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Author Topic: Apollonian fractals  (Read 3992 times)
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DarkBeam
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Fragments of the fractal -like the tip of it


« on: February 02, 2012, 06:23:54 PM »

It is was not really easy; they need a folding (polyfolding is fine BUT with fix factor = 0), then a z rotation of 90°, then a Cayley transformation;

    z = ((z-i)/(z+i)) (on complex numbers)

And finally a x addition. Final result is on image. cheesy cheesy cheesy

Jesse I really need to do an example parameter, can I enclose it to the official binary? Thanks!!!


* cayley.jpg (123.46 KB, 624x533 - viewed 189 times.)
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Jesse
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« Reply #1 on: February 03, 2012, 12:03:57 AM »

Sure, that's cool!
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DarkBeam
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Fragments of the fractal -like the tip of it


« Reply #2 on: February 03, 2012, 12:29:48 AM »

My regret is that polyfolding is discontinue. Fantastic patterns appear if you rotate but also weird cuts... Luckily Cayley Julia has not this problem - shows some mobius patterns using only continue funcs smiley

I used the simplest method possible, z is simply linear scaled rather than mixed with mobius, probably there are a lot better
Still not understood how this can be done conformally in 3d... Will look again btw

When I finish testing will add ty... smiley
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matsoljare
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WWW
« Reply #3 on: February 03, 2012, 12:16:51 PM »

Look like some futuristic Brazilian housing block.
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DarkBeam
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Fragments of the fractal -like the tip of it


« Reply #4 on: February 03, 2012, 12:44:25 PM »

 cheesy Thanks: I uploaded the updated files in the official downloads section! Also an amazingIfs example is available now... wink Enjoy!

(The example is more 3D looking due to a Z-add that makes the shapes fly away)
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DarkBeam
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Fragments of the fractal -like the tip of it


« Reply #5 on: February 07, 2012, 10:44:56 AM »

While trying to do a 3d version I found this... Apollonian volcanoes shocked

Jesse I think that I can not do a "conformal" transform since it probably doesn't exist? embarrass


* cayley.jpg (117.55 KB, 779x563 - viewed 191 times.)
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DarkBeam
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Fragments of the fractal -like the tip of it


« Reply #6 on: February 07, 2012, 11:17:48 AM »

This parameter shows up almost perfectly with a raystep = 0.2 (0.5 is too much for my formula - do you think it's enuff? angel )
Requires also Knighty's stars wink

Mandelbulb3Dv17{
V....Ej/..kB3...c....2....UcYYZLGJZ6.TU4Lad3o14EQ9dmyxAkqwPONIIGeBa2.33dsWIL4j.k
................................k182/uGTaz1........A./..................y.2.....
................/M.0/....6UV2...p0....E2.....U18dBDkojpD/.......aeKi0dkpXm1.H6T4
./EnAnYD12..0..........wz..................................u1....y1...sD...../..
.w1...sDVq2cNcUtjx1..........oIRMddbVcdjNSKYTzTqMunsZ2WRlVvIzMjfqOB5KtqDZ0yU4xu7
.uHxa6IqQMZPzOqdtFLQsCpD......ob3.............kD/2....sD..kz0...................
.............oAnAr1...sD....z.lRo4.grFP.EV5h/.DSo4.YtFP.kc5h/.hSo4......c....k1.
..................kz.wzzz1.U..6.P....M4...EB....W....k1....F....8/...I1.....SF52
...U.qFG9yzb2zzzRYoWzz7lz16.mc..zXCc..k18XGQeGyD.sIRhrVAkz1..........2.28.kFrA0.
.Ub96aAIVz9.1se7Umvxz0........../6U0.wzzz1................................E.0c..
zzzz.................................2U.8.kzzzD.................................
/6U0.wzzz1...................................wSjE.Uyan9.D/0..0A.uPCj.wW9...U.cjt
w0UPwxSjE.Uyan9.cnrvx0/.uPCj.6LTjr92.cjtw0k.yxSjE.Uyan9.Furvx0/.uPCj.clTjr92.cjt
w0EczxSjE.Uyan9...EsUa3.eeWCNq0.IJ36wk8.wyLsUa3.................................
E....A....E.....I....c....UMjVLG4B3......................................sU1....
/6.........aNaNaNaNiz.........zD........kz1........wz...........................
................................................................................
.....................2.....3....8....MqPgFqMpF5ChYYFH/..........................
.sU1..U......................UyD........3.2.......N/./..........................
................JJJJJJJJZzHJJJJJJJJtzIJJJJJJJJxj................................
................................/....E/...E0....//rPglqPnEI97NoI................
..............U/4MU.........................................UMzj................
........................6.2OaNaNaN4gz2QaNaNaNAyD................................
............................................}
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cytotox
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« Reply #7 on: February 07, 2012, 04:31:53 PM »

...
Requires also Knighty's stars wink
...

