STEAM GROUP
GNU Image Manipulation Program G GIMPDev
STEAM GROUP
GNU Image Manipulation Program G GIMPDev
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5 August, 2019
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GIMP for Valve Source Engine Workshop Development / Modding
With this free tool, GIMP, you can make mods or workshop content for any of the games on Steam

Notes
Not Using VTF Plugin
You can use the latest GIMP without the VTF Plugin. Just import your image .tga or .tiff format into VTFEdit and do any necessary changes according to what you're doing. How-to Guide Details in "Insurgency Internals - Understanding Modding"
Which Version of GIMP?
You can install the different versions of programs on their own separate folders. You can only run one session of GIMP at a time. You can download from PortableApps[portableapps.com] to install the latest portable version of GIMP while keeping 2.8.0
2.10 to 2.8 Problem Fix
So Older Versions of GIMP Can't Open XCF Made with 2.10[www.gimp-forum.net] Or Design in 2.10 then paste the flattened image to 2.8 and add your necessary layers/masks
Valve Source Engine Note: Alpha and Color Info
For users of older versions of The GIMP, the program will automatically remove colour information for pixels with an alpha of zero whenever layers are combined. As a work-around for this, you could give those pixels an alpha value of one instead. As of GIMP 2.8.14, pixels with an alpha value of 0 retain their color information when saved as a tga. https://developer.valvesoftware.com/wiki/$translucent

General
Copy / Duplicate Layer mask[discuss.pixls.us]

Note 2: Managing Layer Masks
Moving / copying layer mask to another layer
  1. Select mask
  2. Copy mask Ctrl c
  3. Make new folder
  4. Select folder
  5. Paste mask

  6. Edit mask

  7. Copy mask
  8. Select the mask on layer
  9. OR make a mask on new layer then select that mask
  10. Paste
  11. Anchor

Modding Specifics
Normal / Bump Maps
  1. How NOT to make normal maps[www.katsbits.com]
  2. https://youtu.be/hj7jieqlpjs
    https://www.katsbits.com/smforum/index.php?topic=527.0
  3. Bumpmap[www.gimp-forum.net]
  4. Normal Maps in GIMP[www.gimp-forum.net]
  5. GIMP: Texture Normal Map Tutorials – Specular Spectacular[www.lelanicarver.com]
  6. GIMP Textures and normal maps[www.gamesas.com]

Texturing
  1. Basic Textures Tutorial Collection in Index[wiki.nexusmods.com]
  2. How To Create Hand Painted Textures Without Painting[medium.com]
  3. Smug Tool Painting Tip[www.gimp-forum.net]
Last edited by [UA/SK] Divine Lotus; 6 Aug, 2019 @ 8:58am