Apple Final Cut Pro 6 - Manual (Page 1430)

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Rendering and Video
Processing Settings
When you apply more effects to a clip than your computer
can process in real time, you need to render temporary media
files to play your sequence in real time.
This chapter covers the following:
 What Is Rendering? (p. 645)
 Render Indicators in Final Cut Pro (p. 646)
 The Rendering Process (p. 650)
 Changing Render and Video Processing Settings (p. 659)
 Adjusting Gamma (p. 668)
 Managing Your Render Files (p. 672)
 Tips for Avoiding Unnecessary Rendering and Reducing Render Time (p. 676)
What Is Rendering?
Any time Final Cut Pro must perform more calculations than your computer can handle
in real time, you need to render. Rendering is the process of creating temporary video
and audio render files for segments of your sequence that Final Cut Pro cannot play in
real time. When you render a segment of your sequence, Final Cut Pro substitutes a
render file for the segment during playback. Render status bars above the ruler in the
Timeline indicate which sections can play back in real time and which segments
require rendering.
Because rendering takes time away from the editing process, the goal is to render as
little as possible. For more information about real-time playback, see Chapter 28, “
Using
RT Extreme ,” on page 617.