7. In the Rotation and Collision rollout, select the Direction of Travel/Mblur option.
8. Select the Bullet and Brass objects and hide them.
9. Drag the Time slider, and your bullets and brass should emit together.
Wiring the Parameters Together
The values that define the parameters unique to each particle system in the scene have
been set properly. Several values, such as the Use Rate, must maintain the same value for
both particle systems so that, for example, the amount of brass ejected matches the number
of bullets fired. These parameters can always be adjusted manually; however, the
Parameter Wiring tool forces one object??™s parameters to drive another??™s. In the following
exercise, the parameter values of the Super Spray Bullets particle system are used to define
the parameter values of the Super Spray Brass particle system. By wiring parameters
together, you can control more than one system by manipulating only one of them.
1. Continue with the previous exercise or load the Particle Gun2.max file from the
companion CD.
2. Select the Super Spray Bullets particle
system. Right-click in the viewport
and choose Wire Parameters from the
Quad menu. See Figure 12.25.
3.
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