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Ortho4XP builds the base mesh and ground texture using elevation data and orthophoto imagery from external providers that the user can choose. By default, elevation data is provided by Viewfinderspanorama and Bing orthophotos.

The X-Plane scenery system is divided up into thousands of 1x1 “tiles”. Reviewing the “Anatomy of the X-Plane Scenery System” in the X-Plane WorldEditor Manual can be helpful to understand the interaction between Ortho4XP and X-Plane.

For new users, the recommended order for reading this guide to quickly get setup and running is:

1. Installation
2. Basic Setup
3. Creating Tiles