The remains of an iso-sphere. Take 3 (47KB) (Message 1 to 5 of 5)
From: Tor Olav Kristensen
Subject: The remains of an iso-sphere. Take 3 (47KB)
Date: 1 Jan 2002 20:04:07
Message: <3C325C19.31248E47@hotmail.com>
This image was made with POV-Ray v3.5 beta.
And the shape shown is formed by one single
iso-surface.
The rotation of the sphere spirals are now
increasing exponentially as they move away
from the equator lines towards each of the
two poles.
So the centreline of each spiral should
now be the result of a mapping of loga-
rithmic spiral, on a plane right below the
sphere, mapped onto a Riemann sphere.
There are 4 such spirals.
As you can see, I stole Ib Rasmussen's idea
of having the shadow of the north pole fall
at the inside of one of the bands. Here are
links to his image:
news://news.povray.org/3C12815E.514AF4B3%40ibras.dk
http://news.povray.org/povray.binaries.images/20588/
("Re: Challenge Time" to this news group 8. Dec. 2001:)
Tor Olav
From: Michael Andrews
Subject: Re: The remains of an iso-sphere. Take 3 (47KB)
Date: 2 Jan 2002 10:19:45
Message: <3C332680.4010303@reading.ac.uk>
Here's my version of the shape ...
Tor Olav Kristensen wrote:
> This image was made with POV-Ray v3.5 beta.> > And the shape shown is formed by one single> iso-surface.>
Same applies to mine.
Happy New Year to all!
Mike Andrews.
From: Tor Olav Kristensen
Subject: Re: The remains of an iso-sphere. Take 3 (47KB)
Date: 3 Jan 2002 04:30:08
Message: <3C34243A.391DA9E3@hotmail.com>
Michael Andrews wrote:
> > Here's my version of the shape ...> > Tor Olav Kristensen wrote:> > > This image was made with POV-Ray v3.5 beta.> >> > And the shape shown is formed by one single> > iso-surface.> >> Same applies to mine.
Interesting to see another variant !
May I see how you did yours ?
Tor Olav
From: Michael Andrews
Subject: Re: The remains of an iso-sphere. Take 3 (47KB)
Date: 3 Jan 2002 05:24:18
Message: <3C3432A1.7090006@reading.ac.uk>
Hi Tor,
Tor Olav Kristensen wrote:
> Interesting to see another variant !>
I really like the way you use the select structure. I don't understand
quite what's going on there, but it sure works for you :-)
> May I see how you did yours ?>
I've posted the source as a reply to yours. It's not commented but quite
simple.
> > Tor Olav>
Bye for now,
Mike Andrews.
From: Tor Olav Kristensen
Subject: Re: The remains of an iso-sphere. Take 3 (47KB)
Date: 3 Jan 2002 18:03:15
Message: <3C34E2D3.7AE53D15@hotmail.com>
Michael Andrews wrote:
> > Hi Tor,> > Tor Olav Kristensen wrote:> > > Interesting to see another variant !> >> > I really like the way you use the select structure. I don't understand> quite what's going on there, but it sure works for you :-)
I could try to explain a little about this.
E.g. make some small tutorial-like posts with
commented source code and simple images.
If anyone want me to do this, just say so
- and I will then try to find time for it.
> > May I see how you did yours ?> >> > I've posted the source as a reply to yours. It's not commented but quite> simple.
Thank you. I'll have look at it.
Tor Olav
