Animating parameters of an effect over time with keyframes
Effects are incredibly easy to apply and manipulate in FCPX, but at first, they're quite static. You throw on an effect and boom! It's there, as is, for the entire clip. But what if you wanted to have an effect to fade in? Or to change intensity throughout the clip? Welcome to the world of keyframes.
The keyframing process works like this: you tell FCPX what you want a certain parameter's value to be at one point in time on a clip, then change that value at a different point in time and FCPX animates (or interpolates, if you want to use fancy wording) the difference.
Getting ready
Add a Black & White effect to any clip. Ideally, make the clip about six seconds long. Here's what we want to happen. We want this clip to start off in color and then, about two seconds in, we want the clip to fade to black and white within the next two seconds.
How to do it...
1. Place your cursor about one-third of the way (approximately two seconds)...
