Procedural 3D Modeling Using Geometry Nodes in Blender: Discover the node-based workflow for physics-based and procedural modeling using Blender 4.2

by Siemen Lens

Overview

Learn the various facets of Geometry Nodes through simple exercises that progress to more challenging projects with this easy-to-follow illustrated guide

Key Features

• Develop creative mathematical thinking to work on procedural projects
• Learn how to calculate and create your very own math-based physics simulations
• Find out how you can utilize Geometry Nodes to scatter objects randomly in a scene
• Purchase of the print or Kindle book includes a free PDF eBook

Book Description

Geometry Nodes are a set of tools that enable you to manipulate and generate 3D geometry in a node-based workflow. In this book, you’ll learn to use the basic and intermediate features of Geometry Nodes that are essential for creating complex, physics-based simulations and animations in Blender. After an introduction to the Geometry Node system and its inner working, you’ll learn about different node inputs and outputs, along with the basic nodes necessary for your Geometry Nodes projects. You’ll apply your newfound knowledge through exercises that involve modifying curves, meshes, and more, as well as work on a range of interesting projects including creating a procedural plant where you’ll find out how to use the nodes to generate the intricate details and variations of a plant in a procedural manner. You’ll also create a procedural working clock which’ll challenge your mathematics and geometry skills. The concluding chapters take you through a brand new addition to Geometry Nodes called the simulation zone, where you’ll create various physics simulations by using the Geometry Node editor. By the end of this book, you’ll be able to tackle minor to major Geometry Node issues with confidence and create complicated geometry node trees and complex physics simulations tailored to your needs.

What you will learn

• Discover the different node inputs and outputs that Geometry Nodes have to offer
• Get to grips with the flow of the Geometry Node system
• Work with geometry node use cases through fun projects that advance with each chapter
• Link geometry and material nodes editors using named attributes
• Explore the flow of the simulation zone in Blender 4.2
• Create both simple and complex physics simulations mathematically
• Understand mathematical terms such as velocity, forces, collisions, and vectors
• Work with variables in your geometry node-based workflow

Who this book is for

If you are a computer graphics (CG) artist or follow modeling careers like those of environment artists or are a CG generalist looking to learn a node-based modeling workflow using Geometry Nodes in Blender, this book is for you. Knowledge of Blender fundamentals is required; for example, knowing the specific workflow of material nodes and being able to apply this knowledge to your projects, as well as a basic understanding of physics.

Product Details

ISBN-13:	9781836203018
Publisher:	Packt Publishing
Publication date:	10/31/2025
Product dimensions:	75.00(w) x 92.50(h) x (d)

About the Author

Siemen Lens is a CG Artist who excels at photorealism. Experiencing boredom during the COVID-19 lockdown of 2020, he began learning Blender. He studies VFX at Howest University of Applied Sciences. His specialty is to create abstract yet photorealistic renders using Geometry Nodes, Physics, Texturing, and various other techniques in Blender. He also uses other software like DaVinci Resolve, Maya, Illustrator and Photoshop. Siemen has worked as a product render designer in a Furniture company and worked at PartydoosMedia, a Dutch digital graphic design agency. His goal is to create visually convincing CG Art that is pleasing to the eye. For 3 years, he has familiarized himself with Blender. Today, he will familiarize you with Geometry Nodes.

Table of Contents

Table of Contents

1. An Introduction to Geometry Nodes
2. Understanding the Functionality of Basic Nodes
3. Must-Have Add-Ons for Building Node Trees
4. Making Use of Node Primitives
5. Distributing Instances onto a Mesh
6. Working with the Spreadsheet in Blender
7. Creating and Modifying Text in the Geometry Node Editor
8. Editing Curves with Nodes
9. Manipulating a Mesh Using Geometry Nodes
10. Creating a Procedural Plant Generator
11. Creating a Procedural Brick Wall
12. Constructing a Procedural LED Panel
13. Tips and Tricks for the Geometry Node Editor
14. Troubleshooting the Most Common Problems in Geometry Nodes
15. Introduction to Simulation Nodes
16. Experimenting with Points in the Simulation Zone
17. Making a Procedural Fountain Using Points
18. Creating a Complete Particle Physics Simulation
19. Simulating Bugs Crawling on Objects
20. Shrinkwrapping Simulation
21. Common issues beginners experience with Simulation Nodes