What are the best global scenery and mesh add-ons for FSX?
For FSX and FSX: Steam Edition, the best freeware global base is FreeMeshX Global, supplemented by FreeMeshX USA for sharper American terrain. Add Team GEX Enhanced Autogen and 30 cm forest textures for better surface detail. Mesh changes elevation only; it does not replace airports, landclass, coastlines or photo scenery.
Which FSX global scenery combination should I install?
For most pilots, we recommend starting with one global mesh and adding regional or texture upgrades only where they will be visible.
| Add-on | What it changes | Best use |
|---|---|---|
| Near-worldwide FreeMeshX Global terrain | LOD10 elevation data, approximately 38-metre spacing | The best single-package foundation for mountains, valleys and remote terrain |
| Higher-resolution FreeMeshX USA terrain | LOD12 elevation data, approximately 9.5-metre spacing | Sharper ridges, canyons and mountain profiles within the United States |
| Worldwide autogen building and night textures | Changes the appearance of default autogen rather than terrain elevation | Improving cities and built-up areas without installing individual city scenery |
| Sharper 30 cm forest textures | Improves generic wooded ground textures | Low-level VFR flying over forests and rural areas |
For worldwide touring, install FreeMeshX Global first, then add the autogen and forest textures if you want a broader visual upgrade. Pilots who spend most of their time in the United States should place FreeMeshX USA above the global package.
Europe Mesh SRTM v2 and SRTM Mesh for Australia, New Zealand and Papua New Guinea are useful regional alternatives. Do not assume that every regional package is sharper than FreeMeshX Global: compare its stated LOD or elevation spacing, coverage and source data before adding overlapping mesh.
What does terrain mesh improve in FSX?
Terrain mesh controls the shape and height of the ground, so its biggest gains appear around mountains, cliffs, valleys, islands and rolling countryside.
- Mesh does improve: ridge profiles, valley depth, slopes and other elevation-based features.
- Mesh does not improve: ground-image sharpness, road placement, coastlines, airport buildings or runway textures.
- Landclass and ground textures determine which generic surface textures FSX displays.
- Autogen supplies buildings and vegetation placed over those textures.
- Photo scenery replaces generic ground textures with aerial imagery and may conceal a generic texture upgrade.
This distinction explains a common disappointment: installing high-resolution mesh will not make flat farmland or an airport apron look more detailed. It only gives the underlying terrain a more accurate shape.
How should FSX mesh scenery be installed and layered?
Keep each mesh package in its own scenery folder and place global mesh below regional and airport-specific corrections in the FSX Scenery Library.
- Extract the complete download. Multi-part packages must be fully extracted before use. The add-on's main folder should contain a
scenerysubfolder rather than another unnecessary nested copy of the package folder. - Add the package to the Scenery Library. Boxed FSX and FSX: Steam Edition use the same basic scenery system, although their installation directories differ.
- Arrange the priority. From highest to lowest, use airport elevation corrections and local scenery, regional high-resolution mesh, global mesh, then default scenery. Follow an add-on's own instructions if it requires a different position.
- Match the mesh setting. Set FSX's Mesh Resolution to 38 metres for LOD10 global terrain or 10 metres for LOD12 USA terrain. Choosing 1 metre cannot create detail that is absent from the source data.
- Test one addition at a time. Load the same mountainous location after each change so conflicts are easy to identify.
FSX normally uses the most detailed available elevation data where meshes overlap, but Scenery Library priority still matters for equal-resolution files, exclusions and airport corrections. Texture-replacement packages may overwrite default files instead of appearing in the library, so retain backups and follow their included installation notes.
Why does new mesh look wrong or make no difference?
Most mesh problems come from an inactive scenery entry, an unsuitable resolution setting, incomplete extraction or a conflict with local airport elevation data.
- No visible change: confirm that the scenery entry is enabled, raise Mesh Resolution to match the package and test somewhere with pronounced relief. Flat regions may show almost no difference.
- Airport plateaus or trenches: the runway flatten is using a different elevation from the improved surrounding terrain. Install or enable an airport elevation correction above the mesh rather than removing the global package immediately.
- Terrain spikes or holes: disable overlapping regional meshes one at a time. Also check that every part of a multi-part archive was extracted successfully.
- Ground still looks blurry: this is a texture or photo-scenery issue, not a mesh-resolution problem. Adjust texture settings or use an appropriate surface-texture package.
- Loading or stuttering increases: retain global LOD10 terrain and activate very high-resolution regional mesh only where you fly. Autogen density usually has a greater frame-rate cost than changing autogen textures alone.
A clean FSX setup does not need several global meshes competing for the same coverage. Use FreeMeshX Global as the low-priority foundation, add one demonstrably sharper regional layer where needed, and keep airport corrections above both.