Several powerful tools are available for modifying and enhancing scenery across the major flight simulation platforms. These tools range from user-friendly editors that welcome beginners to advanced software suites used by professional developers. Choosing the right tool depends on the simulator you use, your experience level, and the type of scenery you want to build—whether that's a custom airport, a regional texture pack, or a complete global mesh upgrade.

World Editor for Microsoft Flight Simulator

The World Editor (or “WEd” in common shorthand) is the official, integrated scenery editor for Microsoft Flight Simulator 2020/2024. It ships as part of the MSFS SDK and provides a visual interface for modifying nearly every aspect of the world. You can add and edit airports, place 3D objects, adjust terrain elevation, and even create custom photogrammetry-free zones. The World Editor’s Project Editor makes it easy to manage complex scenery packages with multiple layers, and its real-time preview window lets you test changes without reloading the simulator. For beginners, Microsoft’s own official documentation includes step-by‑step tutorials that cover everything from placing a simple object to building a full airport.

Orbx Scenery Design Tools

Orbx is one of the best‑known names in flight simulation scenery, and the company provides a suite of tools under the Orbx Scenery Design banner. These tools are designed to work across multiple simulators, including Microsoft Flight Simulator, Prepar3D, and X‑Plane. The Orbx Central application also serves as a content manager, allowing you to install, update, and manage your purchased scenery with ease. For creators, Orbx’s own vector and mesh data can be used as a base for custom projects. The company’s official site offers community forums and developer documentation that cover their proprietary formats and workflows—especially useful if you plan to sell your scenery add‑ons through their platform.

WorldEditor (WED) for X‑Plane

X‑Plane users rely on the WorldEditor (WED) for scenery editing. WED is an open‑source tool created by Laminar Research and the X‑Plane community. It allows you to edit airport layouts, place objects from the default library, and draw ground markings and taxi routes. One of WED’s standout features is its support for the X‑Plane Scenery Gateway, an official repository where users can submit improved airport data for inclusion in the default simulator. The tool also includes a validation checker that flags common errors in your scenery pack, such as misaligned runways or missing markings. You can download the latest version from the X‑Plane Developer portal.

Airport Design Editor (ADE) for FSX and Prepar3D

For those still using FSX or Prepar3D, Airport Design Editor (ADE) remains the go‑to freeware tool. ADE provides a graphical interface for editing airport geometry—including runways, taxiways, aprons, and parking spots—as well as placing objects from the stock object library. The tool can read and write the native .bgl scenery files, making it fully compatible with both simulators. Advanced users can also customize airport lighting, approach paths, and land‑and‑hold‑short operations. The FSDeveloper community hosts a dedicated ADE forum where you can find guides, object libraries, and troubleshooting help.

Customizing Global Scenery

Global scenery customization goes beyond modifying individual airports. It involves changing the underlying terrain mesh, improving texture resolution, adding or replacing vegetation, and introducing custom landmarks that make your virtual world feel unique. These changes can be applied to entire continents or confined to specific regions you frequently fly over.

Using Terrain Mesh Editors

Terrain mesh determines the shape of mountains, valleys, coastlines, and other elevation features. The default mesh in many simulators is derived from low‑resolution digital elevation models, which can leave out important terrain details. Tools like Blender (with GIS add‑ons) or dedicated mesh editors such as Global Mapper allow you to import higher‑resolution data from sources like USGS or SRTM. For Microsoft Flight Simulator, the in‑game terrain editor in the World Editor can raise or lower ground with a brush tool. For X‑Plane, the tool MeshRemexe lets you rebuild terrain with custom source data. A common workflow is to download raw elevation files, process them into a 16‑bit grayscale heightmap, then import that heightmap into your simulator’s scenery format.

Adding Custom Landmarks and 3D Objects

To make scenery truly stand out, many designers add 3D models of real buildings, bridges, stadiums, or lighthouses. Creating these models usually starts in a 3D modeling application such as Blender, SketchUp, or 3ds Max. After modeling and texturing, the object is exported to a format compatible with the target simulator—.glTF for MSFS, .obj for X‑Plane, or .mdl for FSX/P3D. The object is then placed in the scenery editor at the correct geographic coordinates. For historic landmarks, you can often find freely available SketchUp models on the 3D Warehouse, which can be converted and imported with some cleanup. When placing custom objects, pay attention to level of detail (LOD) settings to avoid performance hits. Using multiple LOD versions ensures that distant objects don’t consume unnecessary resources.

