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High!
Kepler? Probably I lack some background knowledge on how Kepler found
the laws of planetary movement, I just see a rendition of (some)
Platonic solids fitted into concentric spheres! What's so Keplerian
about it?
See you in Khyberspace - www.khyberspace.de
Yadgar
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> Kepler? ... What's so Keplerian about it?
http://en.wikipedia.org/wiki/Mysterium_Cosmographicum
--
Jonathan Hunt
jon### [at] xlcus com
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alphaQuad wrote:
> 80 = 20 here:
> #declare tiletex =
> texture {
> pigment { uv_mapping
> gradient x
> pigment_map{
> [1/20 rgb 0][1/20 gradient y
> colour_map{
> [1/20 rgb 0]
> [1/20 rgb <0.78431, 0.78431, 0.78431>]
> }
> ]
> }
> scale -<1/10,1/20,1>
> }
> }
>
>
http://news.povray.org/povray.binaries.images/attachment/%3Cweb.48aaf1a091e8c8de6fa8d7740%40news.povray.org%3E/mirrorsp
> heres4.png
>
http://news.povray.org/povray.binaries.images/attachment/%3Cweb.48ab05fa91e8c8de6fa8d7740%40news.povray.org%3E/mirrorsp
> heres4.zip
>
Thanks! That will be quite helpful, I think. I can see from your image
that it works well.
--
// The Mildly Infamous Blue Herring
#version 3.61;#include"functions.inc"global_settings{assumed_gamma
2.2}isosurface{function{-f_strophoid(x/2-.45,y,z*3,1,1.2,1,1.5)-.05}
contained_by{box{<-2.1,-1,-1/3>,<1.4,1,1/3>}}max_gradient 12inverse
hollow pigment{rgbf 1}interior{media{samples 8 emission<3,80,150>/255
density{crackle metric 1color_map{[0rgb 6][.03rgb 0][1rgb 0]}scale<1,
2,1>warp{turbulence<.5,.75,.5>}scale 1/3}}}translate z*3}
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Almalm wrote:
> Nice work! I like it!
Thanks very much!
--
// The Mildly Infamous Blue Herring
#version 3.61;#include"functions.inc"global_settings{assumed_gamma
2.2}isosurface{function{-f_strophoid(x/2-.45,y,z*3,1,1.2,1,1.5)-.05}
contained_by{box{<-2.1,-1,-1/3>,<1.4,1,1/3>}}max_gradient 12inverse
hollow pigment{rgbf 1}interior{media{samples 8 emission<3,80,150>/255
density{crackle metric 1color_map{[0rgb 6][.03rgb 0][1rgb 0]}scale<1,
2,1>warp{turbulence<.5,.75,.5>}scale 1/3}}}translate z*3}
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Karl Anders wrote:
> Me too, absolutely!
>
> I just got a minor problem with posting on cgsphere.com...
>
> Since a bit more than a week, I can't reach that site. Are they having problems
> or do I have problems?
Thanks! I do recall I wasn't able to get connected to the site last
week, but then the next day I was. I haven't tried in a few days.
Perhaps they are fiddling with the hardware.
--
// The Mildly Infamous Blue Herring
#version 3.61;#include"functions.inc"global_settings{assumed_gamma
2.2}isosurface{function{-f_strophoid(x/2-.45,y,z*3,1,1.2,1,1.5)-.05}
contained_by{box{<-2.1,-1,-1/3>,<1.4,1,1/3>}}max_gradient 12inverse
hollow pigment{rgbf 1}interior{media{samples 8 emission<3,80,150>/255
density{crackle metric 1color_map{[0rgb 6][.03rgb 0][1rgb 0]}scale<1,
2,1>warp{turbulence<.5,.75,.5>}scale 1/3}}}translate z*3}
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Thomas de Groot wrote:
> He He!! Reminds me of my image back in 2005.
>
> (My previous message got the wrong address. Should be:
>
http://news.povray.org/povray.binaries.images/thread/%3C42f0bd88%40news.povray.org%3E/?mtop=6
>
> Nice!
Thanks, I knew this had been done before, but hadn't yet seen yours yet.
Very nice. Glad I'm just shooting for a cgsphere, I think you've set
the bar for a Kepler scene :)
--
// The Mildly Infamous Blue Herring
#version 3.61;#include"functions.inc"global_settings{assumed_gamma
2.2}isosurface{function{-f_strophoid(x/2-.45,y,z*3,1,1.2,1,1.5)-.05}
contained_by{box{<-2.1,-1,-1/3>,<1.4,1,1/3>}}max_gradient 12inverse
hollow pigment{rgbf 1}interior{media{samples 8 emission<3,80,150>/255
density{crackle metric 1color_map{[0rgb 6][.03rgb 0][1rgb 0]}scale<1,
2,1>warp{turbulence<.5,.75,.5>}scale 1/3}}}translate z*3}
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Jörg 'Yadgar' Bleimann wrote:
> High!
>
> Kepler? Probably I lack some background knowledge on how Kepler found
> the laws of planetary movement, I just see a rendition of (some)
> Platonic solids fitted into concentric spheres! What's so Keplerian
> about it?
That's exactly what it is :) Kepler noted similarities between how
these platonic solids were nested and the orbital distances of the
planets. He published drawings of this model in a work called the
Mysterium Cosmographicum. I think he wanted a real one to be made, but
I don't think he ever did.
Check out:
http://en.wikipedia.org/wiki/Mysterium_Cosmographicum
http://en.wikipedia.org/wiki/Kepler#Mysterium_Cosmographicum
--
// The Mildly Infamous Blue Herring
#version 3.61;#include"functions.inc"global_settings{assumed_gamma
2.2}isosurface{function{-f_strophoid(x/2-.45,y,z*3,1,1.2,1,1.5)-.05}
contained_by{box{<-2.1,-1,-1/3>,<1.4,1,1/3>}}max_gradient 12inverse
hollow pigment{rgbf 1}interior{media{samples 8 emission<3,80,150>/255
density{crackle metric 1color_map{[0rgb 6][.03rgb 0][1rgb 0]}scale<1,
2,1>warp{turbulence<.5,.75,.5>}scale 1/3}}}translate z*3}
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Blue Herring wrote:
> That's exactly what it is :) Kepler noted similarities between how
> these platonic solids were nested and the orbital distances of the
> planets. He published drawings of this model in a work called the
> Mysterium Cosmographicum. I think he wanted a real one to be made, but
> I don't think he ever did.
Kepler struggled for years with this idea, but did use models, probably
cheaply and simply made by himself, with no success. I don't remember
if there was a "prescribed order" to the solids and nesting of same,
only that each attempt sent him back to another fit of calculation. It
was the eccentricity of the orbit of Mars, when he finally got the data
compiled by Tycho that led him to try to fit the orbit to an ellipse.
But each of his three laws of planetary motion were many years between
them. An admirable and determined man that fully earned the title of
scientist.
Rich
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"Blue Herring" <pov### [at] bherringcotsenet> schreef in bericht
news:48da5823$1@news.povray.org...
> Glad I'm just shooting for a cgsphere, I think you've set the bar for a
> Kepler scene :)
Oh don't say that! CGSphere demands high quality too!! :-)
I am very curious to see how your scene is going to evolve.
Thomas
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Interesting.
Any chance you might be willing to share the source?
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