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442 Chapter 6: Transforms: Moving, Rotating, and Scaling Objec ts

Select and Squash

Main toolbar > Select And Squa sh (on Selec t And Scale

flyout)

Right-click an objec t. > Scale (selects current toolbar

Scale mode)

The Select A nd Squash tool is useful for creating

different phases of the “squash and stretch”-style

animation often found in cartoons. The Select

And Squash tool, available from the Select And

Scale flyout (page 1–440), lets you scale objects

according to the active axis constraint. Squashing

an object always involves scaling down on one axis

while simultaneously scaling up uniformly on the

othertwo(orvice-versa).

Squash scales two axes in opp osite directions, maintaining

the object’s original volume.

You can restrict object scaling to the X, Y, or

Z axis, or to any two axes, by first clicking the

appropriatebuttonontheAxis Constraints toolbar

(page 3–687).

When the Select And Squash tool is active, clicking

an object selec ts it and dragging the mouse scales

it.

Impor tant: Avoid using Select And Squash at the object

level. The non-uniform scaling that it effects is applied

as a transform and changes the axes of the object,

so it affec ts other object properties. It also alters the

properties passed hierarchically from parent to child.

When you per form other operations on the object, such

as rotation, inverse kinematics calculations, and other

positioning operations, you may not get the results

you expect. To recover from these problems, use the

Hierarchy panel’s Reset Scale button or the Utilities

panel’s Reset XForm utility. Either of these options

will reset the axes to use the non-uniform scale as the

fundamental scale for the object.

As an alternative to non -uniform scaling with Select And

Squash, consider using the XForm modifier (page 1–959).