When keyframing in Final Cut Pro you have the ability to choose to have the animation be either constant or variable. By right clicking on a keyframe you can choose to select Smooth, which will change the animation from constant to variable. You will also now see what is called a velocity handle. These handles can be adjusted to increase the amount that animation eases in or out.
This is a great way to soften the way an effect happens. Color effects for example will happen in a more gradual manner with a smooth keyframe at the begining. The best example is this, imagine if you were animating a tire swing hanging from a tree. As the swing reached it's highest point, it would slow to a stop, then speed back up as the swing started it's decent, instead of maintaining the same speed at all times.
This is a great way to soften the way an effect happens. Color effects for example will happen in a more gradual manner with a smooth keyframe at the begining. The best example is this, imagine if you were animating a tire swing hanging from a tree. As the swing reached it's highest point, it would slow to a stop, then speed back up as the swing started it's decent, instead of maintaining the same speed at all times.
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