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"Hans-Werner" <nomail@nomail> wrote in message
news:web.415470a25c7b40d4536167b10@news.povray.org...
one
> for clothing and vehicles (NATO). Im new to POV-Ray. How could I create
> such a texture ?
> One of the problems is that every colour has a special area coverage of
for
> know if the "patches" have a minimum and a maximum area size. Or a
> parameter for the minimum and maximum number of "patches". As I know the
> "patches" are concav not convex.
> this ?
>
> Thank you for help
>
>
i might be a little off target but to specify color percentages something
like a color_map with one color and then transparency might work. then layer
a few of these together. someone might have a more elegant solution, but
maybe this will start you off.
-ross
//--------------------------------------
// your base color
#local c0 = texture {
pigment {
rgb <0.2, 0.4, 0.1>
}
}
// add another color, with less coverage
#local c1 = texture {
pigment {
bumps
scale .25
turbulence 0.25
color_map {
[0.00 rgb <0, 0.5, 0>]
[0.50 rgb <0, 0.5, 0>]
[0.51 rgbt <0.0, 0.0, 0.0, 1.0>]
[1.00 rgbt <0.0, 0.0, 0.0, 1.0>]
}
}
}
// second color, a little bit less coverage
#local c2 = texture {
pigment {
bumps
scale .25
turbulence 0.25
color_map {
[0.00 rgb <0.5, 0.5, 0.5>]
[0.30 rgb <0.5, 0.5, 0.5>]
[0.31 rgbt <0.0, 0.0, 0.0, 1.0>]
[1.00 rgbt <0.0, 0.0, 0.0, 1.0>]
}
}
rotate <15, -30, 35> // rotate it some, so the transparent parts aren't
all the same
}
// another color with even less coverage
#local c3 = texture {
pigment {
bumps
scale .25
turbulence 0.25
color_map {
[0.00 rgb <0.5, 0.25, 0.15>]
[0.30 rgb <0.5, 0.25, 0.15>]
[0.31 rgbt <0.0, 0.0, 0.0, 1.0>]
[1.00 rgbt <0.0, 0.0, 0.0, 1.0>]
}
}
}
//stack them all together now
#local military =
texture {c0}
texture {c1}
texture {c2}
texture {c3}
sphere {
0.0, 1
texture {
military
}
}
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