Modifying the Mesh

From the Shape Sculpt section of the action bar, click Mesh Tools

.

You can also access this command by pressing ALT+SHIFT+T.

Select the surface.

From the Tools Palette, click one of the following:

Option	Description
Add Face	Adds faces (it is selected by default).
Move Vertex	Moves the vertex.
Cut Face	Cuts the face by defining a first point on an edge and then another point on another edge, on the same face or on a different face.
Cut Mesh by plane	Cuts the mesh by the plane.
Merge Vertices	Merges vertices.
Regularization	Regularizes into a face.
Erase	Erases a face, an edge or vertices.
Apply (Enter)	Validates the command.

Click Add Face

.

You can also access this command by pressing Ctrl+Shift+J.

Click an edge to extrude it.
Click an edge and move the pointer to extrude in the direction defined by the manipulation (in the view plane).
Click and use Ctrl to extrude in corner (as for a fill).

The face is created by an extrusion along a direction.

Click Move Vertex

and move the preselected vertex in the face that is the closest to the pointer.

You can also access this command by pressing Ctrl+Shift+M.

The Tools Palette is slightly modified to show the Attenuation

icon.

A plane is previewed by an arc of a circle on the handle.

Note: Pressing Ctrl lets you manipulate the vertex along the edge (the mesh line) that is the closest to the pointer. The direction of the manipulation is previewed by an arrow.

Click Cut Face

and select the starting and ending points.

You can also access this command by pressing Ctrl+Shift+U.

It lets you cut the face from a point on an edge to another point on another edge belonging to the same surface.

Notes:

When a cut is made, the ending point of the first cut is by default the starting point of the second cut. Therefore when you select an ending point that is not on the same face as the starting point, it becomes a new starting point.
Pressing the Ctrl key lets you select the closest vertex:

Click Cut Mesh by Plane

and select the starting and ending points.

Tip: You can also access this command by pressing Ctrl+Shift+W.

It lets you to cut all the faces that have an intersection with the plane (defined by two points and orthogonal to the view):

Note: You can select an existing plane (click

first to be able to select it)

Click Merge Vertices

and select either of the following elements:

A face:

All the vertices of this face are merged on a single vertex. By default, this vertex is positioned in the barycenter of the vertices to be merged.

Note: You can change the position of the vertex by left-clicking and moving the pointer:
An edge:

All the vertices of the edge are merged on a single vertex. By default this vertex is positioned in the middle of the edge.

Note: You can change the position of the vertex by left-clicking and moving the pointer:
A vertex:

Select a second nearby vertex to merge the first vertex with this one:

Note: You can change the position of the merged vertex by left-clicking and moving the pointer once you have selected the first vertex:

Tip: You can also access this command by pressing Ctrl+Shift+V.

Click Regularization

to replace the N side faces by triangles and quadrangles and select the face to regularize.

You can also access this command by pressing Ctrl+Shift+T.

Important: This command is available if you have only one current regularization to perform.

Click Erase

to erase either of the following elements:

A face:
An edge:

Note: You cannot erase a border edge.
A vertex:

Tip: You can also access this command by pressing Ctrl+Shift+D.

Click Apply (Enter)

to validate the command.

When a face is made of more than four edges, it is automatically built from a face made of three or four edges only. These internal edges are displayed as dashed lines:

These dashed lines become continuous and can be manipulated once you validate the command.