Pioneer dev forum

Link dump for inspiration
http://www.sci.utah.edu/~chengu/street_ ... roject.htm
http://www.citygen.net/
http://voxelstorm.com/devblog/procedura ... dvertcity/
https://pjreddie.com/projects/procedura ... eneration/
http://www.henrydai.net/procedural-city-generator.html
https://github.com/pazdera/libcity & http://p-g-c.blogspot.co.uk/

The classic CityEngine - Pascal Müller
https://en.wikipedia.org/wiki/CityEngine
http://citeseerx.ist.psu.edu/viewdoc/do ... 1&type=pdf

I probably shouldn't have done it as a PR for discussion but here's some terrain flattening code that could be repurposed for all sorts of stuff.
https://github.com/pioneerspacesim/pioneer/pull/4269

https://www.game-cities.com/articles-talks
https://www.gamasutra.com/blogs/Konstan ... ctures.php

Urban structures, handy, simplified examples of how cities are laid out and discussions of what to consider when generating city layouts.

This is about cities only slightly but I think it's amazing.
https://github.com/rlguy/FantasyMapGenerator

There's a great description of the algorithm(s) used to generate the whole map, the terrain, the borders, river cities, naming everything. It's really impressive.

Uses a combination of Python (2.7+) and C++

This Blender add-on called SceneCity might be interesting to study/autopsy as well. (Paid, but it should still be gpl).

Raytracing is pretty cheap nowdays with modern hw, some city examples:
https://www.shadertoy.com/view/MttcWr
https://www.shadertoy.com/view/ll3fz4
https://www.shadertoy.com/view/ltfBDl
https://www.shadertoy.com/view/MllfDX
https://www.shadertoy.com/view/4tlBWH

"An infinite, procedurally generated city, assembled out of blocks using the Wave Function Collapse algorithm."
https://marian42.itch.io/wfc
code:
https://github.com/marian42/wavefunctioncollapse

It might be interesting to use Wave Function Collapse to generate buildings for a city.

Procedural city generation found by Gliese852
https://www.tmwhere.com/city_generation.html