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Probably a simple problem for most of you but not me apparently. I am
trying to create some thick glowing wire shapes. The end
result (maybe) will be the numbers 0 through 9 incorporated into a vacuum
tube called a "Nixie" tube.
Anyway I am trying to make a simple shape (shown in the code below) of a
number "1" but the color of the object is bright yellow and I want it orange
looking. The "NixieColor" is what I have tried to use everywhere a color is
involved to keep everything consistent. The light coming from the object
looks okay but the color of the object itself is too yellow. (The
background the objects are next to is white) If I reduce the color of the
objects then the light color is way too dark. If I reduce the f or t
setting then I get the odd effect where the sphere and the cylinder
interact. Of course these are supposed to be solid glowing things that emit
light.
How can I get the whole mess consistent in color? Am I going about this the
wrong way? I really want the object(s) to emit light and glow.
#declare NixieColor = color rgbft<1.00,0.5,0.00,1,1>;
#declare Number1 =
union {
cylinder {<0,-0.95,0>,<0,0.95,0>,0.1}
sphere {<0,-0.95,0>,0.1}
sphere {<0, 0.95,0>,0.1}
pigment {NixieColor}
hollow
interior {
media {
emission NixieColor
scattering { 1, NixieColor}
intervals 1
samples 20
method 3
}
}
no_shadow
}
#declare NixieNumber1 =
union {
object{Number1}
light_source {
<0, 0, 0>
NixieColor
looks_like {Number1}
fade_distance 1
fade_power 2
}
photons {target reflection on collect off}
}
object{NixieNumber1 translate <-5,-5,0> scale 0.25}
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Attachments:
Download 'Image1.jpg' (8 KB)
Download 'Image2.jpg' (7 KB)
Preview of image 'Image1.jpg'
Preview of image 'Image2.jpg'
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One thing you could try is CSG merge.
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Try a "merge" instead of a "union" since they spheres and cylinder are one
object, not merely a collection of objects. That will remove the interior
surfaces.
Andrew
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Well it might remove the interior surfaces but I want these objects to be
solid.
The reduction of the f & t settings were simply an experiment to see how I
could alter the color.
"Andrew Wilcox" <awi### [at] unpuzzled com> wrote in message
news:3d333770@news.povray.org...
> Try a "merge" instead of a "union" since they spheres and cylinder are one
> object, not merely a collection of objects. That will remove the interior
> surfaces.
>
> Andrew
>
>
>
>
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> Well it might remove the interior surfaces
> but I want these objects to be solid.
They will still be solid with 'merge'.
> The reduction of the f & t settings were simply
> an experiment to see how I could alter the color.
I understand, but I'm not very experienced with media.. I think you need
more 'power' settings. There are actually no glowing effect at the moment.
With glow, the thickest parts will become almost white (as you want it) and
the edges will be blurred.
Regards,
Hugo
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So there may not be a way to make such a thing? I was hoping it would be
(somewhat) easy using media and the "looks like" function.
"Hugo" <hua### [at] post3teledk> wrote in message
news:3d333e3d@news.povray.org...
> > Well it might remove the interior surfaces
> > but I want these objects to be solid.
>
> They will still be solid with 'merge'.
>
> > The reduction of the f & t settings were simply
> > an experiment to see how I could alter the color.
>
> I understand, but I'm not very experienced with media.. I think you need
> more 'power' settings. There are actually no glowing effect at the moment.
> With glow, the thickest parts will become almost white (as you want it)
and
> the edges will be blurred.
>
> Regards,
> Hugo
>
>
>
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> So there may not be a way to make such a thing?
I think there is, just I'm not good at media.. Other people will probably
tell you how.. But anyway, there might be an alternative to media that will
render quicker. If I understand what you're trying to achieve (a small glow
around the objects) you could use a pigment_map that goes from 'fully
transparant' to 'yellowish' and ends in 'white'.. This is a faked glow
effect..
You could apply this pigment to cylinders, and make up the letters with
those cylinders. But this idea will only give a 'small' glow.. If you're
trying to get a big 'fog' around the objects, also visible from far away,
then you need media.
Regards,
Hugo
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> How can I get the whole mess consistent in color? Am I going about this
the
> wrong way? I really want the object(s) to emit light and glow.
I'd use radiosity instead of lights and looks_like.
High ambient finish should do it..
If you want to try media, you could take a look at a lightsaber blade I did:
http://hertel.no/peter/povray/2002/lightsaber.blade.pov
It doesn't emit light, but it fakes glow.
Good luck!
--
_.-=^=-._.-=[ Peter ]=-._.-=^=-._
_.-=[ http://hertel.no/peter ]=-._
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Well I thought about that but I also want the object to actually emit light
too.
"Hugo" <hua### [at] post3teledk> wrote in message
news:3d3350ca$1@news.povray.org...
> > So there may not be a way to make such a thing?
>
> I think there is, just I'm not good at media.. Other people will probably
> tell you how.. But anyway, there might be an alternative to media that
will
> render quicker. If I understand what you're trying to achieve (a small
glow
> around the objects) you could use a pigment_map that goes from 'fully
> transparant' to 'yellowish' and ends in 'white'.. This is a faked glow
> effect..
>
> You could apply this pigment to cylinders, and make up the letters with
> those cylinders. But this idea will only give a 'small' glow.. If you're
> trying to get a big 'fog' around the objects, also visible from far away,
> then you need media.
>
> Regards,
> Hugo
>
>
Post a reply to this message
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Well I am using radiosity but I want the object to emit light. Ambient
won't cast shadows
"Peter Hertel" <peter@hertel**NOSPAM**.no> wrote in message
news:3d335159@news.povray.org...
> > How can I get the whole mess consistent in color? Am I going about this
> the
> > wrong way? I really want the object(s) to emit light and glow.
> I'd use radiosity instead of lights and looks_like.
> High ambient finish should do it..
>
> If you want to try media, you could take a look at a lightsaber blade I
did:
> http://hertel.no/peter/povray/2002/lightsaber.blade.pov
> It doesn't emit light, but it fakes glow.
>
> Good luck!
>
> --
> _.-=^=-._.-=[ Peter ]=-._.-=^=-._
> _.-=[ http://hertel.no/peter ]=-._
>
>
Post a reply to this message
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