9

CrossSection Modifier 625
5. On the main toolbar, click Select And
Move, then move the objects in the viewport to
order them a long the Z axis with the NGons at
the bottom and the lines ab ove the NGons.
6. Select the b ottom NGon.
7. OntheModifypanel,chooseEditSpline
from the Modifier List.
8. In the Geometry rollout, click Attach.
9. Select the remaining NGon and lines in an
ascending order, as numbered in the image.
Note: The order of selection is important. The
CrossSection mo difier uses the selection order
to define the skin.
Example continued: Lining up the vertices:
1.
On the Modify panel, choose the Vertex
sub-object level in t he stack display.
Lining up the first vertex of each spline is
important to prevent the sur face from twisti ng.
2. Use Ct rl +click to select the rightmost vertex
of each line and the bottommost vertex of each
NGon.
3. On the Geometr y rollout, click Make First.
Aligning the first vertex is important. This is
where the seam forks, going from a closed to an
open spline.
Example continued: Using CrossSection and Sur face
to " ski n" the sha pes:
1.
On the Modif y p anel, choose
CrossSection from the Modifier List.
The CrossSection modifier connects the splines
at the vertices.
2. On the Modifiers List, choose Surface.
The Surface modifier generates a patch surface
based on the splines.
3. In the modifier stack display, choose the
CrossSection modifier.