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Procedural 3D Modeling Using Geometry Nodes in Blender

You're reading from   Procedural 3D Modeling Using Geometry Nodes in Blender Discover the professional usage of geometry nodes and develop a creative approach to a node-based workflow

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Product type Paperback
Published in Mar 2023
Publisher Packt
ISBN-13 9781804612552
Length 282 pages
Edition 1st Edition
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Siemen Lens Siemen Lens
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Table of Contents (23) Chapters Close

Preface 1. Part 1 – Familiarizing Yourself with the Node System
2. Chapter 1: An Introduction to Geometry Nodes FREE CHAPTER 3. Chapter 2: Understanding the Functionality of Basic Nodes 4. Chapter 3: Must-Have Add-ons for Building Node Trees 5. Part 2 – Creating a Mesh in the Geometry Node System
6. Chapter 4: Making Use of Node Primitives 7. Chapter 5: Distributing Instances onto a Mesh 8. Chapter 6: Working with the Spreadsheet in Blender 9. Chapter 7: Creating and Modifying Text in the Geometry Node Editor 10. Part 3 – Modifying Meshes and Curves in the Geometry Node System
11. Chapter 8: Editing Curves with Nodes 12. Chapter 9: Manipulating a Mesh Using Geometry Nodes 13. Part 4 – Hands-On Projects Involving Advanced Workflow Techniques
14. Chapter 10: Creating a Procedural Plant Generator 15. Chapter 11: Creating a Procedural Spiderweb Generator 16. Chapter 12: Constructing a Procedural LED Panel 17. Part 5 – Best Practices to Improve Your Workflow
18. Chapter 13: Tips and Tricks for the Geometry Node Editor 19. Chapter 14: Troubleshooting the Most Common Problems in Geometry Nodes 20. Index 21. Other Books You May Enjoy Appendix: Important Shortcuts

Randomizing instances

Now that you know how to distribute points onto your mesh and place instances on those points, it’s time to learn how to randomize these instances. Randomization is important because the human eye is very good at noticing patterns in geometry. To fix this, we have to randomize factors in our projects. For this, we will be using the Random Value node.

Figure 5.10: Random Value node

Figure 5.10: Random Value node

This node will output various random values for other flows of the node tree, thanks to the multivalued field node connection.

The Random Value node can output various data types. When clicking on the selection box at the top of the node, you can see a list of all the different data types this node can generate.

Figure 5.11: Different data types

Figure 5.11: Different data types

For this part of the tutorial, we will be randomizing the rotation of the cubes.

Let’s choose the Vector data type from the list since we want to have a different...

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