To give your particle systems just a little more, we're going to add a little randomness to some of the parameters. This randomness will help give your animations a more organic feel.
From this chapter's exercise files, double-click the 07_03 project. Play back the project. The particle system consists of little demograms that rain down from a line. The Angle and Spin values cause the demograms to rotate while moving, and the
Opacity Over Life parameter allows each particle to fade in and out during its lifespan. The particles also change color over their life as reflected in the Color Mode menu and the gradient outlining the cycle. We're going to add randomness values to tweak the animation. Whenever we add a randomness value, it's going to look at the original value above it and add and subtract to it randomly every second based on the number you specify. For example, say the Scale value is set to 50. If you add a Scale randomness of 10, every second...