Hi Darkbeam

Could not locate that formula - can you tell me where to find it?
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ericr
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« Reply #8 on: February 07, 2012, 04:40:37 PM »

see the first topic
28.0
Added a test version of Apollo 3D 

ERICR

 I tried it but I would like an example please
thank you all
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eiffie
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« Reply #9 on: February 07, 2012, 05:26:39 PM »

DarkBeam you can flip every other polyfold backwards to remove the cut and get a kaleidoscope look.
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DarkBeam
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Fragments of the fractal -like the tip of it


« Reply #10 on: February 07, 2012, 05:46:40 PM »

@eiffie; not understood what you mean...

@cytotox: Knighty's "stars" refers to foldcut?-IFS shapes, I made them very recently... cheesy

@ericr: The param is an example param for Apollo3D, actually cheesy
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Jesse
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« Reply #11 on: February 07, 2012, 05:54:04 PM »

While trying to do a 3d version I found this... Apollonian volcanoes shocked

Jesse I think that I can not do a "conformal" transform since it probably doesn't exist? embarrass

A bit non-conformal should be ok, i think we are in pm on the way to improve it.
As you can see, the higher the iteration, the less accurate the DE becomes becuse the global scale parameter is not updated.
If z is also scaled, it should be ok even with 0.5 or higher multiplier (i hope)!

Nice examples of course, cool "Knighty" stars!  smiley
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PhotoComix
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« Reply #12 on: February 07, 2012, 10:19:57 PM »

This parameter shows up almost perfectly with a raystep = 0.2 (0.5 is too much for my formula - do you think it's enuff? angel )
Requires also Knighty's stars wink

Mandelbulb3Dv17{
V....Ej/..kB3...c....2....UcYYZLGJZ6.TU4Lad3o14EQ9dmyxAkqwPONIIGeBa2.33dsWIL4j.k
................................k182/uGTaz1........A./..................y.2.....
................/M.0/....6UV2...p0....E2.....U18dBDkojpD/.......aeKi0dkpXm1.H6T4
./EnAnYD12..0..........wz..................................u1....y1...sD...../..
.w1...sDVq2cNcUtjx1..........oIRMddbVcdjNSKYTzTqMunsZ2WRlVvIzMjfqOB5KtqDZ0yU4xu7
.uHxa6IqQMZPzOqdtFLQsCpD......ob3.............kD/2....sD..kz0...................
.............oAnAr1...sD....z.lRo4.grFP.EV5h/.DSo4.YtFP.kc5h/.hSo4......c....k1.
..................kz.wzzz1.U..6.P....M4...EB....W....k1....F....8/...I1.....SF52
...U.qFG9yzb2zzzRYoWzz7lz16.mc..zXCc..k18XGQeGyD.sIRhrVAkz1..........2.28.kFrA0.
.Ub96aAIVz9.1se7Umvxz0........../6U0.wzzz1................................E.0c..
zzzz.................................2U.8.kzzzD.................................
/6U0.wzzz1...................................wSjE.Uyan9.D/0..0A.uPCj.wW9...U.cjt
w0UPwxSjE.Uyan9.cnrvx0/.uPCj.6LTjr92.cjtw0k.yxSjE.Uyan9.Furvx0/.uPCj.clTjr92.cjt
w0EczxSjE.Uyan9...EsUa3.eeWCNq0.IJ36wk8.wyLsUa3.................................
E....A....E.....I....c....UMjVLG4B3......................................sU1....
/6.........aNaNaNaNiz.........zD........kz1........wz...........................
................................................................................
.....................2.....3....8....MqPgFqMpF5ChYYFH/..........................
.sU1..U......................UyD........3.2.......N/./..........................
................JJJJJJJJZzHJJJJJJJJtzIJJJJJJJJxj................................
................................/....E/...E0....//rPglqPnEI97NoI................
..............U/4MU.........................................UMzj................
........................6.2OaNaNaN4gz2QaNaNaNAyD................................
............................................}


from your parameter i only get  this  parallelepiped

did i miss something ?


* vague.jpg (36.45 KB, 890x667 - viewed 170 times.)
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DarkBeam
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Fragments of the fractal -like the tip of it


« Reply #13 on: February 07, 2012, 11:32:46 PM »

yes because you do not have the new formulas installed
but be careful they are experimental
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PhotoComix
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« Reply #14 on: February 08, 2012, 03:20:16 AM »

yes because you do not have the new formulas installed
but be careful they are experimental

Do you refer to this http://www.fractalforums.com/index.php?topic=9810.msg27693#msg27693 or to this
http://www.fractalforums.com/mandelbulb-3d/mandelbulb3d-v1-7-7/?topicseen or to what else ?

(For the first 2 link i tough to have installed all but a couple of days ago now i see the content updated )
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