GIMP: Difference between revisions

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m (→‎top: Unicodifying, replaced: [[Image: → [[File:)
(Remove transparent RGB pixels warning--as far as I'm aware, this hasn't been a problem in GIMP for over 10 years. So it should be okay to remove)
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[https://github.com/Artfunkel/gimp-vtf/releases Download the GIMP VTF plug-in here.] It allows you to specify a layer as the alpha channel of the output, bypassing the issue below.
[https://github.com/Artfunkel/gimp-vtf/releases Download the GIMP VTF plug-in here.] It allows you to specify a layer as the alpha channel of the output, bypassing the issue below.
=== RGB of transparent pixels ===
{{modernDeprecated|Newer versions of GIMP no longer have this problem and fully support RGB transparent pixels.}}
GIMP's developers consider the alpha channel to represent transparency, and are not interested in supporting other uses of it. This means that GIMP is quite happy to destroy or ignore RGB color data in pixels with 0% alpha, creating horrendous problems in most 3D engines:
* When the alpha channel is not being used for transparency, visible image data is replaced by jagged-edged areas of pure black
* When alpha ''is'' transparency, [[$translucent#Filtering_borders|semi-black borders appear]] around the edges of materials with sharp edges (a result of realtime GPU filtering)
Fortunately, so long as [http://docs.gimp.org/2.6/en/gimp-dialogs-structure.html#gimp-layer-mask Layer masks] are used the only operation known to trigger the problem in current versions of GIMP (future releases may be different!) is "Merge Layers". As a workaround, consider using "New from Visible" instead.


== Usage with GoldSrc ==
== Usage with GoldSrc ==

Revision as of 21:50, 14 April 2025

GIMP's mascot, Wilber

GIMP GIMP (GNU Image Manipulation Program) is a free and open source image editor. Download it from gimp.org, or from the Microsoft Store for Windows Windows systems.

Icon-Bug.pngBug:If you find that GIMP keeps scanning for fonts whenever it starts, download fontconfig 2.4.2 and extract to C:\Program Files\GIMP-2.0\.  [todo tested in ?]

Usage with Source

VTF support

Gimp vtf opt.png

Download the GIMP VTF plug-in here. It allows you to specify a layer as the alpha channel of the output, bypassing the issue below.

Usage with GoldSrc

Warning.pngWarning:GIMP tends to mess up colors of 8-bit images, tinting the image slightly green, adding red pixels, and messing up the color of transparency. It is highly recommended to do any editing in full 24-bit color instead, and use IrfanView, WadMaker, or even Wally for converting the textures to 8-bit.

Export settings

  • GIMP export settings for TGA files (RLE compression should be disabled for 32-bit images and game icons)

    GIMP GIMP export settings for TGA files
    (RLE compression should be disabled for 32-bit images and game icons)

  • GIMP export settings for BMP files

    GIMP GIMP export settings for BMP files

See also

Mod tools
Map editors
Map compilers
Map compiler frontends
Map converters
005 Decompiler • BSPSource • MapFool • VMEX
Map tools
AutoBSPpackingTool • BSPEntSpy • Crafty • Convexer • EntEd • Entspy • JERC • Map Analyst • Map Obfuscator • Material Enumerator • Pakrat • Source Compile Analyzer • TAR • TeamSpen's Hammer Addons • Vgroup • VMF Optimizer • VMF Updater • WinBSPZip • LumpStich • VPKEdit
Model compilers
Model compiler frontends
Model converters
Model tools
3Dcoat • 3DS Max • Blender • Cinema 4D • Fragmotion • GMax • HLMV++ • kHED • Lightwave • Maya • MilkShape 3D • Modo • SourceOps • VSIF2VCD • Softimage Mod Tool • Zbrush
Displacement tools
Particle converters
Texture converters
Texture tools
Sound tools
VPK tools
Libraries
AVIKit • HLLib • VectorLib • VTFLib
Plugins
Other
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