scott wrote:
> Here is a transparent blob over a plane plane.
>
> I have one question, can anyone explain why when I set the colour of
> the plane to black the photons don't show up?  What I really want is
> just a black background with the caustics from the lights.  I can't
> seem to get this, I have to make the plane grey (0.1) to make them
> show up.

Sorry, that's a dumb question isn't it!! No, I don't feel stupid now :-)

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