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Author Topic: Happy New Christmandel Bunny!  (Read 375 times)
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hobold
Fractal Bachius
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Posts: 573


« on: March 27, 2016, 03:13:18 PM »

Happy New Christmandel Bunny!



http://www.fractalforums.com/index.php?action=gallery;sa=view;id=18856

Experimented with "the same" coloring method for both inside and outside points. Probably reinvented a wheel, because I ended up with:

An orbit trap at (0,0).

- intensity/brightness is controlled by orbit's closest distance to (0,0). Essentially,
  brightness = 1/(minDistance + 1)
  ignoring the starting Z_0 = 0 value

- color is controlled by the specific iteration count where closest distance was reached
  (selected a "pure" rainbow color, spreading those out with the Golden Angle)

Additionally I tweaked the gamma curve to darken the surroundings, and faded colors to white when approaching maximum intensity. Overall intensity range is scaled to image contents, i.e. darkest pixel is always pure black, brightest pixel is always pure white.
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claude
Fractal Bachius
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Posts: 563



WWW
« Reply #1 on: March 27, 2016, 05:08:22 PM »

...
Probably reinvented a wheel
...
- color is controlled by the specific iteration count where closest distance was reached
...

Congratulations, you reinvented atom domain colouring: http://www.mrob.com/pub/muency/atomdomain.html
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