# Append to mesh
## 
Append to mesh
The 3DFace command creates mesh or SubD faces that can be standalone or added to an existing mesh or SubD.
A mesh face (left) and a SubD face (right)
* When meshes or SubDs are pre-selected, the 3DFace command starts in the [Append](https://docs.mcneel.com/rhino/8/help/en-us/commands/3dface.htm#Append) mode.
### Command-line options
**Output**
**Mesh**
Creates mesh faces.
**SubD**
Creates SubD faces.
**Interpolated (Yes/No)**
| 
| |
| ------------------------------------------------------------------------------------------------------------------------------------ | -- |
| Yes | No |
Conceptually, this is the difference between what the [Curve](https://docs.mcneel.com/rhino/8/help/en-us/commands/curve.htm) and [InterpCrv](https://docs.mcneel.com/rhino/8/help/en-us/commands/interpcrv.htm) commands do. The Curve command turns input points into the curve's control points. The InterpCrv command creates a curve to pass the input points.
**Append**
Selects an existing mesh or SubD to which the new faces will be added.
* During appending new faces, press ESC to cancel the current face creation. Press ESC one more time to cancel the command.
**PolygonType (Triangle/Quad/Ngon)**
Specifies to create triangle, quad, or n-gon faces.
* When PolygonType=Ngon, picking not enough points adds a triangle or quad face.
**FromEdge**
**Yes**
Each new face is started by selecting an existing mesh or SubD boundary edge.
**Chain (Yes/No)**
Create faces along an edge chain. The edge chain can be from an existing mesh or the current creating mesh.
This option is only available when PolygonType= Quad
**Example**
1. Click the Append option to select a mesh or SubD.
2. Set PolygonType=Quad, FromEdge=Yes, Chain=Yes, and Mode=MultipleFaces.
3. Select a boundary edge of the object.
4. Pick two points to form the first face.
5. Pick one point to form the next face and repeat.
6. Right-click to start a new edge chain.
**FromEdgeReset**
**Yes**
Resets FromEdge to No in the next 3DFace command session.
**No**
Remembers the setting of FromEdge for the next 3DFace command session.
**No**
Each new face is created by picking points.
**InPlane (Yes/No)**
Set Yes to define a plane with the first three points and constrain the rest points of the current face on that plane. This option only takes effect when PolygonType=Quad/Ngon.
**WeldAngle (Only for Output=Mesh)**
The welding tolerance for mesh edges in degrees. Welding applies to edges around new faces. The default angle is 180 degrees that welds all edges.
**Mode (SingleFace/MultipleFaces)**
Specifies to create only one or more faces in a command session.
**Undo**
Removes the previous pick.