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Author Topic: 3 Layers  (Read 735 times)
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Kalles Fraktaler
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Posts: 1458



kallesfraktaler
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« on: October 09, 2016, 07:08:29 PM »

3 Layers



http://www.fractalforums.com/index.php?action=gallery;sa=view;id=19694

3 Layer Mandelbrot:
0. Black background
1. Yellow for first pattern layer, lines from the left needle of the main Mandelbrot.
2. Blue for second pattern, as the result of a close passage in the seahorse valley of a minibrot
3. White, as the result of a close passage in the seahorse valley of another minibrot

Location:
Code:

Re: -1.9415551668412792885521867790734264936579340339192639175574734105461171665
Im: 0.0001145904598673716396319383512877569315968410866492031533946019354756385
Zoom: 5.70899077082E45
Iteration: 300000
« Last Edit: October 10, 2016, 06:21:14 PM by Kalles Fraktaler » Logged

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claude
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« Reply #1 on: October 11, 2016, 06:36:30 AM »

Wow looks good!  How do you pick the distances at which to change colours?  I experimented with histograms but couldn't get any clues where to pick the levels (see attached).  I guess it's manual aesthetic choice?

I took your location, rendered it as raw floating point distance estimate, fed it through histogram equalisation and used it as depth (and brightness) for a 3D stereo (anaglyph red left eye, green right eye).  Here the perceptual layers just come out of the histogram equalisation, but there's not much control over relative depth (just a pow function to push them to one end or the other).




* log-de-log-histogram.png (0.62 KB, 256x256 - viewed 142 times.)
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quaz0r
Fractal Molossus
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Posts: 652



« Reply #2 on: October 11, 2016, 08:11:42 AM »

neat!  i was gonna look into anaglyph rendering at some point too.  i need to invest in a 5$ pair of solid glasses sometime... these paper freebies leave something to be desired  grin
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Kalles Fraktaler
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Posts: 1458



kallesfraktaler
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« Reply #3 on: October 11, 2016, 09:28:12 AM »

Wow looks good!  How do you pick the distances at which to change colours?  I experimented with histograms but couldn't get any clues where to pick the levels (see attached).  I guess it's manual aesthetic choice?

I took your location, rendered it as raw floating point distance estimate, fed it through histogram equalisation and used it as depth (and brightness) for a 3D stereo (anaglyph red left eye, green right eye).  Here the perceptual layers just come out of the histogram equalisation, but there's not much control over relative depth (just a pow function to push them to one end or the other).

<Quoted Image Removed>

Yes it is tweaked for aesthetic, but there is a real connection, as your image shows, between the influence from the close passage of minibrots.
Attached is the palette used.
Addition: Perhaps if log is used instead of sqrt, the colors of the palette could have equal sizes...


* palette.jpg (2.1 KB, 585x17 - viewed 158 times.)
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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
http://www.facebook.com/kallesfraktaler
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