Logo by Fractal Ken - 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: Check out the originating "3d Mandelbulb" thread here
 
*
Welcome, Guest. Please login or register. March 28, 2024, 05:09:14 PM


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: FractalForums Swimmingly  (Read 1461 times)
0 Members and 1 Guest are viewing this topic.
Pauldelbrot
Fractal Senior
******
Posts: 2592



pderbyshire2
« on: May 17, 2012, 03:09:02 AM »

FractalForums Swimmingly



http://www.fractalforums.com/index.php?action=gallery;sa=view;id=11379

16-color animated GIF FF banner that seems to swim.

There's a 256-color version that looks better but is 2 megabytes in size:



It's a parameter morph. Each frame is a Matchmaker Julia set image where the Julia set is the whole complex plane; structure can be made visible using orbit traps. Here the trap is in the shape of words. smiley In the animation, the Julia seed goes in a circle. The shifting between "FractalForums.com" and "The Possibilities Are Infinite" was accomplished by crossfading between two animations that differ only by which phrase is used to generate the trap. I set the gif generator up so it would pause briefly on each of the two frames that are entirely one phrase.

Because I think most of you are using UF, here's a UF coloring that can be used with UF5 to use a black-on-white image as an orbit trap. Black pixels in the image will be treated as trap points and white pixels not. The other parameters position and scale the trap. For inside coloring convergent fractals, try to position the trap on/near an attractor for best results. For Matchmaker Julias that are the whole complex plane, the default works well.

Code:
ImageTrap {
global:
  Image img = new @img
init:
  int i = 0
  bool done = false
loop:
  IF (!done)
    i = i + 1
    color c = img.getColor((#z - @ctr)/@size)
    done = (alpha(c) > 0.1 && lum(c) < 0.9)
  ENDIF
final:
  #index = 0.01*i
default:
  title = "Image Trap"
  Image param img
    caption = "Image"
    hint = "Trap shape is determined by non-100%-transparent, non-white pixels of image."
  endparam
  param ctr
    caption = "Center"
    hint = "Trap will be centered on these coordinates."
    default = (0,0)
  endparam
  param size
    caption = "Size"
    hint = "Trap size. The trap image is scaled to fit inside a square extending this far in all directions from the chosen center point."
    default = 0.1
  endparam
}
Logged

Pages: [1]   Go Down
  Print  
 
Jump to:  

Related Topics
Subject Started by Replies Views Last post
Welcome to the New Fractalforums Discuss Fractal Forums cKleinhuis 14 5257 Last post April 16, 2008, 11:36:59 PM
by ramblerette
Fractalforums.com Membergroups Discuss Fractal Forums « 1 2 » cKleinhuis 24 6965 Last post August 12, 2008, 07:27:26 AM
by JackOfTraDeZ
fractalforums.com FractalForums.com Banner Logos JodyVL 0 3130 Last post June 22, 2011, 05:17:49 PM
by JodyVL
Benvenuti su FractalForums italiano DarkBeam 13 18642 Last post May 29, 2017, 06:10:35 PM
by adelmo
Hello to FractalForums Meet & Greet TroyPuzz 1 2101 Last post December 22, 2011, 03:48:01 AM
by TroyPuzz

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 0.376 seconds with 29 queries. (Pretty URLs adds 0.015s, 2q)