In the previous section, we disabled Use Gravity on the shooting balls. We did this in anticipation of changing the balls from being bouncy balls to balls of fire. Let's make that magic happen now. We will use the Particle System to render it instead of mesh geometry.
There are a lot of ways to get particle effects into your Unity project. If you recall, in Chapter 4, Gaze-Based Control, we added a water hose, spark emitter, and explosion effects from the Unity Standard Assets package. Here, we'll build our own, but use one of the materials, ParticleFireCloud, provided with the package. In the Unity Asset Store, you can find many offerings of particle effects and system enhancements too.
First, make a new prefab derived ...
