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Welcome to Fractal Forums > Fractal Math, Chaos Theory & Research > Mandelbrot & Julia Set > The 3D Mandelbulb > Theory > Another true 3D fail ?
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Author Topic: Another true 3D fail ?  (Read 2005 times)
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David Makin
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« on: December 16, 2012, 05:43:05 AM »
This one's pretty interesting with or without the scale of the power 5 by  (1.0-abs(real(z))/m)...

Code:

    m = sqrt(|z|+sqr(real(w)))
    if m>0.0
    complex t = (1.0-abs(real(z))/m)*(imag(z)+flip(real(w)))^5.0 + flip(2.0*real(z)*real(w))
    z = sqr(z)-sqr(real(w))+flip(real(t))
    w = imag(t)
    endif
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DarkBeam
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« Reply #1 on: December 16, 2012, 09:53:56 AM »
Everybody want an image David
wink
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David Makin
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« Reply #2 on: December 16, 2012, 10:52:31 AM »
Quote from: DarkBeam on December 16, 2012, 09:53:56 AM
Everybody want an image David
wink

I don't wanna spoil the surprise wink
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M Benesi
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« Reply #3 on: December 17, 2012, 03:52:12 AM »
Quote from: David Makin on December 16, 2012, 05:43:05 AM

Code:

    m = sqrt(|z|+sqr(real(w)))
    if m>0.0
    complex t = (1.0-abs(real(z))/m)*(imag(z)+flip(real(w)))^5.0 + flip(2.0*real(z)*real(w))
    z = sqr(z)-sqr(real(w))+flip(real(t))
    w = imag(t)
    endif

  Is w complex?  Assigning w=imag(t) tends to make me think it isn't- it should only have a real component then. 

  Looks like:
m=...
  if  m!=0 {
   t= (1-abs(x))/m) * (y+z)^5 + i * 2xz;
  k= k^2 - z^2  +  i * real (t) ;

  w= imag(t)
}

  What is it, a "squarey" brot? 

 
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David Makin
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« Reply #4 on: December 17, 2012, 04:32:04 AM »
Quote from: M Benesi on December 17, 2012, 03:52:12 AM
 Is w complex?  Assigning w=imag(t) tends to make me think it isn't- it should only have a real component then.  

  Looks like:
m=...
  if  m!=0 {
   t= (1-abs(x))/m) * (y+z)^5 + i * 2xz;
  k= k^2 - z^2  +  i * real (t) ;

  w= imag(t)
}

  What is it, a "squarey" brot?  

  

No all vars are complex but outside the calculation the imaginary part of w remains zero. It's basically standard quaternion cut down to 3D (i.e. (x,y,z)) but with (y+flip(z))^5 added to the y and z terms - if this part is scaled by (1.0-abs(x)/m) then the x+y and x+z plane slices are both the standard complex Mandy and the y+z plane is the complex degree 5 Mandy i.e. with 4 bulbs around the main.


Here it is anyway...a fail, but a damn interesting one wink




www.fractalforums.com/index.php?action=gallery;sa=view;id=12983
« Last Edit: December 17, 2012, 04:34:44 AM by David Makin » Logged
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M Benesi
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« Reply #5 on: December 17, 2012, 05:55:27 AM »
Definitely cool.

  I still find that taking the "xmas tree" formula (semi Julia mode- full xyz seed, followed by addition of ONLY x-axis component *.5), rotating the x-axis to the magnitude axis (-1,-1,-1) to (1,1,1),

 applying the following transform:

x= 2.*abs(x) -1.
y=2.*abs(y) -1.
z=2.*abs(z)-1.

followed by a rotation back to the x axis makes the fractallyest z^2s...
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jehovajah
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« Reply #6 on: January 08, 2013, 12:36:46 PM »
The sophistication of these images is amazing!
Davids so called fail compared with what was achieved early in he holy grail hunt really shows how far we have come in tinkering. Matt's solution shows how far we can go towards different design goals.
Great works, guys! grin
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