I've released another version of UVPov.  Like previous versions, this one's
bound to have bugs (but hopefully nothing major) which will be fixed in
subsequent releases.  ;-)

I've added a bunch of things, including:
  photons are attenuated by media
  sample methods 2 and 3 for media (you can still use sample method 1)
    (these are uniform & adaptive sampling)
  big changes to radiosity - should make radiosity scenes look better, but
might take longer to render
  colored attenuation patch added

Website:
http://nathan.kopp.com/patched.htm

(To prepare you for the next version, I just rendered a scene this morning
of a dusty room (media), a clear sphere, and a spotlight, where you can see
the caustic from the sphere in the media!  Still a ways to go, but so far,
so good.  Plus, render times and memory consupmtion aren't horrible.)

-Nathan

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