Keyframes and Curves

Although behaviors are ideal for instantly adding complex motion or effects to an object, keyframes provide additional precision and flexibility. Keyframes ensure that a particular event happens on the exact frame you choose. Most common effects utilize some keyframing. Whenever a movement or effect is timed to match a musical beat or a particular word in the soundtrack, a keyframe is the best tool for the job. Furthermore, any effect where multiple objects are affected in a coordinated way is usually the result of keyframing.