Logo by KRAFTWERK - Contribute your own Logo!

END OF AN ERA, FRACTALFORUMS.COM IS CONTINUED ON FRACTALFORUMS.ORG

it was a great time but no longer maintainable by c.Kleinhuis contact him for any data retrieval,
thanks and see you perhaps in 10 years again

this forum will stay online for reference
News: Follow us on Twitter
 
*
Welcome, Guest. Please login or register. June 03, 2020, 05:21:55 AM


Login with username, password and session length


The All New FractalForums is now in Public Beta Testing! Visit FractalForums.org and check it out!


Pages: [1]   Go Down
  Print  
Share this topic on DiggShare this topic on FacebookShare this topic on GoogleShare this topic on RedditShare this topic on StumbleUponShare this topic on Twitter
Author Topic: Period 18 Julia (periodic bailout)  (Read 1617 times)
0 Members and 1 Guest are viewing this topic.
David Makin
Global Moderator
Fractal Senior
******
Posts: 2286



Makin' Magic Fractals
WWW
« on: March 12, 2009, 02:09:08 AM »

Period 18 Julia (periodic bailout)



http://www.fractalforums.com/index.php?action=gallery;sa=view;id=491

Hi, this is a period 18 Julia Set rendered by bailing out when the period is discovered and coloured using a mixture of smooth iterations and the real value of z at bailout.
Normal divergent bailout was also used but that area is just coloured black.
Just one layer - the colouring formula used was mmf3:Extended Cilia and max. iterations was set to 10000 with a convergent bailout test value of 1e-8 and a divergent bailout of 65536.
Note that because this is a Julia Set with only one period involved no extra iterations were required beyond the initial bailout.

It was rendered to disk at 3840*2880 without AA and took about 11mins on a (heat challenged) 3GHz P4HT.

The fractal formula used is still WIP but I hope to finish it this week smiley
Logged

The meaning and purpose of life is to give life purpose and meaning.

http://www.fractalgallery.co.uk/
"Makin' Magic Music" on Jango
Adam Majewski
Fractal Lover
**
Posts: 221


WWW
« Reply #1 on: April 06, 2012, 11:08:29 PM »

Great image. Can you show source code ? You use a divergent bailout of 65536 ? Why not 2 if you are making exterior all black ?
Logged
David Makin
Global Moderator
Fractal Senior
******
Posts: 2286



Makin' Magic Fractals
WWW
« Reply #2 on: December 15, 2015, 12:27:49 PM »

I realise this is a little late......all code included in the UPR.


Using 65536 is just habit from using colourings that require higher bailouts for accuracy.

* P18Julia.upr.zip (24.39 KB - downloaded 162 times.)
Logged

The meaning and purpose of life is to give life purpose and meaning.

http://www.fractalgallery.co.uk/
"Makin' Magic Music" on Jango
Adam Majewski
Fractal Lover
**
Posts: 221


WWW
« Reply #3 on: June 24, 2017, 12:38:40 PM »

Thx.

It is 3500 lines of code
Probably  your own program in c should be shorter.  smiley
 
Logged
Pages: [1]   Go Down
  Print  
 
Jump to:  

Related Topics
Subject Started by Replies Views Last post
Fractals using periodic boundaries 3D Fractal Generation msltoe 2 1365 Last post December 21, 2010, 07:09:19 AM
by fractower
Periodic Julia patterns Mandelbrot & Julia Set s31415 0 1157 Last post March 31, 2012, 12:02:29 AM
by s31415
An animation of periodic dense Julia patterns Movies Showcase (Rate My Movie) s31415 0 712 Last post June 26, 2012, 10:54:48 PM
by s31415
6th Annual Competition Submission Period Over, Rating period begins: NOW! 6th Annual Fractal Art Competition 2013 cKleinhuis 0 1229 Last post June 01, 2013, 04:19:58 AM
by cKleinhuis
Different Bailout Conditions FractInt simon.snake 0 1347 Last post October 04, 2013, 11:15:25 PM
by simon.snake

Powered by MySQL Powered by PHP Powered by SMF 1.1.21 | SMF © 2015, Simple Machines

Valid XHTML 1.0! Valid CSS! Dilber MC Theme by HarzeM
Page created in 0.106 seconds with 30 queries. (Pretty URLs adds 0.006s, 2q)