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  Gimp 2.10.24 Export window too large.
Posted by: sathv - 06-06-2021, 07:27 PM - Forum: Installation and usage - Replies (4)

Gimp 2.10.24 Export window too large. The save button is not visible. It cannot be reduced further. The monitor is 1366x768.

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  Brush painting with background color instead of foreground color
Posted by: oppositeyolkcitizen - 06-06-2021, 06:32 PM - Forum: General questions - Replies (3)

So I'm relatively new to Gimp, and I was working on something when suddenly the brush started painting with the background color instead of the foreground color. It's like this no matter what colors are selected for foreground and background, it always paints in whatever is set as the background color now. I tried updating Gimp (to 2.10.24 revision 3) and resetting preferences and neither of them fixed the problem. Did I accidentally press the wrong thing by accident or something? How do I get it back to normal?

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  toolbox problem
Posted by: rjkanes - 06-06-2021, 06:07 PM - Forum: General questions - Replies (1)

Hi, I see the following message when I try to find my toolbox: "The chosen recent dock contains a toolbox. Please close the currently open toolbox and try again." This occurs even with a brand new file and image. The toolbox is nowhere to be seen... help!

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  Smoothing a path: a simple plugin
Posted by: Ottia Tuota - 06-06-2021, 10:50 AM - Forum: Extending the GIMP - No Replies

I happened to find a simple algorithm to smooth paths of linear line segments. The site is


The algorithm is a simple geometric construction of control points. Certainly there are much more sophisticated algorithms but this is simple and probably sufficient to most purposes. I made a faithful implementation of it. (I manipulated the formulas a little which gave different insight to their meaning. But I refrain from explaining it here.)

To get the plugin, go to


scroll to the bottom, and click the right download button ("Simple smooth"). You get a zip file. Unzip it and place the one file it contains (simple_smooth_path.py) in your user's plug-ins folder. Then (re)start Gimp. To use the plugin: in the Paths tab, right-click a path and follow the links Tools > Modify path > Simple smooth.

A picture tells all:


This was done with default values. Note that the smoothed path passes through all anchors of the original path. In fact, all anchors are preserved (with one exception, see below) and no new anchors are created; only new handles are made. So the plugin works differently from my recent corners-rounding plugin. To compare the two plugins, look at this:




Rich recalled some old smoothing plugin. By my experiments the effect differs slightly from that of my simple plugin. I guess it uses some more sophisticated algorithm. This new simple plugin uses a simple local geometric construction, and it, for instance, makes no effort to minimize the deviation of the smoothed path from the original one.

Some words about the new plugin:

The GUI asks for 'strength'. Default is 1. Smaller values give tighter bends. There is also an option on how to use the selection: with it you can restrict the effect to a smaller part of the path.

The only option that needs explaining is that the plugin asks "Remove superfluous anchors from straight edges?" Default is "Yes". An example: Suppose you make a rectangular selection, rotate it, and apply "Selection to path". You get something like on the left, with lots of anchors:


If you apply here the plugin without removing the superfluous anchors you get what you probably were not after. Namely, all anchors are preserved and the result is not good. But if you keep the default value "Yes" you get what is seen on the right. That is what probably was wanted. Only 4 anchors are kept.

By the way, I had some problems with this option. I fear it may cause trouble in some cases. If so, please tell me and I shall see what I can do.

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  Tartan (a.k.a. plaid) cloth in a few easy steps
Posted by: Ofnuts - 06-06-2021, 08:27 AM - Forum: Tutorials and tips - Replies (5)

The fundamentals of the tartan cloth (plaid for americans) are well described on Wikipedia and are very simple. They are easy to reproduce on Gimp:

Creating the tartan "tile"

  • Create a small square image (this will be your tartan "tile"). Its side must be a multiple of 4 (for instance, 40x40)
  • Fill it with horizontal bands of color of different widths (usual tartan patterns use three colors, and there is a vertical symmetry).
  • Duplicate the layer
  • Rotate the top layer 90°
  • Add a layer mask to the top layer
  • Bucket fill the mask of the top layer with the attached TartanWarpMask pattern
  • And there you are

You can export the image at that point and put it (as .PNG or .PAT) in your patterns folders for later use.

For an immediate test, do Edit ➤ Copy visible and select the "Clipboard" pattern (always first in the list) then bucket-fill
your target image with the pattern


Attached Files
.zip   TartanWarpMask.zip (Size: 233 bytes / Downloads: 20)
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  Deselecting part of a fuzzy select
Posted by: stevetimko - 06-05-2021, 05:01 PM - Forum: General questions - Replies (2)

This happens to me all the time. I use fuzzy select to lighten part of the background in this booking photo. But if you look, it also goes onto the guy's jacket, which I don't want.
I don't have the time to go through and manually select the area so the jacket is left out. Is there a way I can quickly unselect the area on the jacket?
Sorry if this is such a noob question and thanks in advance for any help.

Attached Files Image(s)
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  gegl-0.4.30 failed the meson test.
Posted by: jiapei100 - 06-05-2021, 02:57 AM - Forum: Installation and usage - Replies (1)

meson test failed with the following ERROR mesage for gegl-0.4.30 .

