Nostr notes by CmykStudent

I'm not sure what "lose" means here. We don't ...

2026-10-09T17:48:32Z

In reply to nevent1q…psvy
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I'm not sure what "lose" means here. We don't sell GIMP so there's no money lost, and if someone has already decided they don't like the interface, then it's great that they have an option that works better for them (as they already do with Affinity, Krita, etc).

Went back to my local NDE Gradient filter branch and actually got ...

2026-05-16T03:18:40Z

Went back to my local NDE Gradient filter branch and actually got it working! Previously you could toggle the visibility of gradient filters, now they're fully editable.

We got a number of requests for the Gradient tool to be non-desturctive, so I'm glad that that's pretty close to happening now!

Very early work, but proof-of-concept for a #GIMP shape tool. ...

2026-04-23T17:15:39Z

*Very* early work, but proof-of-concept for a #GIMP shape tool. :)

I plan to add an option for merging the shape down immediately (destructive workflow) as well as fill/stroke settings in the tool itself.

I also think we'll need to add a way to save & load shapes like we do with brushes (default shapes + custom ones you want to add).

We'll see what people think once I have something ready for a draft merge request.

Hmm... How did this icon get here? :) ...

2026-04-23T00:10:53Z

Hmm... How did this icon get here? :)

In our April Fool's post I joked about implementing a 1-bit ...

2026-04-11T14:51:24Z

In our April Fool's post I joked about implementing a 1-bit color mode, so it's fitting the first new file format import support I'd work on would be 1-bit as well!

MacPaint was released in 1984 on the first Macintosh PC. As you can see, it was black and white only - a neat historical format. The plug-in still needs some polish and error-handling, but it works well on my test images so far.

We dropped 32bit Windows support in GIMP 3.2.2. Unfortunately, ...

2026-04-05T17:54:10Z

We dropped 32bit Windows support in GIMP 3.2.2. Unfortunately, this meant also losing our 32bit-only TWAIN scanner plug-in.

Since the release, there've been several user reports asking where the scanning feature went. I decided to dive into the 64bit Windows Image Acquistion (WIA) API to see if I could make a new scanning plug-in.

After some struggles dealing with the sparse documentation, I finally have a proof of concept! Hopefully we can get it polished up and restore scanning on Windows.

And yet we have requests from users for more, like on Steam: ...

2026-03-25T14:53:18Z

In reply to nevent1q…cvrv
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And yet we have requests from users for more, like on Steam: https://gitlab.gnome.org/GNOME/gimp/-/issues/10061 😀

Quick update since I rebased this branch for (eventual) 3.4 ...

2026-03-15T19:09:35Z

In reply to nevent1q…j7x5
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Quick update since I rebased this branch for (eventual) 3.4 development. I cleaned up the channel code a bit so it now properly separates out the Key channel from the Cyan/Magenta/Yellow channels.

I've started a small experiment to see how difficult it would ...

2026-02-24T13:30:29Z

I've started a small experiment to see how difficult it would be to port our file chooser dialogues to "native" versions (GtkFileChooserNative). This would mean you'd get your OS specific one when opening/saving a file, rather than the current GIMP default.

So far, I can see that most of our dialogues can be trivally ported (like the QBist plug-in, screenshot from Bruno Lopes).

Unfortunately, the main image export dialogue will require a full UI redesign. More to do after GIMP 3.2!

RE: https://floss.social/@GIMP/116104302594520127 If you're ...

2026-02-20T18:48:35Z

RE: https://floss.social/@GIMP/116104302594520127

If you're interested in working on GIMP this summer, check out our project list. You could be the hero to add a shape tool!
(Or any of the other projects, including one you come up with yourself!)

quoting
note1uzu…5dr4

https://summerofcode.withgoogle.com/programs/2026/organizations/gnu-image-manipulation-program

GIMP has again been accepted as part of the Google Summer of Code project - see the link for details and some project ideas.

We have a no-AI policy: in particular we need people who will understand the cod they write :-) and write code that we can maintain.

