Phillip posted 1 day ago at 5:19 pm
Hello,

over the last years I have spent quite a bit of time thinking about how to render my fractals in the best possible way. I'm quite sensitive to image quality, at least I think so, since I'm often the only one to complain about it in the first place.

Just recently I found a great way for getting phenomenal results that doesn't include any costly software, it uses the completely free
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recent by Phillip  ·  6 hours ago
physicist posted 1 day ago at 8:19 pm
I’ve uploaded a new version of jlb.ucl with three new coloring formulas.

Decomposition2 is a generalization of Decomposition in dmj.ucl, by Damien Jones. It colors by the angles of #z, or of one of various functions of #z, at each iteration.

Statistics2 is a generalization of Statistics in lkm.ucl, by Kerry Mitchell. It colors by various statistics of #z, or of one of various funct
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Hello,

this one might be a low priority one, but it's something I noticed and thought I should let you know. From what I can tell, UF uses image pixel column count to separate the image into pieces that are being worked on by each thread. This works fine in almost all cases, but I encountered something interesting. If only a small area is left for calculation, and it is comparatively narrow,
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recent by Phillip  ·  3 days ago at 7:31 pm
physicist posted Jun 6 at 2:02 pm
This is an example of what has happened to me any number of times while developing plug-in formulas.

I changed a couple of parameter names in a plug-in. When loading an old upr, I got this message:

The mistake is actually in a plug-in of a plug-in of a plug-in, but the error message refers only to the top-level formula, which is not in error. The missing parameters are not in the top-
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Hi!

