Here's how to make a map that appears to illuminate an area based on what can be seen from that vantage point. It uses the Geodesic Viewshed tool in ArcGIS Pro, which is part of Spatial Analyst or 3D analyst I think.
Here's the "Global Background" layer I use, which is just a big rectangle covering earth: https://esriismy.sharepoint.com/:u:/...

Check out some other social channels where I share howto's and updates on random map adventures:

http://adventuresinmapping.com
https://www.esri.com/arcgisblog/auth...
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