➜  builddir meson test
ninja: Entering directory `....../gegl-0.4.30/builddir'
[213/320] Compiling C object gegl/libgegl-0.4.so.0.429.1.p/opencl_gegl-cl-color.c.o
FAILED: gegl/libgegl-0.4.so.0.429.1.p/opencl_gegl-cl-color.c.o
ccache cc -Igegl/libgegl-0.4.so.0.429.1.p -Igegl -I../gegl -I. -I.. -Igegl/buffer -I../gegl/buffer -Igegl/graph -I../gegl/graph -Igegl/module -I../gegl/module -Igegl/opencl -I../gegl/opencl -Igegl/operation -I../gegl/operation -Igegl/process -I../gegl/process -Igegl/property-types -I../gegl/property-types -I/usr/local/include/babl-0.1 -I/usr/include/glib-2.0 -I/usr/lib/x86_64-linux-gnu/glib-2.0/include -I/usr/include/libmount -I/usr/include/blkid -I/usr/include/gio-unix-2.0 -fdiagnostics-color=always -D_FILE_OFFSET_BITS=64 -Wall -Winvalid-pch -std=gnu11 -O2 -g -DHAVE_CONFIG_H -Ofast -DGEGL_ENABLE_DEBUG -Winit-self -Wmissing-declarations -Wpointer-arith -Wno-deprecated-declarations -Wmissing-prototypes -Wold-style-definition -fPIC -pthread '-DLIBDIR="/usr/local/lib/x86_64-linux-gnu"' '-DG_LOG_DOMAIN="GEGL"' '-DGEGL_LOCALEDIR="/usr/local/share/locale"' -MD -MQ gegl/libgegl-0.4.so.0.429.1.p/opencl_gegl-cl-color.c.o -MF gegl/libgegl-0.4.so.0.429.1.p/opencl_gegl-cl-color.c.o.d -o gegl/libgegl-0.4.so.0.429.1.p/opencl_gegl-cl-color.c.o -c ../gegl/opencl/gegl-cl-color.c
../gegl/opencl/gegl-cl-color.c:32:10: fatal error: opencl/colors.cl.h: No such file or directory
  32 | #include "opencl/colors.cl.h"
     |          ^~~~~~~~~~~~~~~~~~~~
compilation terminated.
[214/320] Compiling C object gegl/libgegl-0.4.so.0.429.1.p/opencl_gegl-cl-init.c.o
FAILED: gegl/libgegl-0.4.so.0.429.1.p/opencl_gegl-cl-init.c.o
ccache cc -Igegl/libgegl-0.4.so.0.429.1.p -Igegl -I../gegl -I. -I.. -Igegl/buffer -I../gegl/buffer -Igegl/graph -I../gegl/graph -Igegl/module -I../gegl/module -Igegl/opencl -I../gegl/opencl -Igegl/operation -I../gegl/operation -Igegl/process -I../gegl/process -Igegl/property-types -I../gegl/property-types -I/usr/local/include/babl-0.1 -I/usr/include/glib-2.0 -I/usr/lib/x86_64-linux-gnu/glib-2.0/include -I/usr/include/libmount -I/usr/include/blkid -I/usr/include/gio-unix-2.0 -fdiagnostics-color=always -D_FILE_OFFSET_BITS=64 -Wall -Winvalid-pch -std=gnu11 -O2 -g -DHAVE_CONFIG_H -Ofast -DGEGL_ENABLE_DEBUG -Winit-self -Wmissing-declarations -Wpointer-arith -Wno-deprecated-declarations -Wmissing-prototypes -Wold-style-definition -fPIC -pthread '-DLIBDIR="/usr/local/lib/x86_64-linux-gnu"' '-DG_LOG_DOMAIN="GEGL"' '-DGEGL_LOCALEDIR="/usr/local/share/locale"' -MD -MQ gegl/libgegl-0.4.so.0.429.1.p/opencl_gegl-cl-init.c.o -MF gegl/libgegl-0.4.so.0.429.1.p/opencl_gegl-cl-init.c.o.d -o gegl/libgegl-0.4.so.0.429.1.p/opencl_gegl-cl-init.c.o -c ../gegl/opencl/gegl-cl-init.c
../gegl/opencl/gegl-cl-init.c:38:10: fatal error: opencl/random.cl.h: No such file or directory
  38 | #include "opencl/random.cl.h"
     |          ^~~~~~~~~~~~~~~~~~~~
compilation terminated.
ninja: build stopped: subcommand failed.
Could not rebuild ....../gegl-0.4.30/builddir

Any suggestions please?

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  Disparities between stroke selection and stroke path
Posted by: CtrlAltDel - 06-04-2021, 11:16 PM - Forum: General questions - Replies (7)

What is the reason for the difference in results between stroke selection and stroke path?  Stroke selection is not perfectly round and not smooth and is twice as large as the stroke path operation performed on the same sized oval design.

Is there any way to get a smooth and true to shape result using stroke selection, or is that not the purpose of stroke selection?

[Image: uPDPTQN.png]

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  Tool Options Window
Posted by: sayluv - 06-04-2021, 05:38 PM - Forum: General questions - Replies (1)


I have the latest version of OS X and Gimp 2.10.22 (revision 3).

What causes the Tool Options to pop out like in the attached pic and how do I move it back to where it was before?


Attached Files Thumbnail(s)
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  os mojave and 2.10 ....ok?
Posted by: Deanna - 06-04-2021, 04:36 PM - Forum: General questions - Replies (4)


I'm using GIMP 2.8 and am contemplating whether I should upgrade to 2.10 (or not??).... but I'm on an older MBP that's a 2014 running OS Mojave. Can it handle Gimp 2.10? 

Also, if I do upgrade, will I lose anything in the different functions or will I have trouble opening my 2.8 projects after the upgrade.


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