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Here's an image of what I would do. You will need the SuperPatch or MegaPov to
use it, though.
Here's the code for the ring:
disc{
<0,0,0>,<0,1,0>,10,6
pigment{
function noise3d( sqrt( x^2+z^2 ), 0, sqrt( x^2+z^2 ) )
scale .4
color_map{[0 rgbf 1][1 rgb<1 1 .9>]}
}
finish{
ambient 0
diffuse 1.5
}
}
Steven Pigeon wrote:
> Have anyone work'd out a good planetary ring texture?
>
> Best,
>
> S.
>
> --
> ----------------------------------------------------------
> Steven Pigeon Ph. D. Student.
> University of Montreal.
> pig### [at] iro umontrealca Topics: data compression,
> pig### [at] jspumontrealca signal processing,
> ste### [at] researchattcom non stationnary signals
> and wavelets.
> ----------------------------------------------------------
> http://www.iro.umontreal.ca/~pigeon
>
> ------------------------------------------------------------------------
> [Image]
--
Samuel Benge
E-Mail: STB### [at] aolcom
Visit the still unfinished isosurface tutorial: http://members.aol.com/stbenge
Post a reply to this message
Attachments:
Download 'ringed.jpg' (13 KB)
Preview of image 'ringed.jpg'
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Wasn't it Noah A who wrote:
>also reflection is fine what if it was a metalic based ring? no polution from
>dirt on the metal and it would be slightly glossed, just use mega pov blurred
>reflection
Each individual particle might reflect, but those reflections would be
in totally random directions because the particles are oriented
randomly. Take a look at a pile of iron filings.
--
Mike Williams * ##
Gentleman of Leisure
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On Tue, 7 Mar 2000 01:19:59 +0000, Mike Williams <mik### [at] nospamplease>
wrote:
>Each individual particle might reflect, but those reflections would be
>in totally random directions because the particles are oriented
>randomly. Take a look at a pile of iron filings.
Isn't this precisely how blurred reflection in MegaPOV works?
Peter Popov
pet### [at] usanet
ICQ: 15002700
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Sigmund Kyrre Aas wrote:
> Steven Pigeon wrote:
> >
> > Have anyone work'd out a good planetary ring texture?
> >
> > Best,
>
> This isn't bad at all. The rings on "our" planets vary greatly, so I can't see
> why these shouldn't be just as possible. Well, I'm not sure if you that strong
> highlight is realistic. And ambient should be 0 for planets.
Actually, it is 0. But on the other hand earth shines quite a lot. It doesreflect
~39% of the light it receives. A ring in low orbit would have a
good 'earth shine'. If the moon does, after all...
>
>
> I've made a fairly detailed Saturn ring texture, but I don't think you can use
> it for anything else. It's in the binaries.scene-files group if you're
> interested, posted 28.11.99. It's also available from
> http://www.stud.ntnu.no/~as/down.
>
> sig.
--
----------------------------------------------------------
Steven Pigeon Ph. D. Student.
University of Montreal.
pig### [at] iroumontrealca Topics: data compression,
pig### [at] jspumontrealca signal processing,
ste### [at] researchattcom non stationnary signals
and wavelets.
----------------------------------------------------------
http://www.iro.umontreal.ca/~pigeon
Post a reply to this message
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SamuelT. wrote:
> Here's an image of what I would do. You will need the SuperPatch or MegaPov to
> use it, though.
>
> Here's the code for the ring:
>
> disc{
> <0,0,0>,<0,1,0>,10,6
> pigment{
> function noise3d( sqrt( x^2+z^2 ), 0, sqrt( x^2+z^2 ) )
> scale .4
> color_map{[0 rgbf 1][1 rgb<1 1 .9>]}
> }
> finish{
> ambient 0
> diffuse 1.5
> }
> }
Hmmm! They look good. I'll try that and Noah's suggestion... touse some Alpha blending
and all
>
>
> Steven Pigeon wrote:
>
> > Have anyone work'd out a good planetary ring texture?
> >
> > Best,
> >
> > S.
> >
> > --
> > ----------------------------------------------------------
> > Steven Pigeon Ph. D. Student.
> > University of Montreal.
> > pig### [at] iroumontrealca Topics: data compression,
> > pig### [at] jspumontrealca signal processing,
> > ste### [at] researchattcom non stationnary signals
> > and wavelets.
> > ----------------------------------------------------------
> > http://www.iro.umontreal.ca/~pigeon
> >
> > ------------------------------------------------------------------------
> > [Image]
>
> --
> Samuel Benge
>
> E-Mail: STB### [at] aolcom
>
> Visit the still unfinished isosurface tutorial: http://members.aol.com/stbenge
>
> --------------------------------------------------------------------------------
> [Image]
--
----------------------------------------------------------
Steven Pigeon Ph. D. Student.
University of Montreal.
pig### [at] iroumontrealca Topics: data compression,
pig### [at] jspumontrealca signal processing,
ste### [at] researchattcom non stationnary signals
and wavelets.
----------------------------------------------------------
http://www.iro.umontreal.ca/~pigeon
Post a reply to this message
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i thought it would have the samme scatter effect..... life aint perfect
nither is 3d
Peter Popov wrote:
> On Tue, 7 Mar 2000 01:19:59 +0000, Mike Williams <mik### [at] nospamplease>
> wrote:
>
> >Each individual particle might reflect, but those reflections would be
> >in totally random directions because the particles are oriented
> >randomly. Take a look at a pile of iron filings.
