POV-Ray 3.5 (now running with Release Candidates)
has advanced variable reflection options. Exponentiation
is one of them. It basically reflects brighter object
better than darker ones. In my Gallery, there is one
image of a golden cube. The sphere it reflects has
an rgb of 8, the exponential reflection of .6. Thus,
the bright sphere is reflected pretty well, though
the surrounding room is not (too dark).
Radiosity images have the problem of calculating
specular highlighting, so exponential reflection,
which is actually the most realistic specular highlighting
I know of, is the best way to go in such a case. But
do note that in a radiosity based image, objects
with high rgb/ambient become lightsources...

Flux wrote:

> Hey, thanks for the input.  I'm not getting the "exponential reflection"
> though.  What exactly do you mean by that?
>
> As for adding a pure rad sun, I'm all for that.
>
> Thanks again!
> -Law
>
> Tim Nikias wrote:
>
> > Not too bad. Has a sense of distinct realism, what with
> > radiosity and all. But either some sort of light-source +
> > highlights on the spheres or a bright sphere as sun (using
> > pure radiosity illumination) + exponential reflection
> > would add some more.
> >
> > Just some "not newbie" thoughts. ;-)
> >
> > Lawrence Winstead wrote:
> >
> > > Well this is my first post to the newsgroup... I think.  I may have
> > > posted something back in college, but I can't recall.  In any case, this
> > > was cranked out in about 30 minutes in Moray (which is kinda saying
> > > something - for me) and rendered in MegaPov 0.7.
> > >
> > > I seem to have the radiosity somewhat correct on the first try, with the
> > > entire "sky" sphere being ambient of 1.
> > >
> > > I dunno.  Comments?  Criticism?  Am I just too far behind?
> > >
> > > -Lawrence
> > >
> > > P.S.  I know I used too few blur samples, but I wanted to post this
> > > before I did anything else.
> > >
> > >   ------------------------------------------------------------------------
> > >  [Image]
> >
> > --
> > Tim Nikias
> > Homepage: http://www.digitaltwilight.de/no_lights/index.html
> > Email: Tim### [at] gmxde

--
Tim Nikias
Homepage: http://www.digitaltwilight.de/no_lights/index.html
Email: Tim### [at] gmxde

Post a reply to this message