I am trying to make graphics for use with the GBA but I need to know how to do make gimp use the colour space and type necessary. The GBA uses a 5.5.5 BGR colour format (five bits per colour and the 16th bit allocated but unused) and I need it to export to a mapped format that I can then convert to the necessary C arrays . Problem is I am fairly green with gimp and have no idea how to do this .

So I’ve been using gimp for a few days now and somehow I adjusted the layers box size and can’t get it to resize back. I can’t increase the size on it with the drag to resize with my mouse horizontally but not vertically. So basically I have a huge box for the palette editor etc above and can only see the layers box in a tiny area and the vertical drag won’t resize it. Somebody help this newbie out please lol.

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Hello:
I am working on an image and already have lots of text layers.  
Now, when I try to add another text item it pops up as though I am editing a pre-existing text layer complete with the text and the message that it has been modified and I must choose between editing and creating a new layer.  
This happens no matter where I click on the image with the text tool.  And no matter what layer is selected, when I click with the text tool the pre existing layer is selected.

I want a new text item.
What have I done and how do I undo it?

Edit:
I have figured it out.
When I resized my canvas I resized all my layers to the canvas size. (Bad move)
So when I click on the canvas it thinks I am clicking on my text box.
I tried selecting the text and using 'crop to selection' but that didn't change the layer boundary.
I had to use the 'layer boundary size' dialog and enter width, length and resize.

I have gimp's tile cache size set to 5 GB (I have 8GB RAM, 1.75G in use). The temp and swap folders are set to a ramdisk. However, whenever I perform some function in gimp (say: moving a layer, filling a region, showing/hiding a layer), I hear what sounds like hard disk access.
How can I get GIMP to use my RAM which is more than sufficient for the size of images I edit, and not touch my disk except when saving and loading?

Hi. I've been using the GIMP 2.8 for a while now for presentation materials, but that has generally involved repeating the same 4 - 5 tasks, so I don't really know the full range of options.

I have a series of photos I have been working on, and some of them were taken with an older camera. These photos seem to have a warmer and deeper color to them than the new ones. I've tried to recapture it by adjusting the camera settings but that does not yield any good results. I was wondering if there is any way of cloning the colors from the older photos to the newer ones, or other way of using the older photo as a template/base for new ones?

A feature that should have been in the core (IMHO) from the word go is center guides. aka "crosshairs"

I was watching the video about rotating using the measure tool here on the forums and it made me think how I would do it. I found this simple script years ago and can't imagine using gimp without it. It will drop 50% horizontal and 50% vertical guides on your current layer. It's nice that it goes by the layer and not image so it makes it easy to rotate objects and text on their center axis and not the center of the canvas size.

You can get center guides through all sorts of plugins, scripts, or even the menus, but if you bind this to a shortcut you are always just a key or key combo away from crosshair guides. I also use a shortcut to clear all guides so I can reuse my crosshairs easily when aligning multiple items. 





I do realize that I could have saved some steps by centering to the canvas first but wanted to show how to reuse the guides easily.

Attached Files

  Gregs Crosshairs.scm.zip (Size: 588 bytes / Downloads: 745)

I am trying to write a batch rotate script, to rotate a number of images by an angle which is passed to the script.
I have the following, which is successfully registered in Gimp:

Is there a way (short of C code and recompiling GIMP) to add a custom paint-method?
I'd like to add a new painter to the list (gimp-context-list-paint-methods) 
So that (gimp-drawable-edit-stroke-selection drawable) will do a custom procedural edit to the pixels.

Hello there. I have a problem that tortures me 2 days now. 
I want to extend the colormap at indexed pictures by one color with script fu.


;get colormap length from header
(set! colormap_length (car (gimp-image-get-colormap image)))     

;get colormap data from tail
(set! colormap (car (cdr (gimp-image-get-colormap image))))

;extend header
(set! colormap_length (+ colormap_length 3))      ;increaze by 3 bytes/1 color

;extend tail
;here, i want to make colormap:=colormap+"000000" thus extend the list

;set new colormap
(gimp-image-set-colormap image colormap_length colormap)

(Variables are defined ok)
I tried almost everythink while playing with let, set, list, cons car etc etc.
Thank you.

Hi, I tried to insert my avatar with dimensions smaller than 100x100 and less than 25Kb.

A message tells me that it has been accepted. Bat I do not see it on the forum near my nick name.