Writing Formulas
Questions and discussion regarding writing Ultra Fractal formulas and classes.
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Otto Magus posted Apr 20 at 4:02 pm
Is anyone else unable to access the public formulas, either browse or recent changes or logging in as an author?

I am able to update my formulas successfully in UF, but cannot upload some new formulas I have written.

I get this message:

CGIWrap Error: Request Error

followed by (for browsing collection):

There is a problem with the request. Please contact the owner of the site
recent by Otto Magus  ·  Apr 21 at 2:22 pm
fractalwizz posted Apr 16 at 11:30 am
The past week or so, I've been developing a new coloring algorithm. The basic idea was to use the minimum iteration of the image to help determine how the image was colored.

I know the software reports the minimum iterations for the current image in a separate window, but I haven't seen any way to access that information within a formula. Is there any way to access that information for colori
recent by Frederik Slijkerman  ·  Apr 20 at 12:47 pm
Otto Magus posted Dec 7 '15 at 1:26 pm
Does anyone know how to write a formula for this fractal?
I've seen it called a teardrop or mandeldrop fractal, but after much experimentation have been unable to recreate it.

There may already be a formula for this in the database, but I couldn't find one.

recent by MarkCPhillips  ·  Apr 11 at 4:36 am

I have been using Fractal Explorer [now defunct, and I'm kicking myself fro not buying a license to the source years ago when the Russian dude was still responding to e-mail] and I have many [probably about 1k] original fractal formulae that are stuck in that format.

I still have the app, but it only works on 32 bit systems, and I only have one 32 bit computer left.

I followed
recent by gdsentropy  ·  Feb 25 at 4:06 am
jam posted Dec 6 '16 at 3:13 am
Over the last few months I have created a file of unique Newton, Halley, and Householder method formulas, and would like to upload them to the public database. Rather than include them with my previously existing formula files, since there are so many entires I would like to create a jam-Newton.ufm file or something like that. Who do I contact these days about creating a new formula file for th
recent by jam  ·  Dec 9 '16 at 1:37 pm
This is a formula I found initially through a program for the iPad called Frax...
They use a Line Average coloring algorithm... I googled it and found this.
I have no clue how to program it into UF, so I was hoping to find someone here that did know how...

float xmin = -2.5;
float ymin = -2.0;
float wh = 4;
float stripes = 5.0;
int maxIterations = 1000;

void setup() {
size(800, 80
recent by EvrWccn  ·  Oct 15 '16 at 5:03 am
Otto Magus posted Aug 6 '16 at 1:29 pm
is it possible to provide the option of alternative bailouts in the same formula?

More specifically, I wanted to include convergent and divergent bailouts:
|z|<@bailout (default 4.0)
|z|>@bailout (default 0.001)
It seems only one expression is allowed in the bailout section. Is there a way to do this? Any help would be appreciated.

recent by Otto Magus  ·  Aug 7 '16 at 9:53 am
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