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90Final Cut Pro User Guide
By default, rendering begins in the background 5 seconds after you stop working and
moving the pointer in Final Cut Pro. You can turn off background rendering or adjust this
setting in Final Cut Pro preferences (see Playback preferences in Final Cut Pro).
You can also manually control rendering for a project or a portion of a project, and you can
delete render files for one or more projects, events, or libraries to free up storage space.
See
Manage render files in Final Cut Pro.
Play back slow-motion clips in Final Cut Pro
To create high-quality slow-motion effects, you can use your video camera or iPhone to
record video at high frame rates—those in excess of the standard 30 frames per second (fps).
For example, iPhone 11 Pro Max in the Slo-mo setting can record video at up to 240 fps. The
resulting slow-motion clips appear in the Final Cut Pro browser with an icon to indicate that
they were recorded at a high frame rate.
Organize your library
Intro to libraries in Final Cut Pro
A library contains multiple events and projects in the same location. When you import
video, audio, and still images, or record directly into Final Cut Pro, the source media files
(your raw footage) appear as clips in one or more events in the library. An event is similar
to a folder that can hold projects as well as dozens, hundreds, or even thousands of video
clips, audio clips, and still images. Each event in the library refers to media on your Mac or
storage device, and a database file keeps track of where everything is.
When you select an event in the library, the media it contains appears as clips in the
browser. You select clips or portions of clips in the browser to work with them. You can
sort clips in the browser by creation date, as well as by date imported, reel, scene, clip
duration, and file type.