Feel free to get in touch - see https://www.gimp.org/discuss.html

#GIMP #GIMP3 #GSoC #GoogleSummerOfCode

While non-destructive filters are a cool addition to GIMP, ...

2026-02-12T21:40:33Z

While non-destructive filters are a cool addition to GIMP, they're also somewhat confusing for people use to the 2.10.

We included a "Merge Filter" option to merge down filters, but we found it was often overlooked.

Denis Rangelov (npub16cx…jfpd) came up with a redesign where we added an icon toggle next to the OK button. I put together a prototype to test the UX experience. Feel free to try out the AppImage and let us know what you think!

https://gitlab.gnome.org/GNOME/gimp/-/merge_requests/2626

I did #globalgamejam this weekend, and one of my teammates used ...

2026-02-04T15:41:20Z

I did #globalgamejam this weekend, and one of my teammates used Procreate. He shared palette swatches which I could not open in GIMP (npub1jxd…txs3) ...

...I took that as a personal challenge. :)

Afterwards I reviewed the files (zipped JSON) and few others I found online, and submitted a merge request to add initial support.

We ended up adding a small new feature while doing bugfixes for ...

2026-01-19T21:03:53Z

We ended up adding a small new feature while doing bugfixes for vector layers in GIMP 3.2.

You can now drag and drop patterns and colors to quickly change the vector layer fill, similar to how you can drag colors to change text layers.

I think it's pretty neat!

Ah! The color issue is because our DDS plug-in uses BGRA colors ...

2025-12-21T20:39:07Z

In reply to nevent1q…erhp
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Ah! The color issue is because our DDS plug-in uses BGRA colors while bc7enc_rdo expects RGBA. Fixing that corrects the colors, though there's still other issues to review.

I'm tinkering with incorporating Richard Geldreich's ...

2025-12-21T20:31:51Z

I'm tinkering with incorporating Richard Geldreich's bc7enc_rdo library in GIMP's DDS plug-in. This would allow us to export DDS BC7 textures (BC7 import support was added in 3.0).

Screenshots shows the first attempt. Obviously work remains to be done, but it didn't crash like I expected the first time I ran it, so I'm pretty happy!

Hi! If you feel like sharing what irks you, we're happy to ...

2025-12-07T18:23:58Z

In reply to nevent1q…gwjl
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Hi! If you feel like sharing what irks you, we're happy to take a look at it.

We also have a UX repo now (https://gitlab.gnome.org/Teams/GIMP/Design/gimp-ux/-/issues), where we try to collect user feedback and develop better designs from it.

While reading the PSD specification, I saw that GIMP already has ...

2025-11-28T16:19:05Z

While reading the PSD specification, I saw that GIMP already has code to support importing several types of Adjustment Layers.
I did a quick test with connecting the Threshold, Posterize, and Invert code to our PSD plug-in, and it seemed to work well!

Hue/Saturation, Levels, and Curves should also be easy enough to add support for, since we already support PSD presets for those filters.

RE: https://fosstodon.org/@zemarmot/115578776393581034 Full CMYK ...

2025-11-19T22:55:42Z

RE: https://fosstodon.org/@zemarmot/115578776393581034

Full CMYK mode and vector masks are my contributions to the plan! :)

A lot of cool stuff will be showing up in 3.4 and beyond.

quoting
note1qkt…kdsj

With GIMP (npub1jxd…txs3) 3.2 on the final stretch, today I spent quite some time preparing #GIMP 3.4 and 3.6 initial roadmaps 🗓️ with input of what other contributors want to work on (with the usual assumption that roadmaps are "fluid" and can change anytime; it's a tool for us to self-organize, not a promise to others).

Organizing future works is always a nice feeling as we can see where we are going! 🎯

The concept of a "maskable adjustment layer" came up in ...

2025-11-08T20:26:53Z

The concept of a "maskable adjustment layer" came up in conversation - where you can selectively mask an NDE filter on the layers below.

I realized that after ZeMarmot :gimp: (npub1wvm…5rdg) 's work on making passthrough layer groups cover the full group render, we basically have this already. With a minor code tweak I'll be submitted soon, you can recreate maskable adjustment layers right in GIMP!

