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Welcome to Fractal Forums > Fractal Software > Fractal Programs > Windows Fractal Software > FractInt > FractInt Gallery > Froth swirl
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Author Topic: Froth swirl  (Read 1257 times)
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simon.snake
Fractal Bachius
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Posts: 640


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simon.fez SimonSideBurns
« on: February 14, 2013, 08:00:19 PM »
Froth swirl



http://www.fractalforums.com/index.php?action=gallery;sa=view;id=13430

Here we have a 800x800 anti-aliased swirl which was generated from an 8000x8000+ image generated in FractInt.

Click http://www.needanother.co.uk/uploads/Swirl_full.png for full sized image.
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zeta forest
Alien
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Posts: 24
« Reply #1 on: February 14, 2013, 08:06:27 PM »
Lovely!
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simon.snake
Fractal Bachius
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Posts: 640


Experienced Fractal eXtreme plugin crasher!


simon.fez SimonSideBurns
« Reply #2 on: February 14, 2013, 08:19:08 PM »
Thanks.

Took far too many hours and I came back to it after leaving it overnight when it was over half way generated and pressed the wrong button, only to see it starting from 0 lines out of 8192 again! It was still generating the following morning...

The full size file has no anti-aliasing as FractInt doesn't do it as far as I can tell.
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Pauldelbrot
Fractal Senior
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Posts: 2592



pderbyshire2
« Reply #3 on: February 14, 2013, 08:45:12 PM »
What is it, a z6 + c Julia set?
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simon.snake
Fractal Bachius
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Posts: 640


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simon.fez SimonSideBurns
« Reply #4 on: February 14, 2013, 09:32:42 PM »
Well, it is a julia set but when I load it back into FractInt now it doesn't tell me the correct formula or seed values, therefore I'm unable to tell you which formula it was, but I think it was the following formula:

Code:
simon0087-C {
  if (ismand)
    z = pixel
    c = pixel
  else
    z = pixel
    c = p1
  endif:
  z = z * z * (z/c)
  z = 1/(z * z + c)
  |z| < 4
}

No idea where the seed of the julia was, but if you look at the different types of julia that are created, there's such a wide variety it's surprising.

Please take a look and see what you find...
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