Bug Reports and Feature Requests
For Ultra Fractal bug reports and feature requests.
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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,
60c0a471182a1.png
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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-
60bcc5ed78008.jpg
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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


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
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


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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
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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
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
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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

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recent by Velvet--Glove  ·  Jan 1 '20 at 12:48 pm
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