KathyR posted Apr 30 '23 at 3:58 am
Hello,
Would someone be kind enough to take a look inside the sp3 formula folder. All I'm seeing is a bunch of gobbledygook and the formula I'm looking for is called Cubic Parameterspace 3. I'm trying to upload a parameter set of Ingvar's on DA and it's not working. I have updated all my formulas.
Here is what I see inside that folder:


Ingvar said it is the very first formula i
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recent by Velvet--Glove  ·  May 6 '23 at 3:19 pm
Spizzi posted Apr 27 '23 at 9:41 pm
Hi all,
Playing with the new formula Burning Mandala of Phillip...
Ciao

burningSpiral {
::/S6+Pgn2t353POutRc83Pg9/BD3Xa7hsnIp+hdL0Dt71AUgkir5uHafaBXZKb1zWSnE9u2Ly
f8dG+DJKLvNNXSQSbmXudGSNjoGJ9VU8zZ7yOZhWu/PczrWsQXp3ryX+wxu6q6tvvtqTuf5i
nq2o3lzSjiWsTVtdnOfFYuXeW11nnhxV0p2Up7zX+nq30pkLgIrbe+5q/Y8b4ZvhHxFLv5Vm
AM7mCZruqpOfZyyFNtyiK9580kFHUdbVHa2oybeU1Bb+CdnsuvV2pq15nV938q
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recent by JVYV  ·  Apr 28 '23 at 9:12 am
Phillip posted Apr 5 '23 at 8:55 am
Hello,

I have been working with a formula for a while, which I have been calling Mandalamandelbrot and Mandaljulia, because it creates nice patters with circular symmetries depending on the location and parameters used. Here are a few examples:
https://www.deviantart.com/rychveldir/art/Almond-Ship-931583199
https://www.deviantart.com/rychveldir/art/Mandala-Chain-912805646
https://www
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recent by Phillip  ·  Apr 26 '23 at 8:41 am
I've tried both with the client on my TR Pro and the server on the 10/20 core i7-6950x and the other way around; regardless of which direction it's going, only one core on the machine set up as the server is used. (tested that just in case it was deciding offload wasn't worthwhile). I checked affinity and it was set to all cores for the server process and the client was set to 20 cores on the
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recent by FractalGnome  ·  Apr 23 '23 at 3:54 pm
physicist posted Apr 3 '23 at 1:54 pm
When writing formulas, I frequently make errors that the compiler finds. The compiler then moves the insertion mark to the location of the first error that it finds. The insertion mark is somewhere on the current page, but it's not easy to see.

I'd like an option in Preferences to make the insertion mark more visible. Perhaps larger, or a different shape, or a different color.

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recent by Frederik Slijkerman  ·  Apr 11 '23 at 5:14 pm
physicist posted Apr 4 '23 at 2:53 pm
A tiny thing, but...

In writing programs, what I really miss from my days writing in C, is ++, being able to write n++ instead of n = n + 1. Even better if it's BigArray[LongIndex]++.

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recent by Frederik Slijkerman  ·  Apr 11 '23 at 5:11 pm
physicist posted Sep 22 '22 at 7:54 pm
The built-in functions include round, floor, ceil, and trunc. Trunc rounds towards zero. For floats, the behavior of trunc is equivalent to the following:

float func trunc(float x)
if x >= 0
return floor(x)
else
return ceil(x)
endif
endfunc
There is no equivalent function with < instead of >. In mathematics, I haven't even found a name for this. The best name that I cou
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recent by physicist  ·  Apr 5 '23 at 12:33 pm
Eric B posted Feb 5 '23 at 10:56 pm
I was hoping that switching the center parameter's keys to smooth interpolation would result in a smooth change of direction in a zoom animation. A gentle, natural-looking curve instead of an abrupt turn-on-a-dime. But the interpolation settings don’t seem to have any effect. It's always the same sharp turn halfway through.

Smooth interpolation:


Linear interpolation:

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recent by Eric B  ·  Apr 1 '23 at 5:15 pm
I am rendering some simple fractals, but it seems to take more time than it should. I find that the 4 Efficiency cores are running 100%, while the other 4 Performance cores are all idle. Interestingly, this doesn't happen when I am previewing the fractal. The rendering speed would be greatly increased if this can be fixed.
By the way, I am using a MacBook Air with an M1 chip.



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recent by Eric B  ·  Apr 1 '23 at 5:13 pm
Hello,

I was just playing with a fractal and noticed that there should be a very nice way of coloring my fractal if I juuuuust got the gradient offset and color density right. But I need to adjust them one by one, going back and forth. I think for these two it would make sense to have a 2D explorer - like we do for complex variables - where we can adjust color density on the x-axis and gradi
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recent by Frederik Slijkerman  ·  Mar 31 '23 at 9:33 am
mrvelocipede posted Oct 10 '22 at 6:32 pm
This month I've been using Ultra Fractal to make illustrations based on drawing prompts generated by an AI. Kind of a frivolous exercise, but it has definitely sharpened up my techniques for using coloring formulas.

You can read about the prompts here: https://www.aiweirdness.com/botober-2022-draw-human-draw/
and see the pictures I've made here: https://mrvelocipede.tumblr.com/tagged/botob
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recent by Eric B  ·  Mar 28 '23 at 2:00 am
physicist posted Feb 9 '23 at 2:21 pm
This is allowed in the default section of a ucl coloring formula, but not in a GradientColoring plug-in.

Apparently I have to make my own version of GenericGradientColoring from standard.ucl and put "render = false" in there.

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recent by Frederik Slijkerman  ·  Mar 18 '23 at 12:49 pm
Eric B posted Mar 1 '23 at 10:12 pm
While watching a screen capture video of someone working in UF6, the Render window shows a resolution of 118.110 with no units. What’s up with that?



