Texturing & materials · Beginner

Smart UV project

Blender’s automatic unwrap that cuts a model into flat pieces by angle, no seams needed

Also called Smart UV Project

What is Smart UV project in Blender?

Smart UV project is an automatic Blender unwrap that cuts a model into flat pieces wherever the surface bends past an angle you set, with no seams needed. It is fast and works on almost anything, though it makes many small islands with cuts in visible places.

Think of it like this

Like cutting a cardboard box apart at every fold: quick and flat, though you end up with more pieces than a careful unfold would give.

Where it fits in a 3D project

  1. Create
  2. Surface
  3. Rig
  4. Animate
  5. Render
  6. Export

Surface: Giving the shape its color and material: UVs, textures and shaders.

3D modelUnwrapFlat UV layoutSame face
Unwrapping lays each face of the model flat, so a 2D texture can wrap back on.

How Smart UV project works

  1. 01In Edit Mode, select all faces with A.
  2. 02Press U and choose Smart UV Project.
  3. 03Set Angle Limit: lower values make more, flatter islands; higher values make fewer, larger ones.
  4. 04Add Island Margin so pieces do not bleed into each other when baked.

Smart UV project vs manual unwrapping

PropertySmart UV projectManual unwrapping
SeamsChosen for you by angleMarked by you
SpeedSecondsMinutes to hours
IslandsMany, small, often scatteredFew, large, placed with care
Best forHard-surface props, baking, quick testsCharacters and close-up assets

Use Smart UV project for quick props and baking where cuts will not show; unwrap by hand when seams must hide and textures will be painted.

Where Smart UV project is used

  • Quick UVs for hard-surface props and scenery
  • Preparing generated or scanned models for baking
  • Getting a usable layout before a texture test

Beginner tip

Apply scale before running it, or islands from different parts come out at different sizes for the same texture. Ctrl+A > Scale in Object Mode fixes it.

Terms related to Smart UV project

Smart UV project FAQ

Where is Smart UV project in Blender?
In Edit Mode, press U to open the UV menu and choose Smart UV Project. The UV menu in the viewport header has it too. Select all faces first, or it only unwraps the selection.
Should I use Smart UV project or unwrap?
Use Smart UV project when speed matters and seams can show, like background props or baking. Use Unwrap with your own seams for characters, faces and anything a viewer looks at closely.
What are the best Smart UV project settings?
Start with the defaults. Lower Angle Limit if pieces look stretched, and raise it if there are too many tiny islands. Set Island Margin above zero for any model you plan to bake.

Updated October 29, 2026 · Browse all 3D terms