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To see the terrain below your [[aircraft]], you have to install the respective [[scenery]]. This can happen by downloading certain bits of scenery before flying as described in the article [[Howto: Install scenery|installing scenery]]. | To see the terrain below your [[aircraft]], you have to install the respective [[scenery]]. This can happen by downloading certain bits of scenery before flying as described in the article [[Howto: Install scenery|installing scenery]]. | ||
Alternatively, if you have a steady and reasonably fast internet connection, you can use '''TerraSync'''. It is a utility that automatically downloads the newest version of the needed [[FlightGear]] scenery while the simulator is running. TerraSync runs in the background | Alternatively, if you have a steady and reasonably fast internet connection, you can use '''TerraSync'''. It is a utility that automatically downloads the newest version of the needed [[FlightGear]] scenery while the simulator is running. TerraSync runs in the background (optionally as a separate process), monitors your position, and downloads (or updates) the latest scenery from the master scenery server "just in time". | ||
The master repository for TerraSync, i.e. the online resource from which TerraSync downloads its files, is synchronized with the [http://scenemodels.flightgear.org/ FlightGear Scenery Database] once a day. So when using TerraSync, you will always have | The master repository for TerraSync, i.e. the online resource from which TerraSync downloads its files, is synchronized with the [http://scenemodels.flightgear.org/ FlightGear Scenery Database] once a day. So when using TerraSync, you will always have | ||
# the latest [[File Formats#.2A.stg|.stg-files]], which tell FlightGear where to place an object | # the latest [[File Formats#.2A.stg|.stg-files]], which tell FlightGear where to place an object | ||
# the latest '''static''' models for objects. (Static models define unique objects that exist in one place only, such as famous buildings or landmarks.) | # the latest '''static''' models for objects. (Static models define unique objects that exist in one place only, such as famous buildings or landmarks.) | ||
# the latest '''shared''' models for objects. (Generic models used more than once in different places, each can represent many different objects, like generic houses or ships) | |||
== Enabling TerraSync == | |||
== | |||
=== FlightGear 2.99, 3.0 and later === | === FlightGear 2.99, 3.0 and later === | ||
Currently in Git, and as of the upcoming FlightGear 3.0 release, TerraSync has changed significantly. By default, TerraSync now downloads to a folder in the [[$FG_HOME]] directory when enabled with <code>--enable-terrasync</code> or through the checkbox on the last page of FGRun. Optionally a TerraSync directory can be assigned with <code>--terrasync-dir=</code> or through the <tt>Advanced > General</tt> dialog of FGRun. TerraSync will then download to that directory. | Currently in Git, and as of the upcoming FlightGear 3.0 release, TerraSync has changed significantly. By default, TerraSync now downloads to a folder in the [[$FG_HOME]] directory when enabled with <code>--enable-terrasync</code> or through the checkbox on the last page of FGRun. Optionally a TerraSync directory can be assigned with <code>--terrasync-dir=</code> or through the <tt>Advanced > General</tt> dialog of FGRun. TerraSync will then download to that directory. No other configuration is needed. | ||
=== FlightGear 2.4 up to and including 2.12 === | === FlightGear 2.4 up to and including 2.12 === |
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