
1. Polygon modeling
2. Smooth
3. Select a polygon mesh
Mesh > Smooth
4. Polygon components are Vertex, Face, Edge, and UV.
UV is texture coordinates.Subdiv Proxy.
5. Select a polygon mesh
Proxy > Subdiv Proxy
A smoothed mesh are generated in the proxy mesh.
6. When you edit
(transform, rotate, scale the vertices, edges, and extrude, cut faces etc)
the outside polygon (proxy mesh),
the inside polygon (smooth mesh) is similarly edited like being smooth.

1. Select the polygon object.
Edit Mesh > Append to Polygon Tool
and click the edge.
2. You click one by one the edge that you want to add the face.
3. The face is pushed out by operating the manipulator.
When you select two or more faces and do Extrude,
if Edit Mesh > Keep Faces Together is on,
then faces are pushed out together as the above.
4. If Edit Mesh > Keep Faces Together is off,
then faces are individually pushed out as the above.




