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Home > Tutorials > What are Fractals? > Fractal Examples

Fractal Examples


Using Fractint to generate my most popular Redbubble T-Shirt White Linear Mandelbrot

The first trick was to work out how to run the original DOS version of Fractint on Windows I found that DOSbox works well.

Linear 1

It took me a while to work out the combination of efects that I had used.

Hint when using DOSBox press CTRL + F12 to increase the emulation speed or edit the config file to set to MAX%

Before you run fractint edit the fractint.cfg file and add some additional video modes the default fractint.cfg file looks like this:

Fracting.cfg file


Edit it to look like this:

;key name of adapter/mode | AX | BX | CX | DX |mode| x | y |clr| comments
F2 ,SuperVGA/VESA Autodetect , 0, 0, 0, 0, 27, 640, 480,256,Works with most SuperVGA
F3 ,SuperVGA/VESA Autodetect , 0, 0, 0, 0, 27, 800, 600, 16,Works with most SuperVGA
F4 ,SuperVGA/VESA Autodetect , 0, 0, 0, 0, 27, 1024, 768, 16,Works with most SuperVGA
F5 ,Redbubble iPhone Case , 3, 0, 0, 0, 11, 1852, 1852,256,Redbubble iPhone Case
F6 ,Redbubble T-Shirts , 3, 0, 0, 0, 11, 2400, 2400, 256,Redbubble T-Shirts
F7 ,Redbubble iPad Case , 3, 0, 0, 0, 11, 3305, 3305,256,Redbubble iPad Case
F8 ,Redbubble Posters , 3, 0, 0, 0, 11, 7000, 7000,256,Redbubble Posters

Edited fractint.cfg file


Once you install DOSbox you will want to edit the config file

13. The configuration (options) file:

The configuration file is automatically created the first time you run DOSBox.
The file can be found in:
(Windows) "Start/WinLogo Menu"->"All Programs"->DOSBox-0.74->Options

DOSbox config file

Set cycles=max

Dropbox config file set core=max


When you start DOSbox you need to MOUNT a hard drive.
I have my copy of Fractint in C:\fractint so the command is MOUNT C C:\fractint
Then to run Fractint change to drive C: and type fractint

DOSbox Mount Drive C

Once Fractint starts you will see the intro screen

Fractint Intro Credits

Press Escape to open the main menu

Fractint menu


Select a video mode start with 640 x 480 (F2)




Press Escape to return to the main menu and selext Basic Options (x)

fractint basic options

Change Passes to t[ess] and Fill Color to 0

fractint basic options


The parm file looks like this

linear { ; linear mandelbrot
reset=2004 type=mandel passes=t center-mag=-0.5/1.35e-007/0.6666667
params=0/0 fillcolor=0 inside=0 colors=@default.map


The next step is to generate a disk-video mode version for Redbubble

Fractint Disk Video Mode


Image Completed

Once the file has finished generating save it to disk as a gif by pressing the S[ave] key

Save image

Wait for the image to save

save image


Once the image is competed press S to save it

Then open the image in Photoshop etc and perform any post work required.


Note that is you may wish to use an alernative method of generateing large fractals eg 10240 x 7680 pixel images etc.
This method uses a batch file created using the B command in Fractint.

1) Start Fractint
2) Generate your image at a conventional screen resolution of say 1024 x 768 pixels. (Shift F7) video mode
3) Press B for Batch mode
4) Enter the number of X and Y multiples that you want eg 10 x 10 produces a 10240 x 7680 pixel image.

5) Press Enter to save the batch file
6) Edit the batch file and remove the Rem from the 2nd last line

7) you may wish to rename to output gif file name as well.

8) you will require a copy of the DOS Memory Manager CWSDPMI.EXE. Download CSDPMI5B.ZIP and save it to a temporary location on your hard disk.
Unzip the contents of the file to a temporary directory. Open the BIN directory and copy the file CWSDPMI.EXE to your Fractint directory
9) Run the batch file MAKEIMG.BAT

This should generate 100 fractals which will then be saved into a single GIF file called fractmig.gif this is a special type of GIF file that Photoshop can not open corectly. Running Simplgif.exe will convert this multiple image GIF file into a simple GIF file that Photoshop can edit.


The following files are UltraFractal Parameter Files I have a local verison of UF2.04 and notes on using UF2.04

Parameters alk.zip
Parameters asz.zip
Parameters bobm.zip
Parameters bobm.zip
Parameters bobm000.zip
Parameters bwp.zip
Parameters bwp.zip
Parameters car0900.zip
Parameters car0900.zip
Parameters dan.zip
Parameters djk.zip
Parameters djk.zip
Parameters djm.zip
Parameters Fractint.zip
Parameters gfp.zip