I’m new to this list but about 20 years ago I was a member of the UF Mailing List for a while together with my former wife Sharron. We had a fractal website called “Fracternity”, and maybe here’s the one or other fractal veteran remembering us vaguely. I have stopped making fractals for a long time, but now my interest is back, and in order to render one of my old
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gerrit posted Mar 24 at 7:41 pm
This fractal has "dirt" on it (speckles). If you zoom in on the mandelbar the noise pattern changes so it's not correct. I tried everything with bailout and even added precision but the problem remains. Actually with added precision the picture completely disappears.
I guess I can't attach here, so I'll give upr and Bugs.ufm below,

````
/>bug1 {
::8s1Schn21J1yutNMQw7CQ/DE8elpolss
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recent by Frederik Slijkerman  ·  Apr 23 at 8:37 am
JVYV posted Apr 1 at 10:10 am
Hi all,

You can find the five new fractals of 202103 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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physicist posted Mar 14 at 4:19 pm
I’ve uploaded a new version of jlb.ulb with a new fractal plug-in formula, ThreeLevel. It’s a Barnsley-type formulas; these formulas define a critical value, and at each iteration some combination of z and c is compared to the critical value. If the combination is above the critical value, one formula is used; if below, another formula is used.

ThreeLevel uses two critical values
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recent by physicist  ·  Mar 20 at 4:00 pm
physicist posted Mar 7 at 7:49 pm
I have some of the help files that are referenced in online formulas, including ones from lkm, mt, reb, and sam, but I don't have any of the dmj-pub help files. Are all of the help files still available somewhere?

They don't seem to download when I update the formula database.

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recent by Velvet--Glove  ·  Mar 9 at 4:21 pm


last week i got an error when I tried to start UF version 5. I had been planning to upgrade to version 6, and I thought this might solve the problem, but it persisted following the new installation.

Liesbeth posed basically the same question in January.

Liesbeth Quak
https://www.ultrafractal.com/forum/index.php?u=/user/profile/10posted Jan 5 at 3:52 pm

She was able to fix
60464a30226ba.png
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Hello,

I'm on a roll, so here's a 3rd post. I have intermittently run into an error message when using the explorer to vary color density. This happens when something else (preview or job) is also rendering at the same time. As I move the mouse back and forth over the explorer window, errors occasionally pop up, usually complaining that something is not a floating point value:


Th
5f4e2d2531432.png
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recent by Phillip  ·  Feb 22 at 4:10 pm
physicist posted Feb 18 at 3:14 pm
In the Formula window, bool params have their caption to the right of their check box. If the check box were to the left of the window, there would be room for a longer caption to be visible.

A very minor request for the next minor release.

Thanks to Frederik for this terrific program.

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recent by Frederik Slijkerman  ·  Feb 19 at 10:33 am
physicist posted Jan 10 at 7:53 pm
I tried changing fonts in the formula editor from the default Consolas to something else, like Times New Roman or another serif font. These other fonts are not mono-space, but they display as if they were mono-space, fixed-width and ugly, so not really usable. Of the Windows fonts, only the true mono-space fonts—Consolas, Courier New, and Lucida Sans Typewriter—are useful.

Not a b
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recent by Frederik Slijkerman  ·  Feb 16 at 9:06 pm
Encrypted posted Dec 23 '20 at 4:54 pm
From reddit:
Anon_Ymou5:
Can you please tell me which formula you used for this image?
https://www.deviantart.com/jockc/art/91395d-137310559

Same formula for this?


jockc:
For awhile I was playing around with generated/mutated formulas (using some software I wrote to do the mutation)... These two images were made with a couple of those. I never added any of those formulas t
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recent by Phillip  ·  Feb 1 at 7:17 am
JVYV posted Jan 31 at 3:16 pm
Hi all,

No new fractals this month.

You can find all the 1998 - 2020 collections 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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JVYV posted Jan 1 at 11:42 am
Hi all,

No new fractals this month.

You can find the whole 2020 collection and the older collections 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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recent by Liesbeth Quak  ·  Jan 5 at 3:59 pm
JVYV posted Nov 30 '20 at 7:59 pm
Hi all,

5 nice fractals this month.

You can find them and the older collections 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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physicist posted Nov 10 '20 at 1:55 am
The help file "Rendering the animation" says for compression to use the Cinepak Codec by Radius for Windows. My list of compressions is
(Uncompressed)
Logitech Video (I420)
Intel IYUV Codec
Microsoft RLE
Microsoft Video 1
Microsoft YUV
Microsoft YUV
Toshiba YUV Codec
Microsoft YUV
(Yes, Microsoft YUV is there three times.)
For a
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recent by physicist  ·  Nov 13 '20 at 3:24 pm
physicist posted Nov 11 '20 at 12:03 am
Now two examples with just two layers, a top layer for the lines and a bottom layer to color the cells. Here’s one with 200 rectangles. Because cells are colored with index equal to n/Nmax, shuffling the colors often gives a more pleasing result.
alt="5fab29ce64b66.jpg">
200Rectangles {
::fPzc0hn2tT1yutNMQw7Gw/DE6udkYEtiTBPU72EgAHggkDJ9UAj0KLmQRKQRna/33VP8jaJn
2zt5m0s7O7SyZ
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recent by Velvet--Glove  ·  Nov 12 '20 at 2:49 pm
physicist posted Nov 11 '20 at 12:00 am
Years ago, rkb.ulb included code that allowed the making of Mondrian-type images, but it is no longer in that file. I thought about this for a long time and decided to develop such code, though mine is totally different. (The rkb code used Trap Shape, and mine is entirely in the outside coloring.) Here’s an example of the result. Not as good as Mondrian’s, but reminiscent. And not at
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physicist posted Oct 29 '20 at 12:21 pm
In the Range field of the Exploring tab, I can't enter a number like 1e-7 or 1e5. However, if I enter .00001, UF changes this to 1e-5 and I can edit the number.

Also in the Range field, I can't enter a number like 1.5, as the decimal point is immediately deleted. However, I can enter .5, which UF changes to 0.5, and I can then change the 0 to 1.

This behavior seems limited to the Range fi
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recent by physicist  ·  Nov 6 '20 at 12:07 pm
JVYV posted Nov 2 '20 at 9:41 am
Hi all,

Sorry but no fractals this month.

You can find the older collections 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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physicist posted Oct 30 '20 at 4:04 pm
I'm debugging a new formula. All the printing so far is in the constructor. I get many more lines of printing than I expected, some of the same things over and over.

I thought that the constructor was only invoked once.

When is it really invoked? How can I avoid the excess printing?

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recent by physicist  ·  Oct 31 '20 at 10:43 am
JVYV posted Oct 1 '20 at 12:15 pm
Hi All,

There were three fractals last month.

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

Greetings from Belgium,

Jan Vyvey

0replies
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I have been working for some time on ways to generate new fractal shapes, and also to be able to switch easily from Mandelbrot type (M-type) to Julia type (J-type). Here is what I’ve come up with.
UltraFractal formulas usually depend on two complex values, z and c. Usually z starts with the pixel value and changes throughout the iterations. Usually c does not change with the iterations; for
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recent by farmerC  ·  Sep 26 '20 at 7:00 pm
physicist posted Sep 20 '20 at 8:10 pm
I have a square fractal, say 600x600 in the UF6 window. If I change it to 900x600 in the Image tab, the apparent magnification changes. I want to make it wider without changing the center or the apparent magnification. Is there a formula for changing Magnification in the Location tab that will do this?

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recent by physicist  ·  Sep 26 '20 at 2:00 am
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