Learn which networked X-Plane 12 PCs need UHD scenery, why visual nodes load terrain locally, and how to keep every display in sync.
No. In a networked X-Plane 12 system, UHD scenery is needed only on computers that render an outside view. Each visual computer loads scenery locally, so install the same UHD tiles and matching scenery order on every display node where consistent terrain matters; instructor, avionics-only and control PCs do not need it.
Which networked PCs need the same UHD scenery?
Every computer producing part of the visible 3D scene should have access to the same terrain packages. UHD scenery remains optional, but mixing it with default terrain across adjacent displays can produce obvious differences in elevation, roads, coastlines and object placement.
| Computer role | Install the UHD scenery? | Reason |
|---|---|---|
| Master displaying an outside view | Yes, if UHD is used | It renders terrain locally. |
| External visual or projector PC | Yes | Matching tiles prevent terrain differences between displays. |
| Master without a visible 3D view | Usually no | UHD adds little when that machine is not displaying scenery. |
| Instructor or map station | No | A map or control interface does not require the detailed mesh. |
| Avionics-only or instrument-panel PC | No | It does not render the outside terrain. |
| Standby visual computer | Recommended | Matching scenery avoids a change in terrain when it takes over. |
A non-visual X-Plane installation may still require normal global scenery for its own operation, but it does not need the optional UHD package merely because the master or visual clients use it.
Why does each visual PC need access to the files?
X-Plane's network connection synchronises simulator state; it does not stream mesh and texture files from the master computer. Each visual node reads its own Custom Scenery directory, resolves its own scenery_packs.ini, and renders the resulting terrain.
You can download the package once and copy the required regions to each visual machine, subject to its licence. Before committing the storage, check the available UHD Mesh regions and X-Plane 12 installation details; there is no benefit in installing tiles covering places the networked system will never display.
How do I keep scenery consistent across visual computers?
- Identify every outside-view node. Include the master if it displays scenery, plus every external-view or projector computer.
- Install identical regional tiles. Put the same UHD folders in each node's
Custom Sceneryfolder, or expose the same read-only storage through a suitable operating-system link. - Match the complete scenery stack. Airports, libraries, overlays and base meshes can all affect what appears. Matching UHD alone is not enough when another node has a different airport or overlay package.
- Check scenery priority. Airport scenery and overlays normally sit above base meshes, while UHD belongs with the lower-priority mesh entries. Use our practical guide to arranging scenery_packs.ini rather than blindly copying an old configuration file.
- Restart and verify each node. After changing scenery, launch X-Plane again and inspect
Log.txtfor missing folders, unreadable files or failed scenery loads.
Matching simulator versions and relevant rendering settings also helps. Object-density settings can make buildings or vegetation differ even when every machine uses the same underlying mesh.
Can all PCs use one copy on a network drive?
Yes, visual nodes can point to one shared UHD installation, but local storage is usually the safer arrangement. Several computers may request large scenery files at once, and a slow or interrupted network share can cause longer tile loading, pauses or missing terrain on every connected display.
If shared storage is necessary, use a reliable wired network, keep each computer's own scenery_packs.ini, and confirm that its scenery entry resolves after every reboot. A local SSD copy removes the network share as a single point of failure.
Why might matching PCs still show different terrain?
The usual cause is a different base mesh taking priority on one computer. X-Plane loads one base mesh for a given tile, so an orthophoto package containing its own mesh can replace UHD in the same area rather than combine with it.
- UHD appears on one display only: check that the tile exists, is enabled and loaded without errors on every visual node.
- One display shows photography: that machine probably has an orthophoto mesh above UHD. Our orthophoto installation and load-order explanation covers how those packages interact with other meshes.
- Buildings or roads differ: compare overlays, scenery libraries and object-density settings, not just the UHD folders.
- Terrain changes at a display boundary: verify that both machines have the same regional tile; copying only neighbouring tiles is a common mistake.
- Scenery works until a reboot: a mapped network drive or symbolic link may not be available when X-Plane starts.
The dependable rule is simple: every PC rendering the shared outside view should resolve the same scenery for the area being flown. Machines dedicated to instruments, maps or instructor controls do not need a duplicate UHD installation.