How do I edit FSX DDS textures in Photoshop?

To edit FSX DDS aircraft or scenery textures in Photoshop, back up the original, open the DDS with a compatible plug-in or convert it through DXTbmp, edit RGB and alpha channels separately, then save with the original dimensions, orientation, compression and mipmaps. Keep the finished file in its expected texture folder under the unchanged filename.

The workflow is the same in Microsoft Flight Simulator X and FSX: Steam Edition. Their installation paths differ, but the DDS requirements do not. Work on a copied add-on texture rather than a stock file whenever possible; repairs, updates or Steam file verification can replace modified default files.

What do I need to edit an FSX DDS file?

Photoshop needs a DDS importer and exporter that supports legacy DXT compression, alpha channels and mipmap generation. Photoshop support varies by release and installed plug-ins, so confirm that your exporter offers DXT1, DXT3 or DXT5 rather than only newer DDS formats.

If Photoshop cannot open the file correctly, use DXTbmp as the bridge between DDS and Photoshop. Our DXTbmp-to-Photoshop texture workflow explains how to transfer the image while retaining its alpha channel and FSX-compatible compression.

• Make a backup of the complete texture folder, not just one DDS file.
• Keep a layered PSD master and export a separate flattened DDS copy.
• Record the source file's dimensions, compression, alpha channel and mipmap status before editing.
• Keep Photoshop in RGB mode; do not convert the artwork to CMYK.

How do I edit an FSX DDS texture in Photoshop?

The safest method is to preserve every technical property of the original DDS and change only the artwork or channel that needs editing.

1. Locate the active texture. Aircraft textures are normally inside SimObjects\Airplanes\<aircraft>\texture.... Scenery textures belong in the active scenery package's texture directory. A similarly named file elsewhere may be unused or may belong to another livery.
2. Check for texture fallbacks. An aircraft livery folder may contain a texture.cfg that borrows shared files from another folder. Editing that shared texture can change several liveries; copying the required file into the individual livery folder usually limits the change to that variant.
3. Inspect the original DDS. Note its width, height, DXT format, alpha channel and orientation. Do not resize the canvas unless the model or scenery was specifically designed for the new dimensions.
4. Open or convert the file. Use a compatible Photoshop DDS importer, or transfer it through DXTbmp. Stop if the workflow discards the alpha channel: a texture that looks normal in RGB can still become invisible, excessively reflective or opaque in FSX.
5. Edit the correct channel. Paint colour and markings in the RGB channels. Inspect the alpha channel separately, because FSX materials can use it for transparency, reflectivity or another material property.
6. Save a master copy. Retain layers in a PSD, then flatten a copy for DDS export. This avoids repeatedly compressing an already compressed DDS, which gradually damages lettering, panel lines and colour edges.
7. Export for FSX. Match the original DDS format where possible and generate mipmaps for normal aircraft and scenery textures. Do not select BC7 or another modern-only compression format merely because it appears higher quality.
8. Preserve the stored orientation. Existing FSX DDS files often appear vertically inverted in image software. Match the original file's orientation rather than automatically flipping every texture; conversion tools and DDS plug-ins do not all handle the flip in the same way.
9. Test the result in FSX. Reload the aircraft or restart the simulator so the file is read again. Check daylight, night lighting, reflective surfaces and several viewing distances.

Which DDS compression should I use for FSX?

Use the source texture's compression unless you have a specific reason to change it. Exporters may show either the older DXT name or its corresponding BC label.

Mipmaps are progressively smaller versions stored inside the DDS. Aircraft and scenery normally need them to prevent distant textures from shimmering. Poorly generated mipmaps can blur fine markings or create coloured fringes, but removing mipmaps usually replaces that blur with flickering.

How should I handle alpha, bump and night textures?

Alpha, bump and night textures must be edited according to their material function, not as ordinary colour images.

• Diffuse textures often carry the visible paint in RGB, while their alpha channel controls a material effect. Do not fill the alpha channel white without checking what the original aircraft or scenery uses it for.
• Specular textures, often identified by a name containing spec, control highlights and reflectivity. Their alpha channel may have a separate role defined by the model's material settings.
• Bump textures, commonly containing bump in the filename, use encoded channel data and may look oddly coloured. Painting them as ordinary greyscale images can reverse or destroy the surface detail.
• Night textures, often marked LM, supply illuminated artwork. Retain the original dimensions and alignment so windows, signs and light pools still match the daytime texture.

If the edited aircraft becomes see-through, has opaque windows or shows unexpected reflections, use our FSX transparency diagnosis and fixes to identify whether the alpha channel, compression or material setup is responsible.

Why is my edited DDS upside down, white or blurry?

These faults usually come from orientation, unsupported compression, damaged alpha data, missing mipmaps or editing the wrong copy of the texture.

• Upside down: the exporter changed the vertical orientation. Reopen the exported DDS, compare it with the original and reverse only the export-stage flip.
• White or missing: confirm the exact filename, extension, folder and DXT format. BC7, a corrupt DDS or an unresolved fallback can leave an aircraft untextured; our guide to diagnosing white add-on aircraft textures covers the wider causes.
• Transparent or overly shiny: restore the original alpha channel and export with an alpha-capable format. DXT1 without suitable alpha support is not a substitute for a DXT5 texture containing gradients.
• Blurry at a distance: regenerate a full mipmap chain and check the simulator's global texture-resolution setting. Some softening at distance is intentional; persistent close-range blur is not.
• White halos around transparent edges: extend the surrounding RGB colour beneath transparent pixels before generating mipmaps. Otherwise the compressor blends a white or unrelated background into the visible edge.
• No visible change: reload the aircraft or restart FSX, then verify that you edited the active livery or scenery package rather than a fallback, duplicate or inactive copy.

Where do I install the edited texture?

An edited replacement goes back into the same texture folder under exactly the same filename, while a new aircraft livery needs its own texture folder and matching aircraft configuration entry.

For a separate repaint, duplicate only the files the livery needs, preserve any required fallback configuration and add a unique aircraft variant entry. Our practical FSX repaint installation instructions show how the texture folder and aircraft.cfg entry work together.

Scenery DDS files belong in the texture directory used by that scenery package, with the filename expected by its model or material. Avoid replacing shared global textures unless that is the deliberate aim: one altered shared file can affect airports, aircraft or scenery far beyond the object being edited.