Subject:
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Re: lit truck raytrace wallpaper (competion bram!)
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Newsgroups:
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lugnet.cad.ray
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Date:
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Sun, 5 Mar 2000 20:45:09 GMT
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Viewed:
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1010 times
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Will Hess skrev i meddelandet ...
> >
> > You can use the POV-Ray "looks_like" feature for the headlights.
> > That would make them light up.
>
> This is something I've been trying to do for the apparatus
> on my website. Would either of you be kind enough to share
> pointers (or appropriate lines of code) for creating a night
> scene? As an alternative can anyone recommend a
> comprehensive POV-Ray tutorial?
You have to lower the ambient value, and fiddle a bit with the parameters for
the light that should be used with 'looks_like'. As an example, take my
Christmas rendering from 1998:
http://user.tninet.se/~hbh828t/merry.htm
Excerpts from the .pov file:
...
// Less ambient light, and more diffuse.
#declare AMB = 0.2
#declare DIF = 0.6
...
...
// Special color for the lights
#declare Color46_t = texture {
pigment { rgbf <1,0.905882,0.211765,0.90> }
finish { ambient 0.6 diffuse 0 phong 0.5 phong_size 40 reflection 0.9
refraction 1 ior 1.25 }
}
...
...
#declare light_point = light_source {
<0, -8, 0>
color rgb 0.5*<1,0.905882,0.211765>
fade_distance 60.0
fade_power 1.6
looks_like {_3062_dot_dat texture { Color46_t } }
}
...
Then you just replace the pieces that should be lighted:
object { _3062_dot_dat matrix <1,0,0,0,1,0,0,0,1,-50,-280,10> texture
Color46 } }
is replaced with
object { light_point matrix <1,0,0,0,1,0,0,0,1,-50,-280,10>}
etc.
Note that I introduced a separate color (Color46_t) for the lighted piece.
I also turned off the L3P generated lights completely.
This is in no way the only method, but it works for me.
HTH
--
Anders Isaksson, Sweden
BlockCAD: http://user.tninet.se/~hbh828t/proglego.htm
Gallery: http://user.tninet.se/~hbh828t/gallery.htm
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Message is in Reply To:
 | | Re: lit truck raytrace wallpaper (competion bram!)
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| (...) suggest that (...) LEGO items to (...) headlights. That (...) This is something I've been trying to do for the apparatus on my website. Would either of you be kind enough to share pointers (or appropriate lines of code) for creating a night (...) (25 years ago, 5-Mar-00, to lugnet.cad.ray)
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