UV Sculpting¶

Reference

Mode: Edit Mode
Tool: Toolbar ‣ Grab,
Tool: Toolbar ‣ Relax,
Tool: Toolbar ‣ Pinch
Panel: Sidebar ‣ Tool ‣ Brushes

The sculpting tools allow you to grab, pinch and smooth UVs, just like for meshes in Sculpt Mode. It can be activated with selecting either the Grab, Relax, or Pinch tool in the Toolbar.

Brushes¶

Brushes

The Data-Block Menu to select a preset brush type or a custom brush.

Grab

The Grab brush moves UVs around.

Relax

The Relax brush makes UVs more evenly distributed. The algorithm relies on space, not stretch minimization, so most probably a minimize stretch will have to be run for optimal results. However it is great to use after stitching islands, or when unwrap produces cluttered results to smooth the distribution of UVs.

Relaxation Method

There are two relax algorithms:

Laplacian, HC

Pinch

The Pinch brush moves UVs toward the brush’s center. The pinch brush can be inverted by pressing Ctrl-LMB.

Brush Settings¶

Radius

This option controls the radius of the brush, measured in pixels. F allows you to change the brush size interactively by dragging the mouse and then LMB. Typing a number then enter while using F allows you to enter the size numerically.

Size Pressure: Brush size can be affected by enabling the pressure sensitivity icon, if you are using a Graphics Tablet.
Use Unified Radius: Use the same brush Radius across all brushes.

Strength

Controls how much each application of the brush affects the UVs. You can change the brush strength interactively by pressing Shift-F in the 3D Viewport and then moving the brush and then LMB. You can enter the size numerically also while in Shift-F sizing.

Use Unified Strength: Use the same brush Strength across all brushes.

Note

All brushes use the Airbrush Stroke Method; they continue to act as long as you keep LMB pressed.

Falloff¶

The Falloff allows you to control the Strength falloff of the brush. See Painting Falloff for more information.

Options¶

Reference

Mode: Edit Mode
Panel: Sidebar ‣ Tool ‣ Options

When UV sculpting is activated, the Sidebar shows the brush tool selection and options.

Lock Borders: Locks the boundary of UV islands from being affected by the brush. This is very useful to preserve the shape of UV islands.
Sculpt All Islands: To edit all islands and not only the island nearest to the brush center when the sculpt stroke was started.
Display Cursor: Hides the sculpt cursor.