Clean Up

These operators can automatically clean up certain types of messy geometry.

Delete Loose

Reference

Mode:

Edit Mode

Menu:

Mesh ‣ Clean up ‣ Delete Loose

Deletes the selected vertices, edges, and optionally faces that aren’t connected to anything.

Decimate Geometry

Reference

Mode:

Edit Mode

Menu:

Mesh ‣ Clean up ‣ Decimate Geometry

Reduces the face count of the selected geometry while minimizing shape changes.

Ratio

The target triangle count ratio. For example, enter 0.4 to keep collapsing edges until the triangle count is 40% of the original.

Vertex Group

Use the active vertex group when choosing which edges to collapse. The higher the vertex weights for an edge, the more likely it is to be chosen, even taking priority over “better” (shorter) candidates.

Weight

Factor by which to multiply the vertex weights.

Invert

Inverts the vertex weights, making edges with lower weights get collapsed first.

Symmetry

Maintain symmetry on either the X, Y, or Z axis.

See also

The Decimate Modifier in Collapse mode performs the same operation non-destructively.

Degenerate Dissolve

Reference

Mode:

Edit Mode

Menu:

Mesh ‣ Clean up ‣ Degenerate Dissolve

Collapses any selected edges that are shorter than a certain length. This also results in the removal of small faces.

If two vertices are near to each other but are not connected by an edge, they will not be merged; you can use Merge by Distance for that.

Merge Distance

Edges shorter than this length will be collapsed.

Limited Dissolve

Reference

Mode:

Edit Mode

Menu:

Mesh ‣ Clean up ‣ Limited Dissolve

See Limited Dissolve.

Make Planar Faces

Reference

Mode:

Edit Mode

Menu:

Mesh ‣ Clean up ‣ Make Planar Faces

Flattens the selected faces.

Factor

The flattening strength for each iteration. Note that even a value of 1 may not be enough to get faces perfectly flat; you can increase the Iterations in that case.

Iterations

Number of times to repeat the operation.

Split Non-Planar Faces

Reference

Mode:

Edit Mode

Menu:

Mesh ‣ Clean up ‣ Split Non-Planar Faces

Splits any selected faces that are bent beyond a given limit.

Max Angle

Faces that are bent by more than this angle will be split.

Hint

You can use Rotate Edge if you’d rather have certain newly created edges point in a different direction.

Original mesh.

Result of Split Non-Planar Faces.

Split Concave Faces

Reference

Mode:

Edit Mode

Menu:

Mesh ‣ Clean up ‣ Split Concave Faces

Splits any selected concave faces so that only convex ones remain.

Original mesh.

Result of Split Concave Faces.

Merge by Distance

Reference

Mode:

Edit Mode

Menu:

Mesh ‣ Clean up ‣ Merge by Distance

Merges the selected vertices that are closer to each other than a certain distance.

Merge Distance

Vertices closer than this distance will be merged.

Unselected

Allow merging selected vertices with unselected ones.

Sharp Edges

Mark edges as sharp if they have split custom normals.

See also

The Weld Modifier performs this operation non-destructively.

Fill Holes

Reference

Mode:

Edit Mode

Menu:

Mesh ‣ Clean up ‣ Fill Holes

Fills each hole in the selected geometry with a face.

Sides

The maximum number of sides: if a hole has more edges than this number, it will not be filled. You can set this limit to 0 to fill all holes.

See also

If you have a large hole with many edges, Grid Fill may be a better option.