Took Thomas Lake's advice and ran it with photons. This version
has radiosity,  dispersion, and caustics. The Pentium 4 1.4Ghz
machine was down to 3 PPS :-)

Harold

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Harold,
     that's neat I like that.. And I think I've figured out photons as well.
    My question, don't the Caustics seem a little extreme..
    I mean behind the scene it seems to be a cloudy day, but the Caustics
from the paperweights act like it's extremly sunny..

    Maybe I'm missing something here.. :)
"Harold Baize" <bai### [at] itsaucsfedu> wrote in message
news:3ce5395b@news.povray.org...
>
> Took Thomas Lake's advice and ran it with photons. This version
> has radiosity,  dispersion, and caustics. The Pentium 4 1.4Ghz
> machine was down to 3 PPS :-)
>
> Harold
>
>
>

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True, I didn't take the time to match the sky with
the virutal sun placement. The clouds are a
photograph and the sun would actually be
coming from behind the camera, not to
the left in front, but I wanted to see the caustics.
I'm just learning caustics, maybe I should have
shot fewer photons? Still, I like the realism in
the paperweights, maybe I'll spend some
time and finish a more complete and acturate
environment.

HB

"Dave Bates" <dab### [at] msncom> wrote in message
news:3ce54792$1@news.povray.org...
> Harold,
>      that's neat I like that.. And I think I've figured out photons as
well.
>     My question, don't the Caustics seem a little extreme..
>     I mean behind the scene it seems to be a cloudy day, but the Caustics
> from the paperweights act like it's extremly sunny..
>
>     Maybe I'm missing something here.. :)
> "Harold Baize" <bai### [at] itsaucsfedu> wrote in message
> news:3ce5395b@news.povray.org...
> >
> > Took Thomas Lake's advice and ran it with photons. This version
> > has radiosity,  dispersion, and caustics. The Pentium 4 1.4Ghz
> > machine was down to 3 PPS :-)
> >
> > Harold
> >
> >
> >
>
>

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Granted I love those Paperweights.. and I think the caustics are nice.. Just
a little over done.. :)

Over all it's a GREAT picture.. those weights are just impressive.. you
should post the scene file for one of those little buggers. :)


"Harold Baize" <bai### [at] itsaucsfedu> wrote in message
news:3ce54b9f$1@news.povray.org...
>
> True, I didn't take the time to match the sky with
> the virutal sun placement. The clouds are a
> photograph and the sun would actually be
> coming from behind the camera, not to
> the left in front, but I wanted to see the caustics.
> I'm just learning caustics, maybe I should have
> shot fewer photons? Still, I like the realism in
> the paperweights, maybe I'll spend some
> time and finish a more complete and acturate
> environment.
>
> HB
>
> "Dave Bates" <dab### [at] msncom> wrote in message
> news:3ce54792$1@news.povray.org...
> > Harold,
> >      that's neat I like that.. And I think I've figured out photons as
> well.
> >     My question, don't the Caustics seem a little extreme..
> >     I mean behind the scene it seems to be a cloudy day, but the
Caustics
> > from the paperweights act like it's extremly sunny..
> >
> >     Maybe I'm missing something here.. :)
> > "Harold Baize" <bai### [at] itsaucsfedu> wrote in message
> > news:3ce5395b@news.povray.org...
> > >
> > > Took Thomas Lake's advice and ran it with photons. This version
> > > has radiosity,  dispersion, and caustics. The Pentium 4 1.4Ghz
> > > machine was down to 3 PPS :-)
> > >
> > > Harold
> > >
> > >
> > >
> >
> >
>
>

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> Took Thomas Lake's advice and ran it with photons. This version
> has radiosity,  dispersion, and caustics. The Pentium 4 1.4Ghz
> machine was down to 3 PPS :-)

Much better IMO, however as Dave Bates pointed out the caustics are a bit
strong. I think the lightsource you used is too close to the paper weights.
You can keep the angle of the light but place the actual light source a few
thousands pov units away.

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I used a photon count of 200000. I'm rendering it again at a
slightly different angle and with half that count. Should be more
realistic caustics. This render will be 800x600 and a stereoscopic
pair, so that will take perhaps the whole weekend to complete.
It is currently rendering at less than 1 PPS.

Harolddd

"Thomas Lake" <tla### [at] REMOVE-THISshawca> wrote in message
news:3ce57fcf@news.povray.org...
> > Took Thomas Lake's advice and ran it with photons. This version
> > has radiosity,  dispersion, and caustics. The Pentium 4 1.4Ghz
> > machine was down to 3 PPS :-)
>
> Much better IMO, however as Dave Bates pointed out the caustics are a bit
> strong. I think the lightsource you used is too close to the paper
weights.
> You can keep the angle of the light but place the actual light source a
few
> thousands pov units away.
>
>
>

Post a reply to this message

> I used a photon count of 200000. I'm rendering it again at a
> slightly different angle and with half that count. Should be more
> realistic caustics. This render will be 800x600 and a stereoscopic
> pair, so that will take perhaps the whole weekend to complete.
> It is currently rendering at less than 1 PPS.

Actually as I understand photons count should not increase the brightness of
the photons but the accuracy with which they are calculated/rendered, which
of course could end up brightening them if you start off with a low count
and increase it to a really high count.

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Yeah, you are right. The sky does not correspond
to the direct light hitting the paperweights. On the
other hand, the intensity of the bright caustics is
not too extreme. These are close models of two
paperweights I have. They concentrate light with
great intensity. They've burned wooden tables and
melted the top of a television. On a bright afternoon,
when you look right into the bright caustic area it
hurts your eyes.


"Dave Bates" <dab### [at] msncom> wrote in message
news:3ce54792$1@news.povray.org...
> Harold,
>      that's neat I like that.. And I think I've figured out photons as
well.
>     My question, don't the Caustics seem a little extreme..
>     I mean behind the scene it seems to be a cloudy day, but the Caustics
> from the paperweights act like it's extremly sunny..
>
>     Maybe I'm missing something here.. :)
> "Harold Baize" <bai### [at] itsaucsfedu> wrote in message
> news:3ce5395b@news.povray.org...
> >
> > Took Thomas Lake's advice and ran it with photons. This version
> > has radiosity,  dispersion, and caustics. The Pentium 4 1.4Ghz
> > machine was down to 3 PPS :-)
> >
> > Harold
> >
> >
> >
>
>

Post a reply to this message