POV-Ray : Newsgroups : povray.binaries.images : Black Sphere ??? : Re: Black Sphere ??? Server Time
20 Aug 2024 00:11:54 EDT (-0400)
  Re: Black Sphere ???  
From: ryan constantine
Date: 23 Sep 2000 02:59:29
Message: <39CC54D4.A07759A9@yahoo.com>
dude, this is the images group and you don't got an image.  either you
forgot to attach it, or this message should've been posted elsewhere. 
read all of the messages in p.a.f-a-q and read the VFAQ.  you can find
the link in the links section at www.povray.org or in another message in
p.newusers.

Wyldegod wrote:
> 
> I have been using the pov 3.1 for about 3 or 4 days and I have a
> question about a black sphere that appears on the ceiling in a enclosed
> space I have created.
> I used the lightbulb declare (slightly modified) from the tutorials to
> create a lightning sphere and it seems to have created a shadowed image
> of the sphere on the ceiling
> 
> #include "colors.inc"
> #include "textures.inc"
> 
> camera {
>    location <0, 40, -150>
>    look_at  <0, 35, 0>
> 
>    }
> 
> #declare Lightening_Sphere =
>       sphere { <0, 35, 0>, 10
> 
>    }
> 
> light_source { <0, 35, 0>
>        color Plum
>        looks_like { Lightening_Sphere }
>        }
> 
> union {
> box { <-75, -3, 75>
>       <75, 0, -75>
> 
>    }
> 
> box { <-75, 0, 75>
>       <75, 75, 73>
> 
>    }
> 
> box { <-75, 0, -75>
>       <-73, 75, 75>
> 
>    }
> 
> box { <75, 0, 75>
>       <73, 75, -75>
> 
>    }
> 
> box { <-75, 75, 75>
>       <75, 73, -75>
> 
>    }
> 
> texture { Aluminum }
> 
>    }
> 
> sphere { <0, 30, 0>, 10
>     texture { Lightening2
>     scale 20 }
>    }
> 
> It is a simple room of aluminum with a reflecting sphere of lightening
> but I cannot figure out where the shadow sphere came from.
>   My question is this...
> 
> Does the light source not show a 360 degree arc.  I believe that it does
> and my experience with Lightwave and Studio Max leads me to believe that
> it should so where is the shadow sphere coming from?
> 
> Thanks for any help on this subject.
> 
> A note for the editors--
> 
>     THIS IS A GREAT PROGRAM!!!


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