Hi! I have been using GMIC to enhance some old scannings... Great!
But i noted that when working with big images, or not sooo big, the preview of most GMIC filters is fixed in 100%. You can use more zoom BUT NOT LESS. That is annoying since you cant see what will result unless you apply it and shut the GMIC window.
Is there something im missing about this? Thanks.
Gimp 3.0 i edit a b&w using colors, shadows and highlights, the photo still looked b&w after but when i export as jpeg and print the blacks are browns. Any help? Thanks
Hello!
For a game I'd like to create tiles for tileset. The task is simple: get a image with 3+ layers (colors, and heightmap), for each layer create 3 copy, rotate it 60, 180 ,270 degree and offset it 1*,2*,3* width.
After get the heightmap layer duplicate it, add noise and call the normal map filter. (there are some masking, etc). Get the color layers, add some nose. Flattering down each group of layers.
Because I'd like to use it many times, i created (or try to create) a plugin for it.
Looks like easy.
The problems: because its a python, you need to test is, for the typos too. so each iteration need to restart gimp load the image test the script.
There are no usable documentation. I already found the https://lazka.github.io/pgi-docs/#Gimp-3.0, helped a lot, but lack of examples. all examples for the gimp 2.x
For example, how can I do filter->generic->normal map?
There are some undocumented "features": If you rename a layer, in the gimp UI the name stay the old one (its not a big problem) but after you cant export it into .ora and gimp went some unstable state. If remove a layer from image cant add it again to it, because already had.
Now I have 300+ line of code for that "simple" task, about quarter are dead code ("maybe that work") and not working well:
- after I call <layer>.transform_rotate_simple(rotate_angle,True,0,0) its stay is "floating selection transform" state and somehow need to anchor it how?
- how can I proper call the filters->generic->normal map filter with preset or how set the values?
- how can I proper call the filters->noise->hsv filter with preset or how set the values?
- how can I invert selection?
- how can I proper generate greyscale noise between color rgb(123,123,123) and rgb (133,133,133), I tried the buffer.set(rect, "RGBA u8", bytes(pixels)) with pixels.extend([gray, gray, gray, 255]) it's worked, but not get the right color (I get lighter about rgb(180,180,180), now I use set_pixel but its slow for 64x64 images
- from where can I get some useful examples for gimp 3 python scripting?
Hi. Im using Gimp with three monitors, in windows. I located the canvas at middle screen, and tools at left, layers and other docks at right. Similar to the Single-window mode. All is ok meanwhile you work in a single image. But when you open a second image, a new canvas is open (sometimes in the right monitor) Ok, i move the windows to the middle display. The issue is that the floating docks appear attached to the FIRST image. When i click the layers dock, inmediately the FIRST image i opened is brought to the front, even the layers of the second image are displayed in the right. The same happens each time you click any floating dock: The first image is brought to the front.
I dont know if is a bug, but certainly it dont happens in the single-windows mode.
Thinking about this, would be cool to have floating windows meanwhile you have a single canvas with tabs, like in single-windows mode.
Any idea what is happening?
Below, and screenshot, you can see that the second image is focused in layers, meanwhile the first image is displayed in canvas.
(07-28-2025, 12:08 AM)mrkid Wrote: Hi. Im using Gimp with three monitors, in windows. I located the canvas at middle screen, and tools at left, layers and other docks at right. Similar to the Single-window mode. All is ok meanwhile you work in a single image. But when you open a second image, a new canvas is open (sometimes in the right monitor) Ok, i move the windows to the middle display. The issue is that the floating docks appear attached to the FIRST image. When i click the layers dock, inmediately the FIRST image i opened is brought to the front, even the layers of the second image are displayed in the right. The same happens each time you click any floating dock: The first image is brought to the front.
I dont know if is a bug, but certainly it dont happens in the single-windows mode.
Thinking about this, would be cool to have floating windows meanwhile you have a single canvas with tabs, like in single-windows mode.
Any idea what is happening?
Below, and screenshot, you can see that the second image is focused in layers, meanwhile the first image is displayed in canvas.
Hi to myself, ha. I found a workaround. I activated the single-windows and resized Gimp across the three monitors, making Canvas occupy all the middle display. It works great (even i can use all the left monitor, but whocares) BUT, when you close Gimp and open it again, it become open in the left display. With the size and distribution of docks i set, but all at the left. I just drag the window to the correct position, and all is ok.
it is less annoying than the behavior i described in the first post, since i open Gimp once, and it keeps open while working.
BUT i believe that this issues need to be adressed, since they are quirk, and multimonitors setup are very common today.
Here is an screenshot of the single-windows mode across three screens.
please note there is a 'typo(?)' on line 9. Getting this error after installation and opening GIMP:
Error while parsing 'C:\Users\myUN\App\Data\Roaming\GIMP\3.0\controllerrc' in line 9: unexpected character ')', expected string constant - fatal parse error.
checked it out and line 9 is (mapping)).
ty. still working on plug-in installation for BIMP so this may or may not fix things for me (BIMP is insisting I have a 2.0 connection: error: invalid GIMP pplugins folder C:\Users\myusername\AppData\Roaming\GIMP\3.0\plug-ins\lib\gimp\2.0\plug-ins)
It is said that blue + yellow = green.
In GIMP, create new layer with blue color and add new layer with yellow,merge them ,the color don't turn to green,it is yellow.
How can get green color from blue and yellow in GIMP?
I used ChatGPT to draw an image of a dragon that I want to use to insert in a program on a blue background.
When I insert said image, a black "box" is inserted as a background.
When I open the image in GIMP it shows the alpha channel and the checkered background - indicating that the background is indeed transparent, but when I try to verify the image with a 'transparency checker program', it reports that the background pixels are 'opaque'. another program verifies that it's transparent with a "black transparency" color.
i've looked at various tutorials, selected the alpha channel, used the fuzzy select tool, and clicked on the 'checkered area' and hit delete, it does nothing!
I'm running the latest software (3.0.4) on macOS Sonoma 14.6. When I open the program, the panel of tools in the sidebar does not display and when I attempt to open an image, it changes from a gray to black screen and provides no visual feedback. If it weren't for the fact that the program still closes with no issue, I might say that it's freezing.
Attempts to restart my machine or reinstall the program have not helped in any way. What am I missing? I've been using Gimp for very basic photo editing for six years now and this is my first time having a major issue. I'm not sure how to proceed if I can't get it to function.
with my new computer (Windows 11) I also downloaded the latest Gimp version (3.0.4). With my former PC I used two plug-ins provided by ofn.
I downloaded the to plug-ins: ofn3-layer-tiles.zip and ofn3-export-layers.zip. The unzipped folders are in here:
C>user>NAME>AppData>Roaming>Gimp>3.0>plug-ins
When I open Gimp I can see the plug-in "ofn3-layer-tiles" but there is no way to also see the second plug-in. II can't find it in the python console either.
