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Author Topic: Cross Hair  (Read 589 times)
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claude
Fractal Bachius
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« on: December 14, 2014, 11:51:56 AM »



pseudo-de colouring with 4.5x4.5 supersampling

info and source code for pseudo-de:
http://mathr.co.uk/blog/2014-12-13_faking_distance_estimate_colouring.html

coordinates:
http://mathr.co.uk/misc/2014-12-14_cross_hair.kfr
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Kalles Fraktaler
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kallesfraktaler
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« Reply #1 on: December 14, 2014, 02:25:25 PM »

Nice image and very interesting method!
I will indeed explore your method later!
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Want to create DEEP Mandelbrot fractals 100 times faster than the commercial programs, for FREE? One hour or one minute? Three months or one day? Try Kalles Fraktaler http://www.chillheimer.de/kallesfraktaler
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claude
Fractal Bachius
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« Reply #2 on: December 17, 2014, 03:42:54 PM »

an exponential map zooming through this location:

http://mathr.co.uk/mandelbrot/2014-12-17_cross_hair_expmap.kfr

rendered with expmap from kf-extras

422 kfb files (640x360) gave 565x26163 image, then chopped up with pamdice and reassembled with pnmcat - then downscaled 4x in GIMP for anti-aliasing.
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claude
Fractal Bachius
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« Reply #3 on: December 17, 2014, 05:44:52 PM »

and a video (5mins, 40MB - the cross hair image is at around 4mins in):

http://mathr.co.uk/mandelbrot/2014-12-17_cross_hair_lofi_with_sound.ogv

The soundtrack was made by flipping the exponential map image vertically, then loading as raw mono unsigned 8bit PCM in Audacity, setting samplerate to 48000Hz for a length around 5mins, applying DC Offset Removal filter, renormalizing volume, exporting to wav, encoding to vorbis and muxing it in when encoding the video.
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youhn
Fractal Molossus
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Shapes only exists in our heads.


« Reply #4 on: December 17, 2014, 06:05:10 PM »

At least this begins to look like musical notation ... lol.

The lack of color is actually a nice feature, since it does not distract and confuse as much as the (ment to be so) psychedelic fractal images. This gives a nice focus on the "sameness" of the fractal, and that over the whole zoom path down to a specific location.

I wanted to try, but the link "C99 source code tarball"  to http://mathr.co.uk/blog/2014-12-13_faking_distance_estimate_colouring.tar.gz is broken ...  huh?
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claude
Fractal Bachius
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« Reply #5 on: December 17, 2014, 06:22:30 PM »

I wanted to try, but the link "C99 source code tarball"  to http://mathr.co.uk/blog/2014-12-13_faking_distance_estimate_colouring.tar.gz is broken ...  huh?

ah, sorry - I'll fix it - but that code is already obsolete, see the git instructions at http://mathr.co.uk/blog/2014-12-17_exponential_mapping_with_kalles_fraktaler.html
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