I tried with lower density, but even with this one (on 800x600) you can see
the circular patterns of the photons on the outside of the beam.

Oh, and while correcting the position of the "lightbulb", I found that no
photons are gatherd when the lightsource is inside an object with a
looks_like statement.

ingo

Nathan Kopp heeft geschreven in bericht <36ED5912.6B9BA6DA@Kopp.com>...
>This is pretty cool!
>
>A note about the render time: whenever you have photons hitting almost
>parallel to a surface (as you have here), you'll need a relatively high
>density (as you have here), which means long render time.
>
>You might be able to decrease the density without losing quality (but
>maybe not).
>
>-Nathan


--
Met dank aan de muze met het glazen oog

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