So here's a neat trick I would really like to be able to take advantage of in my Venice map. Take a look at the first part of this  video by SimCity, then if you want to learn how it's done, check the 2nd link, where the scientist who invented the idea explains how to do it, and links you to his paper on the top to show you how to do it.  [forgot how to embed video in here lmao] hint please