POV-Ray : Newsgroups : povray.binaries.images : Journey outside the poor man's hyperbolic mapping : Re: Journey outside the poor man's hyperbolic mapping Server Time
10 Nov 2024 06:18:20 EST (-0500)
  Re: Journey outside the poor man's hyperbolic mapping  
From: Tor Olav Kristensen
Date: 19 Oct 2024 19:50:00
Message: <web.671444a6977dc110737cc36e89db30a9@news.povray.org>
"Bald Eagle" <cre### [at] netscapenet> wrote:
> "Tor Olav Kristensen" <tor### [at] TOBEREMOVEDgmailcom> wrote:
> > After experimenting a bit with the expressions in the article that Bald Eagle
> > linked to in his recent "Bad values crash POV-Ray" post and pigments controlled
> > by functions, I arrived at this image.
> >
> > As I was not satisfied with my original color scheme, I rotated the hue 180
> > degrees in Gimp.
>
>
> Very nice.

Thank you Bill


> I had a sort of premonition that this would be on your radar.  ;)

;)


> [I've been tied up with IRL stuff, but I will try to remember to post my
> original scene that crashed.  I'm leaning towards the issue being triggered by
> the index values not playing well with the image_map pigment that I was
> remapping.]

I'll comment on that scene in a little while.


> If you enjoyed that, you'll really like:
>
> https://dash.lib.harvard.edu/bitstream/handle/1/3720034/Mumford_2DAnalConformal.pdf
>
> (Also from same authors:)
> https://www.cis.upenn.edu/~cis6100/sharon-mumford.pdf
>
> I think it's a VERY cool idea, and something that could provide loads of fun -
> especially when animating the progressive mapping of shapes between one another.

Yes, I agree - those articles and the idea is very interesting. But it would
take quite a long time for me to absorb the math in there. I wish I had more
time...

--
Tor Olav
http://subcube.com
https://github.com/t-o-k


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