Make a face invisible (Maya 2011 에 새로 들어간 new feature)

Make a face invisible

Rather than actually creating a hole in your polygon, you can also make a face invisible. This is useful when you need a hole to appear in the geometry, yet want to maintain the overall shape when using subdivision operations (such as Smooth).

To assign faces as invisible

1.Select the faces you want to make invisible.

2.Select Edit Mesh > Assign Invisible Faces 옵션박스
The Assign Invisible Faces Options window appears.

3.Select Assign.

4.Click Create.

Depending on your settings, the face may or may not disappear. If it doesn’t disappear, select Display > Polygons > Invisible Faces.

출처 : 매뉴얼