The Face Split mode splits the selected face of a subdivision model into five faces.
To split the face of a subdivision model:
Select the subdivision object to edit.
Click the Edit Subdivision tool from the 3D Modeling tool set.
Alternatively, double-click the subdivision primitive object with the Selection tool to select the object and automatically activate the Edit Subdivision tool.
Click Face Split mode from the Tool bar.
As you move the cursor over the cage mesh, its faces are highlighted to indicate they can be modified.
Click on a cage mesh face to split. A preview of the face split displays. Move the cursor to change the size of the new center face.
Click to complete the split.
Initially, the face is split at the location of the click that selects the face. Subsequent cursor movement to adjust the split is constrained to a direction from the face center to the location of the click.
~~~~~~~~~~~~~~~~~~~~~~~~~
