Bug Reports and Feature Requests
For Ultra Fractal bug reports and feature requests.
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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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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
Hello,

I'm pretty sure this isn't intentional. The anti-aliasing in the working window has become noticeably worse in the latest version, to the point that I had to double check whether it was active at all. Here's an example comparison:
It's even more obvious with the default image, but i haven't saved a copy of that from the older version.

Best regards,
Phillip


5f56686e35a8e.png
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Phillip posted Sep 1 '20 at 12:02 pm
Hello,

I was about to explore the Mandelbrot set when I ran into a glitch while rendering. It looks exactly like the kind of artifact I get when periodicity checking fails. I can usually just turn it of, but this was using perturbation (precise).

Here's an image:


The problem occurs only in one of the two layers (the one that uses Triangle Inequality Average)

Parameters:

gl
5f4e2a2883f5e.jpg
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recent by Frederik Slijkerman  ·  Sep 4 '20 at 7:53 pm
Hello,

I recently worked on a few relatively slow rendering fractals and I frequently run into previews that take serveral minutes to render. However, I can already see what I want and I would like to use the explorer to change parameters. I know I can turn off AA and/or change the size of the image too.

It would be awesome if we had a button to pause the automatic rendering of the previe
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recent by Phillip  ·  Sep 4 '20 at 7:09 pm
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  ·  Sep 4 '20 at 7:06 pm
physicist posted Aug 24 '20 at 3:30 pm
My default upr uses SwitchComboFormula in jlb.ufm plus JLB_SwitchFormula, JLB_SwitchCombo, and JLB_MandelbrotSFormula in jlb.ulb. I had a typo in the Mandelbrot,
default = 1"
in a parameter block. When starting up UF, I got a large number of confusing and not helpful error messages, as in the screen shot below.

When the (blank) fractal loaded, I clicked on the top line, SwitchCombo
5f43ceb8f1d4c.jpg
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recent by Frederik Slijkerman  ·  Aug 26 '20 at 7:28 pm
gerrit posted Aug 2 '20 at 7:26 pm
This .upr runs in a few seconds at 640X360.
On 6.02 it takes about 3 hours at 19200X10800 (no AA).
On 4.03 it takes about 10 mins at 19200X10800 (no AA).

dot25 {
fractal:
title="dot25" width=640 height=360 layers=1
credits=""
layer:
caption="Background" opacity=100 method=multipass
mapping:
center=0/0 magn=1.3
formula:
maxiter=1000000000 filename="Standard.ufm" entry="FastJuli
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recent by JVYV  ·  Aug 3 '20 at 7:55 pm
KathyR posted Jun 23 '20 at 10:53 pm
Why do I get this blurred distorted coloring? An inverse julia zoom:

MandelbrotJuliaZoomIncorrectColoring {
fractal:
title="Mandelbrot Julia zoom incorrect coloring" width=800
height=600 layers=1 credits="Kathy;6/23/2020"
layer:
caption="Background" opacity=100
mapping:
center=0.000993846291914812695705/0.000381483804274999567745
magn=1.2142773E10
formula:
5ef279b6d0a8c.jpg
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recent by Phillip  ·  Jul 14 '20 at 1:13 pm
physicist posted May 15 '20 at 7:42 pm
In the default section of a formula, I would like to be able to do the commented line below but the compiler does not allow it:

int param n1
min=1
endparam
int param n2
min=1
max=@n1 ; compiler says invalid setting
endparam

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recent by physicist  ·  May 22 '20 at 4:21 pm
KathyR posted Dec 31 '19 at 5:01 pm
Any idea what's causing the black to appear over the fractal image? I suppose one of the variables is out of range but I happen to like the design I'm seeing on screen and don't wish to vary it too much. Thanks!
Params:

LambdaJuliaWithBlackStripe {
fractal:
title="Lambda Julia with black stripe" width=800 height=650 layers=1
credits="Kathy;12/31/2019" antialiasing=yes

5e0b7e3f0831d.jpg
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recent by Velvet--Glove  ·  Jan 1 '20 at 12:48 pm
Urs posted Dec 6 '19 at 11:47 pm
I usually render to disk with a resolution far higher than that of the fractal window. Sometimes, this means that perturbation mode would probably be used for the rendering, but I have no way of setting the precision level because it's only shown when that mode is also used for the fractal window.

Hence, I'd either suggest such an option in the rendering dialog, or to make the perturbation pr
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recent by Frederik Slijkerman  ·  Dec 13 '19 at 11:01 am
Urs posted Oct 7 '19 at 12:39 am
I've tried to reproduce the image posted here but failed, even at the "Precise" setting for Perturbation: essentially, the whole center is 'missing'. While such problems can always occur, I thought I'd report this in case you want to make the algorithm a bit more robust.

Re = -0.1539465335054964690901834505221291075155694452817396340987201
Im = -1.030516765000659787821940789035664424026379794
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recent by Frederik Slijkerman  ·  Oct 8 '19 at 6:20 pm
Hello,

I recently updated my CPU and got a Ryzen 9 3900X with 12 cores and 24 threads and that caused me to find what I think is a bug. To be clear, the program works fine, the image is rendered, so it's more of a nuisance than a real problem.

What happens, is that for images wider than 1931 pixels, certain thread counts will cause 50% of the image centered horizontally to be renderd firs
5d8283c5d460f.png
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recent by Frederik Slijkerman  ·  Oct 2 '19 at 8:57 pm
Threedeman posted Aug 30 '19 at 11:10 pm
Hi, I got UF 5.4 on 5/17/2017. I upgraded to an UHD monitor 3840 x 2160 resolution about 6 months ago, and UF 5.4 is unusable because the interface does not support UHD, and the menus and fonts are too small and unreadable. Does the latest version of UF support UHD monitors?

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recent by Frederik Slijkerman  ·  Sep 3 '19 at 9:23 pm
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