Geometry Nodes and UV Mapping in Blender

In this video, I demonstrate creating a procedural road generator using Blender's geometry nodes, covering the setup of the curve, UV mapping, and texture alignment. Highlights include creating an external control for road width, a diagnostic tool for curve length, and offering a free tool download on Gumroad for enhancing your Blender toolkit.

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Hi there! 👋 I'm Mike, and I'm relatively new to YouTube. I've been teaching Blender professionally for over 10 years, and I'm excited to share my knowledge with the community here. On this channel, you'll find full guides, courses, and tools to help guide, reassure, and educate you on your Blender journey. Let's create something amazing together!

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PS: Some of the links in this description are affiliate links that I get a kickback from 😜

In this video, I dive deep into the process of creating a procedural road generator using Blender's geometry nodes. It's been quite a journey, and I’ve even added a new tool to my asset pack, which you can download for free from Gumroad. I start by setting up a basic curve, then jump into geometry nodes to create a road mesh from that curve. This involves setting up the workspace for optimal use and ensuring the geometry aligns correctly.

I demonstrate how to generate and manipulate UV coordinates for our road texture. By capturing and storing attributes along the curve, I create a UV map that properly aligns with the generated geometry. This includes setting up parameters, resampling the curve, and applying a material to see the UV map in action.

As we progress, I tackle challenges such as stretching and scaling the texture uniformly. This requires some mathematical adjustments and careful alignment of the curve. I also show how to use the Shader Editor to fine-tune textures and ensure they map correctly across the road mesh.

One highlight is creating an external control for the road width, making the tool more versatile and user-friendly. This allows for easy adjustments without diving back into the geometry nodes each time.

Towards the end, I introduce a diagnostic tool I developed, which displays curve length information on-screen, aiding in precise adjustments and troubleshooting. This tool is also available for download and can be added to your Blender asset library.

If you're interested in procedural generation, UV mapping, or enhancing your Blender toolkit, this video is packed with insights and practical steps. Have you tried creating procedural textures in Blender? What challenges did you face?

[Number_Cruncher]

Great tutorial, now I only have to repeat this for my uv-spheres. Do you have a tutorial, where you explain the creation of your text-tool?

[scyada]

Thanks for saving me I finally understood how it works

[hectorescobar]

Great to se and actual UV Geometry nodes tutorial. I wonder how we could incorporate Trimsheets or map into trimsheets with geo nodes

[mind_of_a_darkhorse]

Great tutorial with excellent explanations! You do great work! Thanks for sharing!

[hectorescobar]

Btw at 4:50 If you connect the factor to the profile and the length to the curve, you will actually get evently mapped UVs

[MuhammadAdil-veup]

Allah Khush Rakha Ap Ko OR God bless you

[_casg]

BRO please help me!
I’m in a deeppp ahhhh rabbit hole.
So I procedural unwrapped a geometry nodes tree.
And you know trees,
It’s like instances on instances on instances, but the last instance is the leaves.
The leaves don’t need to be procedurally unwrapped but because I did this process of unwrapping automatically on the whole tree with all its instances it’s affecting the leaves too! And unwrapping them also!
I realize that when I reorganize the geometry nodes on the modefiers tap I and put my Uv geometry nodes on top, the leaf material appear!
But the whole tree looses its procedural texture and becomes white.
Idk what to do 😓
I can’t find anyone doing tutorials on handling multiple uv materials with geometry nodes uv unwrapping