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What I am looking for would be just like a smoke
cloud, only white. Since halo's went away, I just
can't find a good example of this.
I need something that the camera can pass through
as part of an animation. Thus, cloud patterns against
a sky sphere cannot do the job for me.
Any code examples I could get started from?
Thanks,
Mark
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"Mark Jeghers" <mar### [at] nospam com> wrote in message
news:3e459e27$1@news.povray.org...
>
> I need something that the camera can pass through
> as part of an animation. Thus, cloud patterns against
> a sky sphere cannot do the job for me.
>
> Any code examples I could get started from?
I don't know of anything I could point out specifically but there is a
"cheap smoke" technique using just a textured cylinder(?) that looks nice,
maybe you could modify that to make it more of a clouds-flyby. I thought it
was done by orienting discs to the camera, maybe I'm not remembering that
right.
http://news.povray.org/povray.binaries.scene-files/28452/
If you haven't used the newsgroups web page before you'll need to set up and
then try the URL again, or just Search. And search for clouds there,
although I took a quick look and didn't notice a cloud fly-thru file.
Media and isosurfaces would be good if it weren't for the slowness, and
textured stacked objects might not work okay enough.
If you don't mind awful clouds here's a quick example of the media kind:
#version 3.5;
// ----------------------------------------
camera {
location -z
look_at +z
translate <0, 1, -25+clock*50>
}
sky_sphere {
pigment {
gradient y
color_map {
[0 rgb <0.6,0.7,1.0>]
[1 rgb <0.0,0.1,0.8>]
}
}
}
light_source {
<1000,1000,-1000>,1
}
// ----------------------------------------
plane {
y, -100
pigment { color rgb <0.575,0.65,0.55> }
}
sphere {
0.0, 1
texture {
pigment {
rgbf 1
}
}
interior {
media {
method 3
//intervals 2
samples 9,9
absorption <.12,.13,.11>
emission .1
scattering {
5,.05 eccentricity .2
}
density {
bumps
density_map {
[0 rgb 0]
[.67 rgb .01]
[.7 rgb .1]
[.75 rgb .5]
[1 rgb 1]
}
turbulence .5
scale .1
}
}
}
scale 100
hollow
}
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