Hi all!

Next version of Kepler's Solar System. A lot of tweaking of textures;
area_light; better Sun; Mercury's orbit (which I forgot!) the outer shell
being Saturn; nailing of the original to the back wall; portrait of Kepler
on the side wall.

Thinking about the next steps....

Thomas

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Attachments:
Download 'Kepler_06.jpg' (264 KB)

Preview of image 'Kepler_06.jpg'

"Thomas de Groot" <t.d### [at] internlnet> wrote:
> Hi all!
>
> Next version of Kepler's Solar System. A lot of tweaking of textures;
> area_light; better Sun; Mercury's orbit (which I forgot!) the outer shell
> being Saturn; nailing of the original to the back wall; portrait of Kepler
> on the side wall.
>
> Thinking about the next steps....
>
> Thomas

That is nice :)

Now, how about a small animation, where the cube, tetrah., ect. revolve
around the sun ;)

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"Thomas de Groot" <t.d### [at] internlnet> wrote:
> Hi all!
>
> Next version of Kepler's Solar System. A lot of tweaking of textures;
> area_light; better Sun; Mercury's orbit (which I forgot!) the outer shell
> being Saturn; nailing of the original to the back wall; portrait of Kepler
> on the side wall.
>
> Thinking about the next steps....
>
> Thomas

Very nice! I've thought of modeling this one myself for years, but I've
never gotten around to it.

I want to see this scene in 3D... will you be making the source available?

Johannes would be proud of you. I'm pretty sure he drew the original artwork
himself. FWIW, they have this book at my local library. Kepler is an
absorbing writer, even if some of his ideas seem a little strange to modern
readers.

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"aaglo" <aag### [at] jippiifi> schreef in bericht
news:web.42d2822f100c480948c045820@news.povray.org...
> That is nice :)
>
> Now, how about a small animation, where the cube, tetrah., ect. revolve
> around the sun ;)
>

Thank you!
I am not much of an animator myself, but that should be fairly easy to do. I
shall post the source of this scene in p.b.s-f. I delegate animation to you
;-)

Thomas

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"PM 2Ring" <nomail@nomail> schreef in bericht
news:web.42d3267b100c4809ad93754b0@news.povray.org...
>
> Very nice! I've thought of modeling this one myself for years, but I've
> never gotten around to it.

Thank you! Yes, I had that idea too for some years, and suddenly while
testing the domer plugin, I realised it was the right thing to do. So, here
it is.
>
> I want to see this scene in 3D... will you be making the source available?

Yes, I shall post this scene in p.b.s-f
>
> Johannes would be proud of you. I'm pretty sure he drew the original
artwork
> himself. FWIW, they have this book at my local library. Kepler is an
> absorbing writer, even if some of his ideas seem a little strange to
modern
> readers.
>
Well, don't forget he lived in the 16th century. Our knowledge has much
increased since then. However, in his time, his work was truly
revolutionary.

Thomas

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"Thomas de Groot" <t.d### [at] internlnet> wrote:
> "PM 2Ring" <nomail@nomail> schreef in bericht

> > I want to see this scene in 3D... will you be making the source available?

> Yes, I shall post this scene in p.b.s-f

Thanks, Thomas, I'll start rendering a stereo version tonight, on my little
old 500MHz, 256Mb Windows 2000p machine. It may take some time to do high
quality, especially if I use area lights, etc.

> > Johannes would be proud of you. I'm pretty sure he drew the original
> artwork
> > himself. FWIW, they have this book at my local library. Kepler is an
> > absorbing writer, even if some of his ideas seem a little strange to
> modern
> > readers.
> >
> Well, don't forget he lived in the 16th century. Our knowledge has much
> increased since then.

And Kepler played a key role in this increase. He almost didn't obtain
access to Tycho's Mars observations - the family were very possessive after
Tycho's death, even though Kepler had been Tycho's assistant & had
performed countless observations himself.

If Kepler hadn't found that the orbit of Mars is elliptical, it may have
taken another century or more for this important fact to be known. That
would have certainly hampered the development of the calculus & Newtonian
mechanics. Modern mathematics & physics would not be where they are today
without Kepler, IMHO.

He was a master geometer, fully conversant with the properties of the conic
sections through the work of Apollonius, and with the almost inexhaustible
supply of patience required of an observational astronomer in the days
before telescopes. These qualities were essential for him to be able to
determine the shape of Mars's orbit. And, with those qualities, I reckon
he'd be brilliant at POV, too. (Hey, I managed to get back on-topic. :)

>However, in his time, his work was truly revolutionary.

And still worth reading, if you don't mind a bit of mathematical mysticism
thrown in. Personally, I find it fascinating, to see how various belief
systems influence how people think about the world.

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"PM 2Ring" <nomail@nomail> schreef in bericht
news:web.42d3bb11100c48091917bb8b0@news.povray.org...
> Thanks, Thomas, I'll start rendering a stereo version tonight, on my
little
> old 500MHz, 256Mb Windows 2000p machine. It may take some time to do high
> quality, especially if I use area lights, etc.

