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Discuss Fractalforums / Re: Printing big fractals
« Last post by simon.snake on Yesterday at 10:52:32 PM »
I agree with one reply to your kind offer that it is wise to be cautious.

You've provided lots of info, lots of details on what you are willing to do and so on, but you've not really shown any proof of what you are capable of.  They say a picture contains a thousand words, so how about some photographic evidence of your setup, some pictures showing a few sample prints, something printed that also has today's date in the shot, maybe today's newspaper so we can see you're genuine.

I'm sure your take up would improve upon providing these photographs of what you can offer.
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Kalles Fraktaler / Re: crosshair window (magnification)
« Last post by simon.snake on Yesterday at 10:33:37 PM »
I sometimes use it, other times forget it is there.

Would it be simpler/easier to include an option on the menu to toggle display of the zoom window (or not)?

One other thing.  The crosshair window displays an even number of pixels in both axis, but the crosshair itself is slightly offset in that window - e.g. there's one extra pixel above the crosshair than there is below, and one extra pixel to the left than there is to the right.  Would it be possible to slightly shift the crosshair to the centre of the window by displaying only half a pixel's height at the top and bottom so it equals the number of pixels of height, and the same horizontally?

Failing that, how about making the window one pixel in height and width more (or less) to place the crosshair more centrally in the window?

Scrub the above (can't find any way to strike it through) - I've just checked the window and it has been altered at some point in the past.  Don't recall when however.  Shows how observant I am!
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Fractal Mathematics And New Theories / Re: King's Dream Fractal - Investigation
« Last post by Etymos on Yesterday at 07:25:26 PM »
That last image is great!

Thank you! It seems to be a very lucky hit though, none of the other map I made after that were even close to that one. There were some cool ones, but I can't figure out what made that one seed so special!

These are all cherry picked results. I even tried tricoloring when there were three different cycles, but the result was anticlimactic.
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Forum Help And Support / Re: Beginner - How to make a movie with mandelbulber2
« Last post by buddhi on Yesterday at 06:59:56 PM »
There is a one video tutorial about making animations:
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Fractal Mathematics And New Theories / Re: King's Dream Fractal - Investigation
« Last post by claude on Yesterday at 04:09:31 PM »
The map of attraction was more interesting than I thought.
That last image is great!
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Kalles Fraktaler / Re: Kalles Fraktaler 2.13
« Last post by claude on Yesterday at 03:37:04 PM »
Small bug with open kfb feature: Save kfr, save kfb, exit. Load kfr (ESC) load kfb: Divide iteration gets reset to 1.
divide iteration is saved as an int in the kfb file, possibly a relic from before it was upgraded to floating point in more recent kf versions.
https://code.mathr.co.uk/kalles-fraktaler-2/blob/75401b8192bd1c7e53091add63513642d110fea6:/fraktal_sft/fraktal_sft.cpp#l2598
workaround might be to load kfr to set location, ESC to cancel rendering, load kfb, load palette in colors dialog (*.kfr renamed to *.kfp).
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Forum Help And Support / Beginner - How to make a movie with mandelbulber2
« Last post by jbepi on Yesterday at 03:17:21 PM »
Hello Everyone,
I'm new to the forum, I hope to post in the right space.
I just downloaded mandelbulber2-win64 and I would like to learn how to use it.
First I would like to make a movie with sample files, those included in the mandelbulber2 package.
I can upload the sample file and do the RENDER, but I can not save the movie.
Is there a button to save the movie?
Hello everyone,
I'm new to the forum, I hope to post in the right space.
I just downloaded mandelbulber2-win64 and I would like to learn how to use it.
First I would like to make a movie with sample files. those included in the mandelbulber2 package.
I can upload the sample file and do the RENDER, but I can not save the movie.
Is there a button to save the movie?
Should we make an open procedure?
Thank you
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Fractal Mathematics And New Theories / Re: King's Dream Fractal - Investigation
« Last post by Etymos on Yesterday at 03:14:19 PM »
The map of attraction was more interesting than I thought.

The first thing to do is divide the screen in two regions, each one containing a seperate cycle. Then every point of the plane is iterated and it is checked where it ends up in. According to that the starting point is colored.

In this case the following set of parameters was used:
Example 1: a = 1.0, b = 1.5, c = 1.557, d = -1.0

Of course this is not a good method. Depending on the set of parameters a new check functions needs to be written in order to produce accurate results. This function needs to be handmade.

Below is an example of this. First the coloring scheme is shown, then the actual map. (All drawn -5 < x < 5, -5 < y < 5)

It seems to exhibit fractal behaviour at (0, 0). It also seems to be symmetric.

Code:
Code: [Select]
float a, b, c, d, x, y, xp, yp, xs, ys;
PFont f;

void setup() {
  size(800, 800);
  f = createFont("Arial", 16, true);
  a = 1.0; //parameters
  b = 1.5;
  c = 1.557;
  d = -1.0;
  background(0);
}

void draw() {
  //delay(100);
  background(0);
  for (int px = 0; px < width; px += 1) {
    for (int py = 0; py < height; py += 1) {
      xs = map(px, 0, width, -5, 5);
      ys = map(py, 0, height, -5, 5);
      xp = xs;
      yp = ys;
      for (int i = 0; i < 30; i++) {
        x = sin(yp * b) + c * sin(xp * b);
        y = sin(xp * a) + d * sin(yp * a);
        xp = x;
        yp = y;
      }
      if (xp < yp / -4) {set(px, height-py, color(255));}
      println(px + " " + py);
    }
  }
 
  fill(255, 0, 0);
  noStroke();
  textFont(f, 16);
  text("a = " + str(a) + "\nb = " + str(b) + "\nc = " + str(c) + "\nd = " + str(d), 10, 30);
}
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Kalles Fraktaler / Re: crosshair window (magnification)
« Last post by julofi on Yesterday at 10:55:29 AM »
I have never used the crosshair feature and i find it distracting.
A feature that is not present almost anywhere and that I use is the grid that divides the main window in halves and thirds. This feature is present is Apophysis7x and it is optional, and it is a good method to find the center of the fractal or to arrange a good composition (this grid is present in programs of photo edition).
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Image Threads / Re: Spacefilling
« Last post by pauldelbrot on Yesterday at 07:03:17 AM »
Actually, it's called Triple Matchmaker because it arose from an effort to create a formula that could produce any combination of three Julia set basins one wanted. There's a more advanced formula based on the same concept called Triskelion. That one comes close to enabling "dial-a-Julia" where you can just punch in which three you want. It's also able to produce spacefilling fractals (choosing three disconnected Julias will usually do it, but there are added critical points so it's possible to land on a parameter that produces other stable basins).
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