About Modifying Meshes

Modeling mesh objects differs from modeling 3D solids and surfaces in some important ways.

Mesh objects do not have the mass and volume properties of 3D solids. However, they do offer unique capabilities that enable you to design less angular, more rounded models. Mesh objects are easier to mold and reshape than their solid and surface counterparts.


The capabilities described in this section apply only to mesh objects created in AutoCAD-based products, release 2010 and later. They cannot be used with legacy polyface or polygon mesh.

About Mesh Faces

Mesh objects are composed of faces and facets.

Faces are non-overlapping units that—along with their edges and vertices—form the basic editable units of a mesh object. When you move, rotate, and scale individual mesh faces, surrounding faces are stretched and deformed in order to avoid introducing gaps. When gaps occur, you can often close them by smoothing the object or refining individual faces.

About Mesh Facets

Mesh faces have underlying structures, known as facets. The density of the facet grid corresponds to the smoothness of the mesh. As the smoothness level is increased, the density of the underlying facet grid also increases. When you want to confine detailed mesh editing to a smaller area, you can convert facets to editable faces by using refinement.

Unlike faces, facets cannot be individually modified. However, you can make them more visible by modifying the VSLIGHTINGQUALITY system variable.

About Mesh Modeling

You can work with mesh objects in the following ways:

Use Grip Editing with Mesh

You can manipulate the entire mesh model or individual subobjects using the following methods:

Because dense meshes can be difficult to work with, you can change settings to improve the display and behavior of grips.