4. Adding the Subdivision Modifier
Step 1
We have now completed the nose and upper lip's outline. You can check the model out by going into Object Mode.
Step 2
With the mesh selected, click the Modifier button on the tool panel bar and then on the Add Modifier button. Select the Subdivision Surface command from the list.
Step 3
After applying the Subdivision Surface, increase the View value to 2. You will see the increments of smoothness being applied to the mesh in the viewport.
Step 4
The higher the Subdivision view value is, the smoother the mesh will be.
Step 5
Once you have checked the smoothness of the mesh details, set the Subdivisions View value to 0 again.