I am interested to see the result!
>
>
> And Kepler played a key role in this increase. [.....] And, with those
qualities, I reckon
> he'd be brilliant at POV, too. (Hey, I managed to get back on-topic. :)
>
Yes, it is fascinating to read how science was done in those times, but also
to see that mankind is mankind. Petty things like those Mars observations
for instance.

>
> And still worth reading, if you don't mind a bit of mathematical mysticism
> thrown in. Personally, I find it fascinating, to see how various belief
> systems influence how people think about the world.

Yes indeed. I am much interested in the philosophy and history of science
myself, especially to understand (and make understand) how science is done
and how our own mental and psychological limits dictated by time, belief, or
place, influence the whole process. And, to keep on topic too ;-)  , POV can
help quite a bit to do that!

Thomas

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"Thomas de Groot" <t.d### [at] internlnet> wrote:
> "PM 2Ring" <nomail@nomail> schreef in bericht
> news:web.42d3bb11100c48091917bb8b0@news.povray.org...
> > Thanks, Thomas, I'll start rendering a stereo version tonight, on my
> little
> > old 500MHz, 256Mb Windows 2000p machine. It may take some time to do high
> > quality, especially if I use area lights, etc.
>
> I am interested to see the result!

Unfortunately, I couldn't open either of the zip files. I was going to try
again today on my XP machine at work, but it was too busy to play.

> > And Kepler played a key role in this increase. [.....] And, with those
> qualities, I reckon
> > he'd be brilliant at POV, too. (Hey, I managed to get back on-topic. :)
> >
> Yes, it is fascinating to read how science was done in those times, but also
> to see that mankind is mankind. Petty things like those Mars observations
> for instance.

Yes, and in the next century or so, the dispute over the inventor of
calculus, between the supporters of Newton & those of Leibniz.

> > And still worth reading, if you don't mind a bit of mathematical mysticism
> > thrown in. Personally, I find it fascinating, to see how various belief
> > systems influence how people think about the world.

> Yes indeed. I am much interested in the philosophy and history of science
> myself, especially to understand (and make understand) how science is done
> and how our own mental and psychological limits dictated by time, belief, or
> place, influence the whole process.

A fascinating field, and one I appreciate more & more as I grow older.
These limits are very powerful. For example, we can learn in highschool
mathematics most of the important results that took the whole human race
thousands of years to achieve.

> And, to keep on topic too ;-)  , POV can help quite a bit to do that!

Yes! A scientific or mathematical diagram is much more engaging when done
with POV compared to a traditional B&W line drawing!

For example, I've attached a nice circle packing a stumbled across a few
years
back. I assume it was discovered in ancient times, but I haven't tried to
do any research about it. I don't think I've ever seen it before I
accidently
discovered it for myself.

The red cylinders have radius 3, the blue radius 2, the gold radius 1.
Notice the hidden 3,4,5 right-triangles? That's how I found this packing.

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"PM 2Ring" <nomail@nomail> schreef in bericht
news:web.42d64afa100c4809bb4450f20@news.povray.org...
>
> Unfortunately, I couldn't open either of the zip files. I was going to try
> again today on my XP machine at work, but it was too busy to play.
>
That is strange! I tried also to see if prhaps they had been corrupted, but
they worked fine for me. Tell me if you have problem, and I shall send them
to you (I can still reduce the second one in size by the way.

> For example, I've attached a nice circle packing a stumbled across a few
> years
> back. I assume it was discovered in ancient times, but I haven't tried to
> do any research about it. I don't think I've ever seen it before I
> accidently
> discovered it for myself.
>
> The red cylinders have radius 3, the blue radius 2, the gold radius 1.
> Notice the hidden 3,4,5 right-triangles? That's how I found this packing.
>
That looks a bit familiar to me.... wonder indeed where I saw this
before.... Nice that the 3-4-5 triangle is included!!

Thomas

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"Thomas de Groot" <t.d### [at] internlnet> wrote:
> "PM 2Ring" <nomail@nomail> schreef in bericht
> news:web.42d64afa100c4809bb4450f20@news.povray.org...
> >
> > Unfortunately, I couldn't open either of the zip files. I was going to try
> > again today on my XP machine at work, but it was too busy to play.

I just tried to unzip on the XP, still no go. :( Maybe I should try a
smarter unZipper?

> That is strange! I tried also to see if prhaps they had been corrupted, but
> they worked fine for me. Tell me if you have problem, and I shall send them
> to you (I can still reduce the second one in size by the way.

> > The red cylinders have radius 3, the blue radius 2, the gold radius 1.
> > Notice the hidden 3,4,5 right-triangles? That's how I found this packing.


> That looks a bit familiar to me.... wonder indeed where I saw this
> before....

If you remember, let me know! :)

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