On Sun, 30 Jul 2000 18:41:37 -0800, David Heys wrote...
> > Nice positioning but it looks a little too symmetric, and shouldn't it be
> > somewhat transparent?
> 
> Actually, the bubbles are all "rgbt 1" with no normal or finish properties.
> What gives them their look is the ior of the box with the scattering media,
> and making the bubbles non-hollow so the media is not inside them. I figured
> they'd be symetrical, simply from the relatively uniform pressures of the
> water. Figuring that the only things to make them non-uniform would be
> collisions with other objects and bubbles.

You forgot hydrodynamic drag, turbulence and general chaotic effects.

What you tend to get with bubbles over a certain size is what looks a bit 
like a SOR of the following (very bad) ascii graphic:

----___
       ---__
            -
----_________)
            ***
            ****
           ******

In the region marked by *'s, you get a random assortment of smaller, 
usually mostly spherical bubbles.

Also, as the bubble rises, it expands (Boyle's law, anyone?) and splits 
into multiple bubbles when turbulence etc overcome surface tension.

But I'm not dismissing you effort, it looks remarkably pretty, and I'm 
not sure if I could do any better given a couple of months to try <grin>

Bye for now,
     Jamie.

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