Apple Final Cut Pro 7 - Manual (Page 1471)

Important: Deleted render files cannot be restored with the Undo command.
Preserving Render Files
When you make changes to effects, composited media, and other edits that have already
been rendered, the render file for the affected item is no longer valid.
• If the project has been saved since the render file was created: The render file is deleted
whenever the project is saved again, or the change falls off the “Undo queue” (the
series of changes that can be reversed with the Undo command in the Edit menu).
• If the project has not been saved since the render file was created: The render file is deleted
when the new change falls off the Undo queue.
You can keep your important render files by nesting sequences.
Using Nested Sequences to Preserve Render Files
You can preserve render files for a sequence or for audio clips within a sequence by
nesting that sequence within another sequence. Nesting is particularly useful for protecting
the render files for effects-intensive clips you plan to trim frequently.
For detailed information, see “Sequence-to-Sequence Editing.”
Disabling Tracks Affects Render Files
When you disable a video or audio track in the Timeline, any render files associated with
that track are lost. If this happens, you can restore that track’s render files by using the
Undo command.
Tips for Reducing Render Time
Here are some suggestions to avoid rendering:
• Edit the majority of your project using cuts only; add only transitions, effects, or filters
that can play back in real time or that are absolutely necessary in making decisions
about your first cut. Avoiding unnecessary effects and time-consuming rendering can
help you focus on your program’s overall pacing and structure. Once your first cut is
done, you can focus on applying effects like color correction and titles.
• Use the Unlimited RT mode and dynamic real-time playback. For more information,
see “Using RT Extreme.”
• If you use effects that need to be rendered, you can get a good idea of how the clip
looks by simply scrubbing through the clip in the Timeline or Canvas to view the effect
one frame at a time.
You can also choose Mark > Play > Every Frame (or press Option-\) to play through a
clip one frame at a time, not in real time, and get a slow-motion preview of how the
effect will look.
1471 Chapter 85 Rendering and Video Processing Settings