gatenet> wrote:
> > You may want to take a look at IsoWood.
>
> He might have been asking about basic texturing, in which case IsoWood would be
> overkill and maybe a little advanced.

True, that:

   "I definitely would not recommend this include file for a POV-Ray beginner."
   --Christoph Hormann

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"Mathuin" <mat### [at] gmailcom> wrote:
> I'm at a point where I'd really like to replace 'texture { T_Wood1 }' with
> something that looks more realistic.  I have a need for light wood, dark wood,
> and painted wood.  The only example I could find of painted wood that seemed to
> match what I was thinking was from an IRTC entry named 'mousetrp', but I don't
> even know how you guys come up with these things.
>
> With CSG, I can stare at the object in my hand and figure out how to add and
> subtract just about everything I need.  With this, I have no clue.  If anyone
> has any pointers to useful resources which will help me figure this out, I'd
> really appreciate it.  Thanks!

Check out the wood tutorial at:

http://home4.inet.tele.dk/ibras/povtips/povwood.htm

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Mathuin nous illumina en ce 2008-10-15 00:18 -->
> I'm at a point where I'd really like to replace 'texture { T_Wood1 }' with
> something that looks more realistic.  I have a need for light wood, dark wood,
> and painted wood.  The only example I could find of painted wood that seemed to
> match what I was thinking was from an IRTC entry named 'mousetrp', but I don't
> even know how you guys come up with these things.
> 
> With CSG, I can stare at the object in my hand and figure out how to add and
> subtract just about everything I need.  With this, I have no clue.  If anyone
> has any pointers to useful resources which will help me figure this out, I'd
> really appreciate it.  Thanks!
> 
> 
To get an idea of the various wood textures provided, load and render 
t_woods.ini from the portfolio folder. It will create samples of sll the 
textures from woods.inc and an html page to display them in your browser.
There ar eother wood textures in the textures.inc.

After having experimented with those, go ahead and start experimenting on your 
own. Some of the things that toy can look at are:
color_map/pigment_map/texture_map/material_map
Uneven scaling.
warp.
turbulence.
Layering of textures.


-- 
Alain
-------------------------------------------------
Destroy the Borg?  Upload Windows 95 !

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