Well I have read the tutorials and attempted to create "something" that I
was pretty certain
would make a rough box shape.  Instead it is perfectly square.  For example:

 isosurface {
     function { f_rounded_box(x,y,z,0,1,1,1) - f_noise3d(x*5, y*5, z*5)*
0.25 }
     pigment{Red}
     scale 0.2
 }

I wanted a sharp cornered rounded box with some turbulence to it. I felt the
second function

f_noise3d(x*5, y*5, z*5)* 0.25

(shown in the tutorial under the sphere example) should do what I wanted.
From the tutorial it
seemed to be the most likely function, but it apparently isn't.


"Christoph Hormann" <chr### [at] gmxde> wrote in message
news:3C9CACC2.D0857FB6@gmx.de...
>
>
> Patrick Dugan wrote:
> >
> > How do/can you make a isosurface box that has a "rough" surface?
>
> Have a look at:
>
> http://www-public.tu-bs.de:8080/~y0013390/pov/wtunnel.html
>
> for an example (note this is megapov syntax).
>
> The isosurface tutorial in the Povray 3.5 docs should also give sufficient
> explanation how to add 'roughness' to a shape.
>
> Christoph
>
> --
> POV-Ray tutorials, IsoWood include,
> TransSkin and more: http://www.tu-bs.de/~y0013390/
> Last updated 18 Mar. 2002 _____./\/^>_*_<^\/\.______

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