"Paragon" <use### [at] hostcom> wrote...
> I came across a Lightwave 7 review and it featured a picture to show
> Lightwave's caustic capabilities.  The picture is fairly simple so I
decided
> to try and duplicate it in POV-Ray 3.5 rc6.  The first picture is from
> Lightwave (in case it posts in reverse order, the one with the brighter
> glass spheres) and the second picture is what I rendered.  The most
notable
> differences are caustics that appear on the blue wall (I don't know how
they
> achieved the caustics to appear white)

Instead of using rgb<0,0,1> for your wall, use something not quite so
perfect, like rgb<0.01, 0.01, 1.0>.  The non-zero components for red and
green will allow the wall to show colors other than blue.

> and the subtle highlights and shadows
> on the red wall in Lightwave's render (I'm not sure how to get that effect
> either).

Did you enable reflection photons for the glass spheres and metal spheres?
Also, their spheres might have a bit more reflection.  You might also want
to consider the possibility that those "subtle highlights" might be
aretefacts (though the more likely scenario is internal reflection in the
glass spheres).

Your image is very nice, though!

-Nathan

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