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Sweeping with VIZ 2006
The
new sweep modifier is a time-saving approach to many lofting procedures.
With this simple interface, you can easily create crown molding,
flanges, or other simple loft objects.
To demonstrate, draw a rectangle in a viewport and apply the sweep
modifier to it. It automatically applies a built-in shape. From the
dropdown list, you can change the shape from Angle to any one of the
other shapes listed. And you can further adjust the parameters making up
each part of the shape.
To access a custom shape, you can pick a shape in your scene, or apply a
shape contained in a .max file of all your shapes. For example, you can
have one .max file containing all your molding shapes (with each shape
named appropriately) or flange shapes or any other shape you may wish to
utilize.
Here’s a short, simple tutorial:
1. Create a shape outline similar to the shape below.

(To
create the shape, I created a rectangle and refined it with a
combination of Bezier and Bezier corner vertices.) Rename the shape to
baseboard molding and save the file to “molding_tut.max”.
2. Reset VIZ. Create a box (keep in mind the scale of your shape and
it’s purpose). Apply a normal modifier to this box (to enable you to
view inside the box. (You may also want to place a camera in your
scene.) Then in the top viewport, create a rectangle that is the
same size as the base of your box. An easy way to create both the box
and rectangle is to use the keyboard create option and put both objects
on the 0,0,0 planes. (See image at right.)
3. With your rectangle selected, apply the sweep modifier.
This is what it looks like
immediately after you apply the sweep modifier. It applies the first of
the built-in shapes to your path. Click on “use customized shape” and
select “merge from file.” A dialogue box opens and you can then browse
to the file “molding.tut.max”. Select that file and select baseboard
molding at the next prompt.
4. Depending on how you created your shape, you
will probably need to adjust the parameters of the shape along the path
by adjusting the sweep parameters (see image below for details). In this case, click on the option for “mirror on xz plane.” And then choose the bottom right pivot for pivot alignment.
(This is a grid that helps you align the section to the path. When none
of the Pivot Alignment buttons is depressed the pivot point of the
section is used as the alignment point. Further, you can use the “align
pivot” button to manually adjust the alignment.) Click on the image
below for a larger view of the sweep parameters mentioned above.

You should have something similar to this image below when you’re
finished adding materials.

Here are the max files I used for this example.
molding.max (contains the shape)
room_molding_tut.max
(finished scene)
If you have any questions, drop me a line!
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