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recent by Eric B  ·  Mar 2 '23 at 7:23 pm
physicist posted Feb 25 '23 at 2:33 pm
Chaotic Attractors Tutorial

These, often called Strange Attractors, are iterative systems that don’t seem to go anywhere, but do (approximately) repeat. Unlike most of the formulas in UltraFractal (UF), the iterations don’t diverge to infinity or converge to a point.

A simple example is the Clifford Attractor, named after Clifford Pickover, as in Layer #1 of the upr file at th
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recent by Eric B  ·  Mar 1 '23 at 10:08 pm
JVYV posted Feb 27 '23 at 1:20 pm
Hi All,

The previous month 3 new fractal parameter files in the collection.

You can find the whole existing collection at the cloud of Microsoft:
https://onedrive.live.com/redir?resid=2AB35EAF574CA6CE!1034&authkey=!ALIZio6ZmgV1aAo&ithint=folder%2ctxt

Greetings from Belgium

Jan Vyvey

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After reading Crystal Wizard's post of February 4 (https://www.ultrafractal.com/forum/index.php?u=/topic/832/dr-pickover-s-suggestion), I got inspired, or perhaps carried away.

In the Tutorials and Tips section of the forum, I have put a tutorial on my new Chaotic Attractors coloring formula and a upr with 15 sample layers. As a teaser, renderings of two of the layers are below.

Comments
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crystalwizard posted Feb 4 '23 at 10:29 pm
I follow Pickover on twitter, and he made this suggestion today

"A simple formula produces strange and unpredictable forms ⁠— wispy, chaotic ghosts composed of 10 million points. "

here's the link he provided

https://fronkonstin.com/2017/11/07/drawing-10-million-points-with-ggplot-clifford-attractors/

and the formulas are incredibly simple

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recent by physicist  ·  Feb 9 '23 at 12:45 pm
Eric B posted Jan 18 '23 at 9:50 pm
HEIFs are about 1/3rd the file size of PNGs, which are the smallest lossless files Ultra Fractal can write.

I’m converting the PNGs to HEIFs with another app but it doesn’t batch-process very well. It’d be sweet to have lossless HEIF right from UF. Even better if the files are saved with the .heif extension not .heic because Final Cut Pro and other apps don’t recogni
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recent by Eric B  ·  Feb 3 '23 at 8:07 pm
JVYV posted Feb 1 '23 at 10:22 am
Hi All,

The previous month 5 new fractal parameter files in the collection.

You can find the whole existing collection at the cloud of Microsoft:
https://onedrive.live.com/redir?resid=2AB35EAF574CA6CE!1034&authkey=!ALIZio6ZmgV1aAo&ithint=folder%2ctxt

Greetings from Belgium

Jan Vyvey

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dannac posted Jan 30 '23 at 12:38 pm
I added a hard drive to my computer ( D: )
and moved UF to that drive.

Tried copying over parameter files to D: drive and adjusting Pref locations, when I got the error message.

Apparently parameter or public paremeters cannot be relocated.
Tried to set back as was, but still get error message.

Any help advice appreciated.




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recent by dannac  ·  Jan 30 '23 at 6:16 pm
physicist posted Jan 20 '23 at 5:04 pm
Starting a day or two ago, the names of the files that I render from UF6 have -00019 added. That is, instead of xxx.jpg, the file is named xxx-00019.jpg.

What could be causing that? I've restarted my PC, same result.

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recent by physicist  ·  Jan 20 '23 at 9:09 pm
In arbitrary-precision arithmetics, the sign of the result of trigonometric and exponential functions is sometimes wrong.

Here's an excerpt of a formula printing some debug results:

complex m1 = exp(flip(#pi))
print("exp(i * #pi)=",m1)
float sin1=sin(#pi)
float cos1=cos(#pi)
print("cos(#pi)=",cos1, ", sin(#pi)=", sin1)
When I run this without additional precision, I get the following res
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recent by AndreasH58  ·  Jan 20 '23 at 4:05 pm
Matthew Friday posted Jan 17 '23 at 6:08 pm
Dear UltraFractal folks,

I’m writing in the hopes that someone might assist me. I’m new to Ultra Fractal and am trying to replicate a very specific look for an art project I am developing. The closest example that I can find is one posted by Robert Töreki here: https://www.ultrafractal.com/showcase/robert.html
In his caption he mentions that it is “A study of using t
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recent by Matthew Friday  ·  Jan 20 '23 at 12:39 pm
Perturbation-style formulas depend on the #dz value remaining small enough
for fixed-point arithmetic. I managed to sabotage myself by setting a high
bailout value of 1e20 on this deep zoom with perturbation.

After reducing the bailout to 1e10 the formula worked beautifully.

(I wanted a high bailout because I was using smooth coloring)



Disturbation_bad {
fractal:
title
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recent by Frederik Slijkerman  ·  Jan 14 '23 at 1:37 pm
physicist posted Dec 29 '22 at 2:14 am
Something curious is happening. Here's an exported image from UF. Looks right.


Here's what I get when rendered (normal anti-aliasing, forced linear drawing).


Noticeable differences, not subtle. Not solved by changing anti-aliasing parameters or precision. And if I render the same thing again, different results!



These are done with all 12 of my CPU's cores (6 real co
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recent by Frederik Slijkerman  ·  Jan 8 '23 at 6:55 pm
Lgsutekh posted Dec 29 '22 at 10:20 pm
Greetings,
I'm having difficulty while using the tutorial on animations. It seems that as I playback my initial animation, it zooms in horribly pixelized rather than a smooth image. Why is that?. I have been doing the tutorials up to this point and im stuck. CAn you give me a hand?

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recent by Phillip  ·  Dec 31 '22 at 9:12 am
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