How do you create a procedurally city?
We developed an application for procedurally generating the commercial districts of cities.
- We use Voronoi diagrams with randomly placed control points to generate the main roads and city districts.
- These districts are further subdivided using regularly spaced control points to create city blocks and lots.
How is procedural generation coded?
Procedural generation only means that code is used to generate the data instead of it being hand made. For example if you want to generate a forest with various trees you are not going to design each tree by hand, thus coding is more efficient to generate the variations.
How to visualize the behaviour of procedural City generation?
The behaviour of the algorithm can be visualised by turning on the debug view in the demonstration above. The highlighted path shows the order that segments are placed. Segments can be seen branching out from the main highways, and merging with parallel areas of growth as dictated by the local constraints.
How is GlobalGoals implemented in procedural City generation?
The implementation of globalGoals is entirely up to the developer: I made the decision for roads to simply tend towards areas of high population density. The original authors added further constraints to create several distinctive categories of road patterns.
How is pathfinding used in procedural City generation?
Pathfinding The A* algorithm is used for pathfinding. During the generation process, each road segment is associated with those segments which connect directly to either end of it, allowing the network of segments to be traversed.
What is purpose of Simplex noise in procedural City generation?
Three layers of simplex noise were combined to define the population density map. The resulting map has two purposes. One is to guide the forward extension of existing road segments; if a random deviation will reach a higher population than extending the original segment straight ahead, the extension will match that deviation.