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26 Dec 2024 13:01:10 EST (-0500)
  making a gray and white marblized object (Message 1 to 3 of 3)  
From: Wade
Subject: making a gray and white marblized object
Date: 9 Aug 2002 13:31:22
Message: <3d53fc6a$1@news.povray.org>
Would I use this texture when I am making a gray and white marblized object?
there's the texture:

texture {
 pigment { marble
   color_map {
    [0/4 color rgb <1,1,1>]
    [1/4 color rgb <1,1,1>]
    [1/4 color rgb <1,1,1>*.5]
    [2/4 color rgb <1,1,1>*.5]
    [2/4 color rgb <1,1,1>]
    [3/4 color rgb <1,1,1>*.5]
    [3/4 color rgb <1,1,1>]
    [4/4 color rgb <1,1,1>]
    }
  }
}

Wade

__________________________________________________________________ Wade
Markham ICQ#: 44258048 Current ICQ status: + More ways to contact me i See
more about me:
__________________________________________________________________


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From: Warp
Subject: Re: making a gray and white marblized object
Date: 9 Aug 2002 16:36:42
Message: <3d5427da@news.povray.org>
Wade <Zav### [at] aolcom> wrote:
> Would I use this texture when I am making a gray and white marblized object?

  If you want...

-- 
#macro N(D)#if(D>99)cylinder{M()#local D=div(D,104);M().5,2pigment{rgb M()}}
N(D)#end#end#macro M()<mod(D,13)-6mod(div(D,13)8)-3,10>#end blob{
N(11117333955)N(4254934330)N(3900569407)N(7382340)N(3358)N(970)}//  - Warp -


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From: Mike Williams
Subject: Re: making a gray and white marblized object
Date: 10 Aug 2002 03:03:03
Message: <p5vRDCAulLV9Ewzf@econym.demon.co.uk>
Wasn't it Wade who wrote:
>Would I use this texture when I am making a gray and white marblized object?
>there's the texture:
>
>texture {
> pigment { marble
>   color_map {
>    [0/4 color rgb <1,1,1>]
>    [1/4 color rgb <1,1,1>]
>    [1/4 color rgb <1,1,1>*.5]
>    [2/4 color rgb <1,1,1>*.5]
>    [2/4 color rgb <1,1,1>]
>    [3/4 color rgb <1,1,1>*.5]
>    [3/4 color rgb <1,1,1>]
>    [4/4 color rgb <1,1,1>]
>    }
>  }
>}

Marbelization usually involves turbulence. Try adding "turbulence 0.6"
or "turbulence 3" or some other value.
Marbelization also doesn't tend to have such sharp colour boundaries, so
the colour_map might be better like this:

  colour_map {
    [0/4 colour rgb <1,1,1>]
    [1/4 colour rgb <1,1,1>*.5]
    [2/4 colour rgb <1,1,1>]
    [3/4 colour rgb <1,1,1>*.5]
    [4/4 colour rgb <1,1,1>]
  }

You might also consider adding extra stripes (e.g. by splitting your
colour map into eighths instead of quarters) and varying the "*.5"
values slightly. It depends on the exact effect you are looking for.

-- 
Mike Williams
Gentleman of Leisure


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