POV-Ray : Newsgroups : povray.newusers : Glowing things. : Re: Glowing things. Server Time
6 Sep 2024 08:09:27 EDT (-0400)
  Re: Glowing things.  
From: =Bob
Date: 4 Nov 1998 07:31:45
Message: <36404931.0@news.povray.org>
"Answered your own question"??
Wish I knew what it is.
Sounds like you want a fuzzy luminous object. Version 3.1 'media' or 3.0 
'halo' may be the only way to go.
Multiple rescaled objects (near the original size) with varying transparency 
is another, though messy, solution.
If you are thinking of getting a glow effect to show up on other objects they 
will either need reflectivity or radiosity or both for the glowing object to 
affect them.
Best thing for you would be to use an 'emission' media contained by the 
'hollow' object (transmit 1; though this means invisible, not transmitting 
light) you want to be "glowing"; scale this slightly larger and keep the 
original object within that one. They will need to be kept centered of course.
Something like this (fill in with own things):

#declare Glower =
cone {0*y,1,1*y,0
 pigment {rgbt 1}
  interior { //very simplistic example
   media {emission 1
     scattering {1,1}
   }
  }
 hollow
}

#declare NoGlow =
cone {0*y,1,1*y,0
 pigment {rgb 1}  //use hollow if filter or transmit is used
 //hollow //uncomment if this is to be semi-transparent
}

object {Glower scale 1.1}
object {NoGlow}

Message <363E5B7F.CBC01D20@pilot.msu.edu>, Drew  typed...
>
>Hello everyone and anyone.
>
>How do you make objects glow? Do I need an atmosphere? I rendered an
>object with transmit values of 1 and but there is no "halo" around it
>and it does not glow into the shadow and reflect off the surface behind
>it. I think I might have just answered my question. Im going to try that
>now. But I still would like any tips or information anyways.
>Thanks
>Drew

-- 
 omniVERSE: beyond the universe
  http://members.aol.com/inversez/POVring.html
=Bob


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