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Creating L Systems in Blender Geometry Nodes


L Systems are a mathematical 'grammar' to define fractal shapes. They're great for generating convincing natural shapes like trees and plants. They work by generating a string of characters and defining operations to replace them with more complex strings. Thanks to Blender 4.0's new repeat zones, we can now simulate this in Geometry nodes!

About the Author

Avatar image for Bart Veldhuizen
Bart Veldhuizen

I have a LONG history with Blender - I wrote some of the earliest Blender tutorials, worked for Not a Number and helped run the crowdfunding campaign that open sourced Blender (the first one on the internet!). I founded BlenderNation in 2006 and have been editing it every single day since then ;-) I also run the Blender Artists forum and I'm Head of Community at Sketchfab.

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