I want to use images like this, the black and white images, as alphas for ZBrush. I can't find out how to make them. Can you make them in GIMP? https://www.textures.com/download/3dbrush0089/127532

I have an image, in which parts have a green value of ~70, but I need to make it around 220. How can I multiply the green value in all the pixels on my image by 3?

I cannot tell exactly what I want to learn but I feel like I just do not know everything. I feel frustrated
when following steps for a specified purpose. As a result, I think I should at least get used to something
basic first.

Is there any recommended text and image tutorials for learning GIMP basics? Like lesson 1 lesson 2 ...
or week 1 week 2....

I do not like to learn through video or youtube because I am not patient enough to watch videos.
I like reading

Hi All,

I am using GIMP 2.10.20 on Win 10 x64. Recently, GIMP started to crash every time I try to launch it, giving the following message: "fatal error: unhandled exception". 
Also, the launch screen contains some weird symbols instead of typical writings (as can be seen in the attached screenshot). Clean reinstall didn't help. I would be grateful for any tips. Thanks.

Hello all,

I'm new to this forum and hope my question is addressed in the right way.
I'm using Gimp 2.10.20 (shortly upgraded from 2.10.12) and have a problem with the rendering filter "Flame".
Everytime, when I try to render something, Flame.exe crashes with an unspecified error.
I already tried to use different layers and apply the filter there, but it doesn't help.
As soon as I select the layer with the gradient flame.exe crashes. Even when I try to apply the filter directly to the background image, it crashes.
Error message is:

using gegl copy
C:\Program Files\GIMP 2\bin\gimp-2.10.exe: LibGimpBase-WARNING: gimp-2.10.exe: gimp_wire_read(): error
GIMP-Error: Plug-in crashed: "flame.exe"
(C:\Program Files\GIMP 2\lib\gimp\2.0\plug-ins\flame\flame.exe)
The dying plug-in may have messed up GIMP's internal state. You may want to save your images and restart GIMP to be on the safe side.

I checked the permissions on the installation directory and changed them for all users to "full permissions", without any progress.
I tried to verify, if it is related to the size of the image - nope (no difference between a small image with a few millimeters or a large with 40x50 cm).
Any of you facing the same issue?

There was a bug in 2.8.x with the flame plugin, which could be worked around using new layers to apply the filter.
That doesn't work in 2.10.12 and 2.10.20.

If you need additional information, please let me know.

Notebook: Win10 64bit, 8GB RAM, 250 GB Harddrive

Can anyone help out here?
Thanks
Daniel

Hi! I would like to ask how to make a border like the one on the picture below? It's the fading border behind the logo. 

   

Hello
I'm trying to print an image with a white turn, I can't seem to have the same margin on the right as on the left
I simulated an image which seems to me centered (I am not a specialist in Gimp), when I print, I have 1cm on the left and 1.4cm on the right.
I print on a Brother, I have tried everything, I can't seem to have the same margin on the right and on the left. In the aut and downstairs it's perfect.
Do you have an idea
Thanks
i m on gimp 2.10

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  utilitaire-pecheur-marge.xcf (Size: 1.9 MB / Downloads: 750)

Hi can someone please help me with my problem? I've been using the gradient tool to put a rainbow color on my image's border however the color that's been showing is grey.

   

I am using Scientific Linux 7, a clone of RHEL 7 and installed 2.10.20 via flatpak. I am finding that there is an offset between the cursor and the region from where the clone tool is copying pixels.
The separation and angle  between both will change depending where the cursor is located on the screen (see attached figure - clone will be using pixels where the cross is located, while cursor is located at the arrow's position). If either falls outside the window clone will fail. A similar effect happens when cropping the image. Just for the sake of it I also installed 2.10.20 in a Windows 7 virtual machine and there clone works as it should. The same holds true when I run GIMP 2.8 under linux.  Has anyone else found such an effect ?

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