3.1.2 The 3D Synthetic Vision

The 3D Synthetic Vision provides an indication of the aircraft's attitude as well as the area close to the aircraft such as terrain, nearby Chart Elements, Runways,... and the current Procedure.
The current Procedure is shown as a tunnel in the sky. Flying through that tunnel leads to the destination (in a way depending in the selected procedure (Direct, Approach, Holding,...).
Render Options

Since Horizon 2.5 there's also an AGL (Altitude Above Ground Level) indication below the AMSL (Altitude Above Mean Sea Level) indication.
You need to install "Terrain" data packages to get terrain visualizations and AGL indications. For navigation and obstacle dependent indications regular "Data" packages need to be installed.
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