Lattice Modifier: reshape a mesh with a control lattice

Lattice Modifier reshapes a mesh smoothly through a control lattice around it. You drag the points of the lattice, and the mesh inside follows. Use it for broad changes of form: stretch or taper a part, bend it, change its proportions. For local edits under the cursor, use the Deform mode of Brush instead.

You find the tool in Mesh Edit › Lattice Modifier.

Reshape a Mesh Step by Step

1. In the Scene tree, select one mesh. To deform only part of it, select those triangles first (see Deform Only a Selected Part).

2. Go to Mesh Edit › Lattice Modifier. A box with control points appears around the mesh. By default the lattice has 2 points along each axis, that is 8 corner points.

   

3. For finer control, set X res, Y res and Z res (from 2 to 4 points per axis) and click Reset/Start to rebuild the lattice.

4. Point at a control point: it turns red. Drag it with the left mouse button. The mesh follows the lattice in real time.

   

5. Repeat with other points until the shape is right.

6. Close the panel. There is no Apply button: the mesh keeps its new shape.

To take back a drag, press Ctrl+Z (Cmd+Z on macOS). Each drag is one undo step, and you can still undo the drags after you close the panel.

Panel Controls

Control	What it does	Default
X res, Y res, Z res	Number of lattice points along each axis, from 2 to 4. More points give more local control. Takes effect when you click Reset/Start.	2
Reset/Start	Rebuilds the lattice with the current resolution around the current shape of the mesh. The deformation you already made stays in the mesh.
Ignore Occlusion	Lets you pick and drag lattice points that are hidden behind the mesh or other objects in the current view.	Off

Deform Only a Selected Part

If triangles are selected on the mesh when you open the tool, only the vertices of the selected triangles move; the rest of the mesh stays in place. Select the area with the Select tools, for example Select Primitives, before you open Lattice Modifier. To change the area later, close the tool, change the selection and open it again.

Tips

• Start with the default 2 × 2 × 2 lattice: moving one corner already tapers or skews the whole mesh. Add points only when you need to bend or bulge a region.
• The tool moves vertices; it does not add triangles. After a strong stretch, triangles become long and thin. Check them with the triangle edges shown (press L), then use Subdivide or Remesh if needed.