The screenshots below are made in X-Plane with all mesh (also the default) disabled. X-Plane renders water instead, which makes perfectly visible what is actually loaded with a scenery package.
Airport polygon (DrapedOrtho)
This is an example of an airport ‘mesh’ (airport and city), that is made by using a polygon with satellite images:
![](https://www.4xplane.nl/wp-content/uploads/2021/01/Explanation-Mesh-XP-2-1-1024x553.jpg)
Airport mesh
Here you see a ‘real’ airport mesh. Notice that it consists of a whole 1×1 degree tile (the screenshot is more zoomed out than the screenshot above):
![](https://www.4xplane.nl/wp-content/uploads/2021/01/Explanation-Mesh-XP-1-1-1024x612.jpg)