12 On the Position List rollout, highlight the second Position XYZ controller
and click Set Active.
13 Try moving the car on its X axis again.
TIPTo better see the wheel rotation, you can switch your viewport display
to Smooth + Highlights.
The wheels now rotate and at the correct rate, but they do so in a
backward direction.
14 On the Expressions panel, add a minus (-) in front of the expression and
click Update.
15 Move the car on its X axis again and note how the wheel rotates in the
proper direction.
16 Repeat the preceding steps for each of the remaining three car wheels.
Because the wheels were mirrored, the wheels on the right side of the car
do not need the minus sign added to their expression, whereas those on
the left side do.
17 Close all the Parameter Wiring dialogs.
622 | Chapter 4 Animation Tutorials
