Here is the dialog you will see. —choosing the wrong compression will ruin your texture. The Golden Rules of Compression | If you are making... | Choose this format... | Why? | | :--- | :--- | :--- | | Diffuse/Albedo (Color map) | BC1 (DXT1) | Small file size, sharp colors. Use for opaque surfaces. | | Diffuse with Transparency | BC3 (DXT5) | Handles soft edges and alpha channels (glass, hair, foliage). | | Normal Map (Bumpy surfaces) | BC5 (3Dc / ATI2) | Stores X and Y vectors without color artifacts. | | High Quality (Modern games) | BC7 | Best quality, no banding. (Requires newer GPU support). |

Enjoyed this tutorial? Subscribe to our newsletter for more GIMP, Krita, and Blender modding guides.

GIMP 3.0 aims to have better native DDS support, but for now, the community plugin remains the gold standard. Final Verdict The DDS plugin transforms GIMP from a general photo editor into a legitimate game development tool. While the installation is slightly manual and the compression options look intimidating, spending 10 minutes to learn BC1 vs BC5 will unlock the world of PC game modding.

Here is everything you need to know about installing, using, and mastering the DDS plugin for GIMP. Unlike Photoshop (which often requires an Intel plugin) or Paint.NET (which has native support), the open-source standard GIMP does not ship with DDS support out of the box.