A WIP UI for non-destructive filters applied to layer masks. This ...

2025-11-01T20:24:53Z

A WIP UI for non-destructive filters applied to layer masks. This is the tricky part - the actual implementation code was pretty simple. :)

I'm not sure if the switcher should always appear, even if the mask (or layer) has no filters, or only if both the layer and mask have active filters. Feedback appreciated!

One last "big" feature I'm trying to finish before ...

2025-10-26T14:11:30Z

One last "big" feature I'm trying to finish before the 3.2 release candidate deadline - vector masks!

The essential functionality is there, as can be seen below. I just need to clean it up and generalize the path tool's vector code to also respond to vector masks.

A minor UX-related draft, based on ...

2025-10-18T05:56:07Z

A minor UX-related draft, based on https://gitlab.gnome.org/GNOME/gimp/-/issues/13377 and some discussions I've seen.

This makes the image tab bar sensitive to drag-n-drop operations, and creates a new image when you drag one over on it. More testing needs to be done to make sure it doesn't cause conflicts elsewhere in GIMP, but it seems like a nice little quality of life update.

This is a bit different - it's a screenshot of #Inkscape ! ...

2025-10-12T15:30:02Z

This is a bit different - it's a screenshot of #Inkscape !

I'm currently working on vector PDF export in #GIMP and the best way to test is to see if I can open and edit them in Inkscape. So far, so good!

(Definitely need to get better at vector art so I can make prettier screenshots)

I've put together an AppImage with the latest version of the ...

2025-09-21T15:39:21Z

I've put together an AppImage with the latest version of the SVG export WIP. You're welcome to try it out and see what you think.

You can get it by going to "View exposed Artifacts", clicking on "Linux Appimage", then following the links down until you get to the actual .appImage file.

https://gitlab.gnome.org/GNOME/gimp/-/merge_requests/2469

Progress continues on SVG export! Now it exports layer groups and ...

2025-09-17T22:15:12Z

Progress continues on SVG export! Now it exports layer groups and some initial text layers (font-size only for now).

I've got an initial GUI with options - next step is to enable saving raster layers as embedded base64 encoded images. I also want to give the option to link raster layers, but one step at a time.

(My secondary goal is to make sure the SVG output is correct so I don't create new bug reports for Martin Owens :inkscape: :flag_nonbinary: (npub1wg8…q6l7) in #Inkscape !)

More than likely yes. The color profile tells printers how to ...

2025-09-16T18:04:50Z

In reply to nevent1q…06ld
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More than likely yes. The color profile tells printers how to interpret the CMYK channels - if it's not in the file, then yes, it's likely to be considered "broken".

If the specification actually says that you have to have an associated profile to export a CMYK TIFF, we could perhaps lock the option (as we do with CMYK JPEGXL export).

As a test of our new vector layer public API, I've started ...

2025-09-15T15:05:07Z

As a test of our new vector layer public API, I've started work on an SVG export plug-in in #GIMP https://gitlab.gnome.org/GNOME/gimp/-/merge_requests/2469

My hope is this will be helpful to people who want to export their projects for further work in dedicated vector graphics editors like #inkscape !

Feel free to share if there are any export options you think we should add (the immediate one is how to handle raster layers - ignore, embed, or link are the current options we're thinking)

We recently merged an initial version of vector layers in #GIMP ! ...

2025-08-22T17:36:04Z

We recently merged an initial version of vector layers in #GIMP ! Very happy that we were able to update Hendrik Boom's 2006 project and finally get it across the finish line. :)

There's still plenty of UI/UX work to be done but I'm curious - what are some good "next steps" for vector layers in a raster editor?

I assume vector layer masks would be helpful, along with the long-requested shape tool.

Fair! The most important thing is that you can accomplish your ...

2025-08-09T14:10:33Z

In reply to nevent1q…j40p
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Fair! The most important thing is that you can accomplish your tasks - whether with 2.10 or 3.0.

