Use the XForm (short
for Transform) modifier to apply transformations (Move, Rotate,
Scale) to objects. The XForm has two main functions:
- To animate transformations of a sub-object
selection. You can also animate the position of the modifier's center.
- To transform an object at any point in
is a variant of XForm. Linked XForm
has no gizmo or center of its own. Instead, a given selection is
"linked" to another object, which supplies its gizmo and center.
Using Linked XForm, you can link a sub-object selection directly
to the coordinate system of another object.
XForm provides a gizmo
and center for any geometry it receives from the stack whether it's
a sub-object selection or the whole object. XForm has no parameters.
When you move the XForm modifier gizmo, the center moves with it,
along with the geometry.
You can reposition the
XForm center separately from the gizmo.
Offsetting XForm Center
At the XForm Center sub-object
selection level, only the Move transform is available. This lets
you reposition the center. When you return to the Gizmo level, you
can rotate or scale the selection around the offset center. The
center position and gizmo transformations are all animatable.
Scaling with XForm
When you scale an object
with a toolbar Scale tool, 3ds Max Design applies the effect to the
object after all the modifiers in the stack. In some cases you might
want to squash or stretch an object before applying geometric or
edit modifiers. XForm makes this possible.
By applying XForm and
scaling its gizmo, you can place the scaling operation anywhere
in the stack.
Using XForm with Volume
You can combine the XForm
Select modifiers to animate sub-object
selections. This combination makes it possible to animate both the
effect of a modifier on the selection (Volume Select) and a transformation
of that selection (XForm).
To use the XForm modifier:
- Choose a location in an object's stack
and apply the XForm modifier.
The Gizmo sub-object
level is automatically activated. All transform buttons are available
on the toolbar.
- Move to a nonzero frame, and turn on (Auto Key) to animate the
- Transform the gizmo.
As you transform the
gizmo, the selected geometry is transformed with it.
To use XForm as a scaling modifier:
- Apply XForm to an object or a sub-object
- Scale the gizmo.
The rescaled geometry
becomes "part of the stack" because the scale transform is carried
with XForm, instead of being applied after the modifiers.
This modifier has no
parameters, but you can transform the XForm gizmo and the XForm
center. If you switch the selection level to the XForm center, only
the Move transform is available. This lets you offset the center and
transform the gizmo around it. Both offset and gizmo transformations are