Tried to put everyones ideas together - what do you reckon.

Mick
 
camera
{
  location  <0.0, 0.0, -15.0>
  look_at   <0.0, 5.0,  0.0>
}

background{color rgb<0,0,0>}
light_source {<20,5,-20> color rgb 0.25 }
// ----------------------------------------

#declare nmb=0;
#while (nmb<=10)
   light_source { nmb*y color rgb 0.1 }
   #declare nmb=nmb+1;
#end
cylinder { <0,-0.5,0>, <0,10.5,0>, 0.2 pigment { color rgbf <20,2,5,0.5> }
finish{specular 0.5}
 }

Edward Lotter <_lot### [at] loopcom> wrote in article
<01bddbb0$052ffd00$693ed3cf@edward.loop.com>...
> Try as I might (and search as I might) I have not been able to find a
> solution to this one!
> 
> My first thought (when learning POV-Ray) was a light that looked like a
> cyclinder.
> The docs do NOT tell you that the light will ONLY emit from the source,
not
> the
> entire object.
> 
> Okay, next try. Halos! Many frustrated hours later. NOPE!
> 
> Finally, linear area lights!! Even more frustrated hours later. I don't
> think so!!
> 
> Since I'm not a fundi with POV-Ray, it's entirely possible I have missed
a
> salient
> point in one or a combination of the above which would have solved my
> dilemma, but
> what it is eludes me!
> 
> How does one render a visible flourescent tube (like those in an office
> ceiling)?
> Or even a neon sign??
> 
> Thanks in advance for any pointers and help.
> 
> Cheers
> Eddie
> 
>

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