FSX / P3D scenery

FSX Modified Terrain.cfg

A refined terrain.cfg update for Microsoft Flight Simulator X corrects common world rendering quirks and expands texture and landclass behavior for scenery development. Targeted tweaks reduce unwanted rocky artifacts in water bodies while preserving default compatibility, giving designers more control over how coasts, shorelines, and terrain transitions appear across varied regions.

5.4k downloads 318.58 KB Scanned clean
Flight Simulator X Prepar3D

Flight Simulator X terrain is defined in the terrain.cfg file. During testing, it was determined a certain number of modifications to this file will correct some problems with the FS world and also provide more options for scenery designers. For example, in some places, water bodies display rocky areas - this file fixes that. By Richard Ludowise and Luis Feliz-Tirado.

Screenshot of corrected terrain, with rocks removed from the water.

Screenshot of corrected terrain, with rocks removed from the water.

Ready to download Modified Terrain.cfg?

Free for all simmers · 318.58 KB · Scanned clean

File information

Filename
mod_terr.zip
File size
318.58 KB
Virus scan
Clean (scanned with ClamAV)
Access
Freeware
Content rating
Everyone

Download speed: Free tier is capped at 0.5 Mbps. PRO members download at full line speed.

How to install this mod

FSX / P3D scenery
  1. Extract the downloaded archive

    Use 7-Zip (free) or WinRAR to extract the ZIP to a temporary folder. Don't install while still zipped — the simulator can't read inside ZIP files.
  2. Place scenery in Addon Scenery

    Create a folder under FSX\Addon Scenery\ containing scenery and texture sub-folders.
  3. Activate in Scenery Library

    In FSX, go to Settings → Scenery Library → Add Area. Higher priority means it overrides lower entries for the same location.
  4. Always read the included readme

    Every mod ships with a readme.txt or README file. It tells you exactly where files go, what dependencies are needed, and any quirks specific to this add-on.

What’s inside this archive

The archive mod_terr.zip has 13 files and directories contained within it.

File Contents

This list displays the first 500 files in the package. If the package has more, you will need to download it to view them.

Filename/Directory File Date File Size
fs_x_modified_terrain_cfg.htm11.05.0611.88 kB
images11.05.060 B
FSX_Thames_no_rocky_water.jpg11.04.06127.44 kB
FSX_Thames_rocky_water.jpg11.04.06137.70 kB
wsbg.jpg10.29.062.70 kB
modified terrain cfg11.05.060 B
terrain.cfg11.04.06159.02 kB
readme.txt11.06.06618 B
scenery designers11.04.060 B
Vector textures for modified terrain cfg.xls11.04.0672.00 kB
FSX_modified_terrain_cfg11.06.060 B
flyawaysimulation.txt10.29.13959 B
Go to Fly Away Simulation.url01.22.1652 B

2 comments

Read what other simmers think, or add your own.

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Comments below are opinions of individual posters and don’t always reflect Fly Away Simulation’s views. Every comment is manually moderated before publication.
  1. AceWarbirds

    The issue you're experiencing is a conflict of two identical folders with something different in the file... This can also be caused by a Direct X and or you're screen refresh rate set too high or low.

    Many times you will experience world water or ending up in obelisk land with anomalies that are caused by overheated graphics cards, or an overspend clocked system that doesn't have a cooling fan.

    Check and see if you notice sharp colored or black stripes lightning bolts or lines all in black if so it's the overheat or incorrect hertz refresh rate.

    The higher the setting the smoother graphics transition, the downside is more energy consumption and the heat environment.

    Link
  2. tucker bond

    Hello i have hade this problem with FSX steam for 3 months and still no fix i have loss my patients and i would like to know if this would fix my problem... my whole world is replaced by water meaning everything but the runways at airport are replaced by water

    Link

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