I haven't come across most of the bugs you mention, so I'll look into it. The "disappearing brush" might be due to a filtering bug - if so, it's fixed in source and should be available in the next release. Our co-maintainer is doing a lot of post-3.0 code clean-up and review, so hopefully that will capture more problems you mentioned.

Hi again! Any specific areas we should look at to fix? There are ...

2025-08-09T13:45:23Z

In reply to nevent1q…w0au
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Hi again! Any specific areas we should look at to fix?

There are a lot of workflows possible in GIMP, and it's easy to miss how some are affected (for instance, pasting as a new layer versus as a floating selection seems to have been a very polarizing change).

Compatibility is really important - we want to make sure no one ...

2025-07-30T17:39:13Z

In reply to nevent1q…wk6e
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Compatibility is really important - we want to make sure no one loses data.

A fun example of this is that one of the original Google logos was made in GIMP in 1998, and it still opens in GIMP 3 just fine: https://www.google.com/logos/google5.xcf :)

From my WIP branch, CMYK channels in #GIMP ! ...

2025-07-24T05:46:20Z

From my WIP branch, CMYK channels in #GIMP !

Is anyone familiar with Meng+Scott Allen Burns upsampling? ...

2025-07-16T19:26:56Z

Is anyone familiar with Meng+Scott Allen Burns upsampling?

I'm working on implementing spectral/pigment blending for GIMP's MyPaint brushes (now that we've ported to the version 2 brushes).
I'm trying to learn more about the theory behind the blending, and according to https://discuss.pixls.us/t/mypaint-2-0-alpha-released-with-spectral-pigment-brush-layer-mode/11086, they used a modified "Meng+Scott Allen Burns upsampling" algorithm.

I assume there's some research paper that discusses it, but I haven't had much luck yet finding a specific one by Meng & Burns.

It may be that if you change the setting to Add but GIMP crashes, ...

2025-07-16T15:40:33Z

In reply to nevent1q…q5dh
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It may be that if you change the setting to Add but GIMP crashes, the setting isn't being saved on exit. If you open GIMP, switch the setting, close and reopen, is Add retained?

As for crashes, please feel free to report the stacktrace on our bug tracker if you haven't already: https://gitlab.gnome.org/GNOME/gimp/activity
We're trying to fix them all, but some are difficult to reproduce without more info (like, some bugs only affect Flatpak, others only on macOS, etc).

Hi! Hmm - is it reseting to subtract mode each time you restart ...

2025-07-16T14:28:11Z

In reply to nevent1q…w7x8
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Hi! Hmm - is it reseting to subtract mode each time you restart GIMP or when you switch tools? I haven't been able to replicate so far, but I'll look into it.

By chance, if you hold Shift while in Subtract mode, does it switch you back to Add mode?

An early example of creating vector layers via Python scripting ...

2025-07-09T04:38:11Z

An early example of creating vector layers via Python scripting in #GIMP. In addition to giving access to plug-in developers, we'll eventually use this to load SVGs as vectors (and load vector layers from formats that support them like PSD and PSP)!

There's still a lot of work to be done, both in the public API and internally, but progress continues.

A small side project, creating a plug-in that loads Seattle ...

2025-06-13T17:14:55Z

A small side project, creating a plug-in that loads Seattle Filmworks images.

Seattle Filmworks was a film digitization company - you'd send them your film, and they'd send you back floppy disks with .sfw files and proprietary viewer. The images were mangled JPEGs, with increasingly complex changes as time went on.

The in-progress plug-in supports the first two versions of the file format, which are the most common.

I've been using a modified #Rawtherapee plug-in to load ...

2025-05-29T16:56:39Z

I've been using a modified #Rawtherapee plug-in to load Camera RAW images in #ART (#anotherrawtherapee) and then edit them in #GIMP for my photography class.

I finally cleaned the code up and submitted it for the next development release. So hopefully soon, you'll be able to use ART in addition to the existing #darktable and RawTherapee RAW loaders! :)

A while back, a developer named Steve Williams contributed a ...

