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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

Aligning instanced objects along a normal

You might have noticed that when you want to instance objects onto a curved surface – for example, a torus – the objects you instance will not curve along with the normal of the mesh.

To fix this, you’ll need to make use of two nodes:

  • The Position node: This node will just output the position in space as a squared node connection.
  • The Align Euler to Vector node: This node will convert any input vector value to an aligned vector value. For this exercise, the input of this node is the Position node.

So, let’s start this journey by creating a simple instancing example:

  1. Open a new Blender project and add an Ico Sphere. Don’t forget to add a Geometry Nodes node tree to this Ico Sphere as well. Once you’ve done that, you’re ready to move on to making the node tree.
  2. Let’s start by dropping in an Instance on Points node between Group Input and Group Output.
  3. ...
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