Thanks, this helps alot.

Mike


Txemi Jendrix wrote:

> 3DC### [at] scrippsedu...
> 
>>I have been using POVray for a while but one thing that really mystifie
s
>>me is the media function. Are there any good tutorial out there? At thi
s
>>point I can't even get a glowing sphere.
> 
> 
> /* Try this. It's a macro made by Warp to create
> glows. Study it and change some settings in the media
> statement to see the effect  */
> 
> #macro Glow(GlowColor, Scale)
>   sphere
>   { 0, 1 hollow no_shadow
>     pigment { rgbt 1 }
>     interior
>     { media
>       { emission 1/Scale
>         density
>         { spherical density_map
>           { [0 rgb 0][.5 rgb GlowColor*.5][1 rgb 1]
>           }
>         }
>         samples 1,1 intervals 1 confidence .1 // quite fast settings
>         method 3
>       }
>     }
>     scale Scale
>   }
> #end
> 
> camera { location -z*10 look_at 0 angle 35 }
> plane { y,-2 pigment { checker rgb 1, rgb .5 } }
> 
> light_source
> { <-1.5,1,0>, <1,.5,0>
>   looks_like { Glow(<1,.5,0>, .5) }
> }
> light_source
> { <2,.5,0>, <0,.5,1>
>   looks_like { Glow(<0,.5,1>, 1) }
> }
> 
> object { Glow(<0,.5,1>, 1) translate 0 }
> 
> // Bye
> 
> 


-- 
*********************************
Michael DiDonato, PhD
The Scripps Research Institute
Department of Molecular Biology
Maildrop MB4
10550 North Torrey Pines Road
La Jolla, CA, 92037

Tel: (858) 784-9261
FAX: (858) 784-2277

http://www.scripps.edu/~didonato
*********************************

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