UV Mapping: texturing a 3d object

Summary

Published: Jan 21 2024 by manavortex Last documented update: Jan 21 2024 by manavortex

This page contains the theory of how to connect meshes (3d objects) with textures (which are 2d after all)

Wait, this isn't what I want!

• For a hands-on guide to UV mapping, check Adding decals -> Step 5: UV projection

• For import/export help, check Textures: Importing, editing, exporting

What is "UV mapping" and can I eat it?

This is the technical term for the process of mapping a flat texture on your three-dimensional object. The most hands-on example for this is Christmas chocolate:

Regardless of that, you can not eat it.

Where can I see them?

An object's UV maps are visible in the Data tab:

How do I edit the UV mapping?

Open the UV editing perspective, select a mesh, and switch to Edit Mode. If you select vertices in the viewport on the right, you can see their UV islands in the UV editor on the left:

You change the mapping by editing those UV islands. For a more hands-on guide of this, refer to Adding decals -> Step 5: UV projection

How do I transfer UV maps?

To transfer UV maps between two objects, they need to be topologically identical (they must have the same number of vertices, faces and edges). The shape can change.

You can find the UV transfer menu under Object -> Data Transfer.

Recommended AddOns

MioUV (Blender 4.2, free)

If you work with UV mappings, you should definitely check out MioUV. It automates a bunch of things that used to take the better part of an afternoon: