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This is the code (and my problem) :-(
sky_sphere {pigment {gradient y color_map { [0.0 color rgb <0.7,0.7,1.0>]
[1.0 color blue 0.5]}}}
light_source {<400.0, 700.0, -200.0>1.0}
camera {location <0.0, 1.0, -5.0> look_at <0.0, 0.4, 0.0>}
#declare f1 = function {pattern {bozo scale 2.0 turbulence 0.5 scale 0.1}}
isosurface {function{y - f1(x, y, z)*0.2}
accuracy 0.0001
max_gradient 3.0
pigment {rgb <0.8, 0.8, 0.75>}
scale <10.0, 10.0, 10.0>
translate -y*2.0
}
How can I make it a (pseudo) infinite plane (terrain...) without loss of
quality due to the pattern scalling (if I scale the isosurface, the pattern
functions is scalled to...)
I just want to make terrains like Christoph Hormann does ("The landscape of
the week")
Thanks.
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> How can I make it a (pseudo) infinite plane (terrain...) without loss of
> quality due to the pattern scalling (if I scale the isosurface, the
pattern
> functions is scalled to...)
Modify the contained_by box (check the documentation for more info). You
can't make it infinite, but you can make it big enough that the difference
isn't noticeable from a relatively shallow viewpoint.
- Slime
[ http://www.slimeland.com/ ]
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_Light_Beam_ wrote:
> [...]
>
> How can I make it a (pseudo) infinite plane (terrain...) without loss of
> quality due to the pattern scalling (if I scale the isosurface, the pattern
> functions is scalled to...)
You just have to use an appropriate container object. The default one is:
contained_by { box { -1, 1 } }
and you probably want something like:
contained_by { box { <-100, -0.1, -100>, <100, 1, 100> } }
> I just want to make terrains like Christoph Hormann does ("The landscape of
> the week")
:-)
Christoph
--
POV-Ray tutorials, include files, Sim-POV,
HCR-Edit and more: http://www.tu-bs.de/~y0013390/
Last updated 17 Jun. 2003 _____./\/^>_*_<^\/\.______
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> > I just want to make terrains like Christoph Hormann does ("The landscape
of
> > the week")
>
> :-)
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Ok, that's works ! Thanks
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Slime wrote:
> Modify the contained_by box (check the documentation for more info).
> You can't make it infinite, but you can make it big enough that the
> difference isn't noticeable from a relatively shallow viewpoint.
Add perfect mirrors at the boundries
--
Rick
Kitty5 NewMedia http://Kitty5.com
POV-Ray News & Resources http://Povray.co.uk
TEL : +44 (01270) 501101 - ICQ : 15776037
PGP Public Key
http://pgpkeys.mit.edu:11371/pks/lookup?op=get&search=0x231E1CEA
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