Orthophoto Scenery (Real‑World Aerial Imagery)

Orthophoto scenery replaces the simulator’s generic landclass textures with actual satellite or aerial imagery. Tools like Ortho4XP for X‑Plane and FS2020 Ortho Importer (or the built‑in photogrammetry) for MSFS make this process straightforward. Ortho4XP downloads high‑resolution tiles from sources such as Bing or USGS and generates a complete orthophoto scenery package complete with terrain mesh. The result is a dramatic increase in realism, especially in regions where the default textures are blurry or inaccurate. Because orthophoto tiles can be many gigabytes, it’s wise to create them only for areas you fly regularly. Many users share their tile configuration files online, which can save you time when building scenery for whole countries.

Autogen and Object Placement

Autogen refers to the automatic placement of buildings, trees, and other objects based on landclass data. While autogen works well out of the box, you can customize it to better reflect local architecture or vegetation patterns. In MSFS, the World Editor’s **Autogen Editor** lets you modify the density and types of objects that appear in a region. For X‑Plane, the **OpenSceneryX** library adds thousands of free 3D objects that mix with the default autogen. Advanced users can create custom region‑definition files (.agn) that specify exactly which object models are used for each landuse category. This is especially helpful for creating accurate representations of city skylines or forest areas with specific tree species.

Advanced Scenery Development

Once you’ve mastered the basics of object placement and mesh editing, you can move into more advanced territory: writing custom scripts, building dynamic scenery, and optimizing textures for performance. These skills separate casual tweakers from serious add‑on developers who distribute their work commercially.

Using Simulator SDKs

Each major flight simulator provides a software development kit (SDK) that exposes low‑level functionality. The MSFS SDK includes tools for creating custom materials, weather effects, and even aircraft systems, but it also has dedicated scenery editors for building airport lighting configurations and taxiway signs. The X‑Plane SDK allows you to write plugins that can move objects, change scenery state based on time or weather, and control aircraft‑to‑scenery interactions. Both SDKs come with extensive documentation and sample projects. Understanding the SDK’s scenery APIs lets you create dynamic elements such as moving jetbridges, animated windsocks, and birds that react to user presence.

Creating Custom Airport Scenery

A well‑built airport is the most common type of custom scenery. Start by placing runways and taxiways with correct dimensions and surface types. Next, add pavement markings (centerlines, edge lines, holding positions) using the editor’s polyline tools. Then place runway and taxiway edge lights, threshold lights, and PAPI systems—ensuring they match real‑world lighting specifications. Many creators also add custom terminal buildings, hangars, fuel trucks, and ground vehicles. Pay attention to elevation differences: if your airport is on a plateau, the surrounding terrain must be modified to avoid a “cliff” effect. Using flatten polygons in the scenery editor solves this. Finally, test your airport at night to verify lighting visibility and color correctness.

Texture and Material Optimization

High‑resolution textures greatly improve visual quality but can quickly fill your GPU’s VRAM. To keep performance smooth, use standard sizes such as 2048×2048 for large objects and 1024×1024 for smaller items. Compress textures with appropriate formats (DDS for FSX/P3D, BC7 for MSFS, PNG for X‑Plane). Mipmaps are essential for reducing aliasing at distance. In MSFS, you can create custom material “shapes” using the SDK’s material editor, controlling properties like reflectivity, roughness, and wind response for vegetation. Always test your scenery on a mid‑range system to ensure acceptable frame rates; you can always reduce texture resolution for individual objects without rebuilding the entire package.

Conclusion

Whether you’re a casual hobbyist looking to fix a single airport or a professional developer crafting a global scenery package, the tools covered here give you the power to customize your flight simulation environment to a high degree. The World Editor (MSFS), WED (X‑Plane), and ADE (FSX/P3D) provide the core editing capabilities, while supporting applications like Blender, Ortho4XP, and the Orbx suite expand your options for terrain, imagery, and 3D objects. As you gain experience, dive into the SDKs to unlock dynamic scenery and fine‑tuned materials. The flight simulation community is rich with tutorials, forums, and shared resources that make scenery development accessible at every skill level. Start small—maybe a single landmark or your home airport—and gradually build up to larger projects. The results will not only enhance your own flights but may also contribute to the ever‑improving global scenery that benefits all simmers.