> First: I've not that much experience
> with radiosity; maybe I'm just
> using the wrong parameters...

You're not using the ones I use, at least. No one is quite sure which ones
are the "right" ones. It's mostly a guessing game. I've been using mine
quite happily for some time now. They were developed in conjunction with
Gilles and Xplo et al. Even then they need to be adjusted a bit on a
per-scene basis.

> I wanted to try something simple, when
> I saw the radiosity pic of Tony[B]...

I inspired someone... <rapture> :)

> the obvious thing is that the crackles
> aren't lit by the environment
> by radiosity, but only by the sunlight ...

One thing I wish could be added.

> the second thing, (I'm not sure about this)
> is that there is this edge on the sphere,
> that makes it seem, to be a mirror...

I noticed this when I used count 1 or 2. I don't see why you're getting it
here.

> In the lower half the sphere is brighter, than the upper half. It's
> from the radiosity, reflecting the groundfog-brightness ...
> But I didn't expect such a sharp edge ... Maybe I'm wrong ...

In this unrealistic situation, I think it's correct.

> except these things it looks quite beautiful .. (I'think)

Do radiosity ever look otherwise? :) I'll try your source with my parameters
later. I'm rendering a tabasco bottle for someone.

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