9.5.2

596 • CHAPTER 10
STRUCTURE MENU • 597
Smooth Shift
Smooth Shift is very similar to the Extrude tool. With Smooth Shift, however, the connected surfaces
are extruded coherently. The direction in which the surfaces are extruded with Smooth Shift is
determined not only by the normals of the selected surfaces, but also by the normals of the adjacent
(unselected) surfaces. This makes it quick and easy to extrude lumps.
Drag the mouse left or right within the viewport to apply Smooth Shift interactively or, for as long
as the tool is active, adjust the parameters in the Attribute manager. Smooth Shift can be applied to
surfaces only. If no surfaces are selected, then all surfaces are considered.
Attribute manager settings
Maximum Angle
This is the maximum angle at which surfaces may lie to each other to ensure that no additional surfaces
are created with Smooth Shift.
Quadrangles (and, in some cases, triangles also) are inserted in these critical places where the angle is
exceeded, ensuring that the surfaces are not torn apart. These triangles should be avoided if you want
to use an object for HyperNURBS, otherwise the HyperNURBS surface may display uneven shading
properties.
The marked surfaces are those which had to be additionally built and inserted because the Maximum
Angle was exceeded.
Offset, Var
Here you can change the offset of the extruded surfaces. You can also specify a Var value to vary the
offset per smooth shift extrusion group.