On Wed, 13 Sep 2000 04:02:35 -0500, Bob Hughes wrote...
> Interesting, a kind of CSG using light and media and spheres then.
> I know if I were to try placing the speres like that I wouldn't have even
> thought of mathematics, except for the little bit needed to make the four
> vectors.  Like so: 1 unit radius spheres, position each half a unit
> up/down/sideways and hope for the best; adjust if wrong.
> Got any more light shapes planned or is this going to be the one and only?

I don't know.  This came out because I decided to try to rebuild a four 
ball stack in Moray I had built it once before, but lost the file and 
forgot the maths :)  Then, since I'd built it around the origin, I 
decided to put a light source in and see what happened.  Then to see what 
was happening with the light, I needed to add media.  So, to keep render 
time down, I restricted the media to a sphere with a spherical density, 
set the animation rendering with quite possibly ludicrous settings to 
smooth out the media, and that's what came out.

On the other hand...  while typing this I've had another couple of ideas 
that I may get round to trying when I have the time.  mind you, unless 
the fuel situation eases, I may have some spare time...

Oh, and positioning a unit sphere up, down and sideways would give you 6 
spheres, since there are two sideways axes :)

Bye for now,
     Jamie.

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