9

840 Chapter 8: Modifiers
Manual—
Updates only when Update Now is
pressed. Subdivision can be interr upted using
the
Esc key. If the subdivision is interrupted the
Update mo de is changed to Manual.
Update Now—Updates the mesh when Manual is
turned on.
Display Subdivi sion—Controls w hether all of the
triangles are visible, or only the edges where face
properties are changing. Allows you to reduce the
visibletrianglesinthesceneifitappearscluttered.
Substitute M odifier
Make a selection. > Modify panel > Modifier List >
Object-Space Modifiers > Substitute
Typically, designers use two-dimensional shapes
to represent objects, such as fur niture, in their
AutoCAD designs. However, w hen they link
their DWG files (page 3–931) into 3ds Max for
visualization, they want to see how the objects wil l
look in their design.
Top view of 2D symbols used to represent 3D objects
The Substitute modifier lets you quickly replace
one or more objects with another in the viewports
or at render time. The substitute object can
be instanced from the current scene or can be
referenced from an external file.
The Substitute modifier replaces the 2D objec ts with their 3D
counterparts.
To get rid of the substitute object, simply remove
the modifier from t he stack. This frees up the
memory required to store it.
Tip: When you file link to a DWG file, the file
is imported to 3ds Max as groups of VIZBlocks
(page 3–1031). If the pivot points of the VIZBlock
andthesubstitutedgeometrydonotmatch,you
may not obtain the desired results. Adjust the
pivot point of the VIZBlock object using the
Adjust Geometry button to align the substituted
geometry correctly.
See also
XRef Objects (page 3–394)
XRef Scene (page 3–407)
Procedures
To use a n obj ect fr om the curr ent s cene as a
substitute:
1.
Select an objec t, and then apply the Substitute
modifier.
2. Click Pick Scene Object, and then in the
viewport, select an object to substitute for the
selection.