2025-05-26T02:52:39Z

A while back, a developer named Steve Williams contributed a working draft for a JPEG 2000 export plug-in for #GIMP (it suited their needs, but needed some work to be more general)

I took some time to finish polishing it, and now you can export 8 and 16bpc JPEG 2000 images, both as JP2 containers and J2K codestreams. However! I'm not sure what export options are relevant to include in the export dialogue.

If you use JPEG 2000, I'd appreciate any suggestions of what controls to add!

More progress on the vector layer code for #GIMP 3.2 in the last ...

2025-05-23T03:33:13Z

More progress on the vector layer code for #GIMP 3.2 in the last few days. Accessing the Fill/Stroke settings is now faster by double-clicking the preview, and you can switch the path used to create the shape live!

Another important thing is that the transform tools affect the path directly. Before, if you moved the layer rather than the path, it would snap back to the path's position when edited - now they move together.

Still a lot to do, both code and UX wise, but we're getting there!

I've been working on better integrating layer effects with ...

2025-05-16T14:23:05Z

I've been working on better integrating layer effects with the undo/redo history in #GIMP. Currently you can undo/redo adding, removing, and reordering filters.

This WIP connects editing filters as well, so you can revert back to previous layer effect settings. This should also help prevent surprises when Ctrl + Z removes the filter entirely rather than just reverting to a previous edit!

A #GIMP WIP inspired by a @npub1fw7…dva0 LibreArts article. ...

2025-04-22T02:29:38Z

A #GIMP WIP inspired by a Aleksandr Prokudin (npub1fw7…dva0) LibreArts article.

It's a Total Ink Coverage display filter! A simple algorithm that shows how much CMYK ink is being used in a particular part of the image. This is useful to knwo for printing, as different paper has different ink limits.

I want to integrate it with the soft-proofing pop-over as well, but this is a nice start.

Hi! Actually, GIMP 3 supports importing and exporting CMYK JPEGs, ...

2025-04-02T01:30:05Z

In reply to nevent1q…t64k
_________________________

Hi! Actually, GIMP 3 supports importing and exporting CMYK JPEGs, TIFFs, PSDs, and JPEG-XL images already. Next step is a full CMYK mode, which you can see any early demo of here: https://fosstodon.org/@CmykStudent/114073031868807701

I'm truly honored that @npub1wvm…5rdg has entrusted me with ...

2025-04-01T16:14:39Z

I'm truly honored that ZeMarmot :gimp: (npub1wvm…5rdg) has entrusted me with this responsibility, and I'm excited to be a part of this new direction for GIMP (npub1jxd…txs3)

https://www.gimp.org/news/2025/04/01/jeffs-image-format-support/

For what it's worth, this issue was discussed during a team ...

2025-03-18T01:51:31Z

In reply to nevent1q…7w94
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For what it's worth, this issue was discussed during a team meet-up in the last few years: https://developer.gimp.org/conferences/wilberweek/2023-amsterdam/#gimp-renaming

It's one of the many things that developers want to come back to, after we recover from the 3.0 release.

As we reach the finish line for the 3.0 release, I thought ...

2025-02-27T00:32:11Z

As we reach the finish line for the 3.0 release, I thought I'd post an older (pre-Color Space Invasion) test of a full CMYK mode in GIMP (npub1jxd…txs3). It's near the top of my TODO list to work on once the dust settles from the final 3.0 release, especially with all the color space improvements for anyRGB!

Hi! In fact, we have a merge request for vector layers (which ...

2025-02-10T18:58:41Z

In reply to nevent1q…wpdt
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Hi! In fact, we have a merge request for vector layers (which would enable a shape tool). It's been worked on by several people, and we're hoping to finish it for the next release after 3.0.
https://gitlab.gnome.org/GNOME/gimp/-/merge_requests/551

There was a report from a few years ago about not being able to ...

2025-01-19T18:47:51Z

There was a report from a few years ago about not being able to open Google Drive images in #GIMP. The assumption was that there were issues with accessing volatile files on a cloud platform.

