Planet city lights for 3d application

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Hi! I have now created planet surface map (8k), and other files for Blender/3DS Max. I created that map with Fractal Terrains v3. So i need now create city lights for that planet. Any ideas how to make those "cities"? :banghead:
I put here planet surface map so you can see what i have made.

 

[Eggy]

Here are some examples of city lights: https://www.google.be/search?q=city...D-HpE3iWZ-ioSCbDkZC9**SNBEQoftJPBgACl&spf=209

In Blender, when adding a city to the map that you did cut out roughly in advance, set the surface in the material panel to 'emission' so it will light up.