Remember to add a minus (-) operator to the expression of the wheels
on the right side of the model so they don’t rotate in the opposite
direction.
12 Save your file as mycar_rig_04.max.
Pivoting the Wheels
You now need to make sure the front wheels pivot or “turn” as the car moves
left or right along the animation path. For added realism, you will also establish
a relationship between the wheel pivot and the turn of the steering wheel.
Set up the lesson:
■ Continue from the previous lesson or open car_rig_04.max.
Set up helpers for the front wheels:
In the same way you created a Point helper to direct the car animation along
a path, you will also create two more Point helpers to control the pivot of the
front wheels by the rotation of the steering wheel.
1 In the Top viewport, zoom in on the car and press F3 to switch to
Wireframe mode.
2 From the main menu, choose Create > Helpers > Point.
Pivoting the Wheels | 633