>
> Isn't this precisely how blurred reflection in MegaPOV works?
>
> Peter Popov
> pet### [at] usanet
> ICQ: 15002700
Post a reply to this message
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ooo my toil has been recognised! anyways.... where can i get megapov anyways?
Steven Pigeon wrote:
> SamuelT. wrote:
>
> > Here's an image of what I would do. You will need the SuperPatch or MegaPov to
> > use it, though.
> >
> > Here's the code for the ring:
> >
> > disc{
> > <0,0,0>,<0,1,0>,10,6
> > pigment{
> > function noise3d( sqrt( x^2+z^2 ), 0, sqrt( x^2+z^2 ) )
> > scale .4
> > color_map{[0 rgbf 1][1 rgb<1 1 .9>]}
> > }
> > finish{
> > ambient 0
> > diffuse 1.5
> > }
> > }
>
> Hmmm! They look good. I'll try that and Noah's suggestion... touse some Alpha
blending
> and all
>
> >
> >
> > Steven Pigeon wrote:
> >
> > > Have anyone work'd out a good planetary ring texture?
> > >
> > > Best,
> > >
> > > S.
> > >
> > > --
> > > ----------------------------------------------------------
> > > Steven Pigeon Ph. D. Student.
> > > University of Montreal.
> > > pig### [at] iroumontrealca Topics: data compression,
> > > pig### [at] jspumontrealca signal processing,
> > > ste### [at] researchattcom non stationnary signals
> > > and wavelets.
> > > ----------------------------------------------------------
> > > http://www.iro.umontreal.ca/~pigeon
> > >
> > > ------------------------------------------------------------------------
> > > [Image]
> >
> > --
> > Samuel Benge
> >
> > E-Mail: STB### [at] aolcom
> >
> > Visit the still unfinished isosurface tutorial: http://members.aol.com/stbenge
> >
> > --------------------------------------------------------------------------------
> > [Image]
>
> --
> ----------------------------------------------------------
> Steven Pigeon Ph. D. Student.
> University of Montreal.
> pig### [at] iroumontrealca Topics: data compression,
> pig### [at] jspumontrealca signal processing,
> ste### [at] researchattcom non stationnary signals
> and wavelets.
> ----------------------------------------------------------
> http://www.iro.umontreal.ca/~pigeon
Post a reply to this message
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In article <38C5AA75.DE8AAC9A@powersurfr.com>, Noah A
<vip### [at] powersurfrcom> wrote:
> ooo my toil has been recognised! anyways.... where can i get megapov
> anyways?
http://nathan.kopp.com/patched.htm
--
Chris Huff
e-mail: chr### [at] yahoocom
Web page: http://chrishuff.dhs.org/
Post a reply to this message
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Actually, the reflectivity (or albedo) of the earth is a very important
phenomena. Back when I was Atmospheric Chemistry simulation (i.e. solving
an approximation to the 3D multicomponent Navier-Stokes equation), albedo
was one of the most important parameters in understanding the impact of
solar radiation on the thermal characteristics of the planetary atmosphere.
--
Jim
Check out my web site http://www.kressworks.com/
Steven Pigeon <pig### [at] iroumontrealca> wrote in message
news:38C59F76.A5401909@iro.umontreal.ca...
>
>
> Sigmund Kyrre Aas wrote:
>
> > Steven Pigeon wrote:
> > >
> > > Have anyone work'd out a good planetary ring texture?
> > >
> > > Best,
> >
> > This isn't bad at all. The rings on "our" planets vary greatly, so I
can't see
> > why these shouldn't be just as possible. Well, I'm not sure if you that
strong
> > highlight is realistic. And ambient should be 0 for planets.
>
> Actually, it is 0. But on the other hand earth shines quite a lot. It
doesreflect
> ~39% of the light it receives. A ring in low orbit would have a
> good 'earth shine'. If the moon does, after all...
>
>
> >
> >
> > I've made a fairly detailed Saturn ring texture, but I don't think you
can use
> > it for anything else. It's in the binaries.scene-files group if you're
> > interested, posted 28.11.99. It's also available from
> > http://www.stud.ntnu.no/~as/down.
> >
> > sig.
>
>
>
> --
> ----------------------------------------------------------
> Steven Pigeon Ph. D. Student.
> University of Montreal.
> pig### [at] iroumontrealca Topics: data compression,
> pig### [at] jspumontrealca signal processing,
> ste### [at] researchattcom non stationnary signals
> and wavelets.
> ----------------------------------------------------------
> http://www.iro.umontreal.ca/~pigeon
>
>
Post a reply to this message
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thanks
Chris Huff wrote:
> In article <38C5AA75.DE8AAC9A@powersurfr.com>, Noah A
> <vip### [at] powersurfrcom> wrote:
>
> > ooo my toil has been recognised! anyways.... where can i get megapov
> > anyways?
>
> http://nathan.kopp.com/patched.htm
>
> --
> Chris Huff
> e-mail: chr### [at] yahoocom
> Web page: http://chrishuff.dhs.org/
Post a reply to this message
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