POV-Ray : Newsgroups : povray.text.scene-files : Procedural craters source Server Time
1 Nov 2024 03:14:54 EDT (-0400)
  Procedural craters source (Message 1 to 3 of 3)  
From: Johannes Dahlstrom
Subject: Procedural craters source
Date: 5 Nov 2002 03:06:31
Message: <3dc77c06@news.povray.org>
The functions used to produce the craters pattern used in my craters test 
image in p.b.i.


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From: Dennis Miller
Subject: Re: Procedural craters source
Date: 6 Nov 2002 22:55:59
Message: <3dc9e44f$1@news.povray.org>
"Johannes Dahlstrom" <sad### [at] tkukoulufi> wrote in message
news:3dc77c06@news.povray.org...
> The functions used to produce the craters pattern used in my craters test
> image in p.b.i.

Hi. I tried your source with lights, camera and the following and got only a
black screen. Is there something special you are doing with the camera,
perhaps?
thanks,
.d

isosurface {
  function     { Craters(x,y,z)}
  contained_by { box { -5, 5 } }
  accuracy    0.1  max_gradient 7
  texture {
    pigment {     color rgbf < 0.90*clock, 0.55 , 0.55 , 0.9 >  }
   finish  {ambient 0.1 diffuse 0.75 specular .75 roughness .05 }
   normal  {granite .2 scale .5}
  }
  translate    <0,2.5,0>
}


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From: hughes, b 
Subject: Re: Procedural craters source
Date: 7 Nov 2002 01:32:46
Message: <3dca090e@news.povray.org>
You forgot to difference it from a plane or sphere or something. Put:

y-

in front of the Craters(x,y,z) and it will show up. I had to scale the
isosurface up to see the craters though.
--
Farewell,
Bob


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