GIMP

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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\.

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.

RGB of transparent pixels

Obsolete-notext.pngDeprecated: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, semi-black borders appear around the edges of materials with sharp edges (a result of realtime GPU filtering)

Fortunately, so long as 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

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

  • GIMP GIMP export settings for BMP files

See also

Mod tools
Map editors
Map compilers
Map compiler frontends
Map converters
005 Decompiler 005 Decompiler • BSPSource BSPSource • MapFool MapFool • VMEX VMEX
Map tools
AutoBSPpackingTool AutoBSPpackingTool • Crafty Crafty • Convexer • EntEd EntEd • Entspy Entspy • JERC JERC • Map Analyst Map Analyst • Map Obfuscator Map Obfuscator • Material Enumerator Material Enumerator • Pakrat Pakrat • Source Compile Analyzer • TAR TAR • TeamSpen's Hammer Addons TeamSpen's Hammer Addons • Vgroup Vgroup • VMF Updater VMF Updater • WinBSPZip WinBSPZip • LumpStich LumpStich • VPKEdit VPKEdit
Model compilers
Model converters
Model tools
3Dcoat 3Dcoat • 3DS Max 3DS Max • Blender Blender • Cinema 4D Cinema 4D • Fragmotion Fragmotion • GMax GMax • HLMV++ HLMV++ • kHED kHED • Lightwave Lightwave • Maya Maya • MilkShape 3D MilkShape 3D • Modo Modo • SourceOps SourceOps • VSIF2VCD VSIF2VCD • Softimage Mod Tool Softimage Mod Tool • Zbrush Zbrush
Displacement tools
Particle converters
Texture converters
360g • FixVTF • no_vtf • PBR-2-Source PBR-2-Source • TGAtoDUDV • VTF Creator • VTEX (Source 2) • VTFVer VTFVer
Texture tools
Adobe Photoshop Adobe Photoshop • GIMP GIMP • HL2Tex HL2Tex • Materialize Materialize • Sign Maker Sign Maker • Sky Writer Sky Writer • Source Model Skin Editor Source Model Skin Editor • Terragen Terragen • VMT Editor VMT Editor • VTFCmd VTFCmd • VTF Explorer • VTFEdit VTFEdit → VTFEdit Reloaded VTFEdit Reloaded • VTF Shell Extensions VTF Shell Extensions • VTFTool
Sound tools
VPK tools
Crowbar Crowbar • GCFScape GCFScape • Gibbeds VPK Extractor Gibbeds VPK Extractor • Source 2 Viewer Source 2 Viewer • VPKEdit VPKEdit
Libraries
AVIKit • HLLib HLLib • VectorLib VectorLib • VTFLib VTFLib • VPKEdit VPKEdit
Plugins
Other
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