The problem turned out to be much simpler - Google Drive returns an ID rather than the actual file name, so our auto-detect function couldn't match the image extension! :)

Thanks to help from Khalid Abu Shawarib, we now use the display-name which works for all files!

https://gitlab.gnome.org/GNOME/gimp/-/issues/5738

GIMP 3.0 will now support loading DDS images with BC7 ...

2025-01-11T18:31:56Z

GIMP 3.0 will now support loading DDS images with BC7 compression! Thanks to Jacob Boerema for his help and the image testing framework he developed to check for regressions.

(I didn't realize it until we closed the issue, but Aleksandr Prokudin (npub1fw7…dva0) was the one who originally requested this support a few years ago!)

https://gitlab.gnome.org/GNOME/gimp/-/issues/5411

In between working on bug fixes for GIMP 3.0, I've been ...

2024-12-31T04:35:32Z

In between working on bug fixes for GIMP 3.0, I've been trying to learn DDS's BC7 format since a lot of people have requested support for it.

Fortunately there's good documentation and reference implementations! This is my first version - obviously not 100% right, but I think I'm on the right path.

Thanks to @npub1wvm…5rdg's new filter API, we can now ...

2024-12-23T18:09:52Z

Thanks to ZeMarmot :gimp: (npub1wvm…5rdg)'s new filter API, we can now import legacy Color Overlay layer styles in PSDs!

I've posted an issue to figure out how to match the other layer styles to GEGL filters, so we can implement them as well. If you're familar with either and want to help, please share suggestions.

https://gitlab.gnome.org/GNOME/gimp/-/issues/12606

More progress on the test Layer Styles PSD importer for GIMP - ...

2024-12-16T21:36:46Z

More progress on the test Layer Styles PSD importer for GIMP - now I can load multiple styles per layer!

@npub1wvm…5rdg is developing a new API that lets you apply NDE ...

2024-12-08T18:01:42Z

ZeMarmot :gimp: (npub1wvm…5rdg) is developing a new API that lets you apply NDE filters in #GIMP plug-ins, for the 3.0 RC2 release.

While testing the branch, I made a quick edit to the PSD import plug-in, and verified we'll be able to load Photoshop layer styles!

This is a work in progress (and I think matching the GEGL filter properties with PSD Layer styles will take some work), but it's encouraging. :)

GitLab's been down on-and-off recently, which has slowed work ...

2024-11-27T17:44:01Z

GitLab's been down on-and-off recently, which has slowed work on pushing bugfixes for #GIMP 3.0RC2.

In the mean time, I've been tinkering on my Dreamcast PowerVR texture import plug-in. It'll likely be my first image format submission after the final 3.0 release. :)

Does anyone know where I could find good sample images for .pvr ...

2024-11-16T14:38:58Z

Does anyone know where I could find good sample images for .pvr files? These are texture image files primarily used for SEGA Dreamcast games.

I'm working on an import/export plug-in in-between bugfixes for 3.0. I have a few samples, but more would be great - there's a lot of internal types like indexed and bumpmap PVRs.

Awesome! It looks like it was converted to a GEGL filter: ...

2024-11-09T00:10:42Z

In reply to nevent1q…a5wt
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Awesome! It looks like it was converted to a GEGL filter: https://gegl.org/operations/gegl-color-exchange.html

The code itself is now in GEGL: https://gitlab.gnome.org/GNOME/gegl/-/blob/master/operations/common-gpl3+/color-exchange.c

Cool! I actually helped add Amiga ILBM support to #GIMP in the ...

2024-09-23T21:57:36Z

In reply to nevent1q…28y9
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Cool! I actually helped add Amiga ILBM support to #GIMP in the development version: https://www.gimp.org/news/2023/07/09/gimp-2-99-16-released/#new-image-format-supports-pam-qoi-amiga-iffilbm-dcx

We're in feature freeze as we get ready to release 3.0, but after that I plan on adding more features to our Amiga plug-in. I'd also be interested in adding support for the brush format if you could share some sample files (the issue tracker is here: https://gitlab.gnome.org/GNOME/gimp/-/issues/6161)