NOTE: I use Blender 3.0 Alpha in this video. Learn to create a building generator using Geometry Nodes in this three part tutorial! In Part III, you will learn how to add a rooftop element, reuse the existing math, and complete the geometry node modifier. As an optional extra, I plug in some existing assets to see how they perform using the new generator. You can purchase these from my Gumroad page: Download the working files from this free link: