On 2001-03-10 12:23, Chris Huff <chr### [at] maccom> wrote:
>In article <3AA8E44A.6218AF06@stress.uio.no>, Simen Kvaal 
><sim### [at] stressuiono> wrote:
>
>> Thus, better and better approximations would tend to a more and more 
>> opaque object which take longer and longer to render. I'd say; skip 
>> the transparency. :)
>
>Um, with better approximations, the volume the ray passes through will 
>decrease, and the sponge will become more and more *transparent*. You 
>will get a fainter and fainter image of the sponge, until it is 
>invisible. But as I said above, I'm only interested in an approximation, 
>maybe 3-5 levels...a real sponge would be impossible.

I have started one at 4 levels (CSG, no isosurface), but it seems that
this will take a few days (or weeks) to render. At two levels, the
transparent sponge looks rather boring, but the histogram has a mildly
interesting, space-ship-like look, so I'm posting that instead:

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