Apple Final Cut Studio Spécifications télécharger pdf (Page 80)

The finishing process can also result in changes to sequence resolution that may have

an impact on the different kinds of effects clips you may use in your program.

Related topics include:

• Creating High-Quality Slow-Motion Clips Using Motion

• Using Effects in Offline/Online Workflows That Change Resolutions

• When a Color Roundtrip Changes Sequence Resolution

Creating High-Quality Slow-Motion Clips Using Motion

If there are clips using linear or variable slow-motion speed effects in your sequence, you

have the option of rendering them at a much higher quality using the optical flow image

analysis capabilities of Motion. This feature lets you easily create extremely smooth

slow-motion effects.

To do so, send any clip that uses linear or variable speed effects to Motion. Variable speed

keyframes are converted automatically to their Motion equivalent. When Motion opens,

select the clip, open the Timing parameter group in the Inspector, and set the Frame

Blending parameter to Optical Flow.

It may take a moment for Motion to analyze the clip. This is a necessary step for achieving

completely smooth slow-motion effects. Once the analysis is complete, there are two

ways you can incorporate the effect back into your edited sequence:

• You can save the Motion project and go back to Final Cut Pro. A Motion project clip

for that project is embedded in the Timeline when you send the clip to Motion, and

you can simply render it in the Timeline and output your program as is.

• If you plan to grade your project using Color, which isn’t compatible with Motion project

clips, you instead need to export the clip from Motion as a QuickTime file using

whichever codec you intend to master your program with. You then reimport the clip

into your Final Cut Pro project and reedit it into your sequence to replace the original

clip and speed effect.

Using Effects in Offline/Online Workflows That Change Resolutions

Media Manager operations performed during the process of reconforming a program

can sometimes change a sequence’s resolution. For example, if you have HD source media

but performed the offline edit using downconverted media at an SD resolution, you can

use the Media Manager to create an offline duplicate of your sequence that uses an

online-quality sequence preset in preparation for reconforming the original HD media.

If a Media Manager operation such as Create Offline changes the resolution of a sequence,

the Motion tab attributes of every clip in that sequence are adjusted proportionally to

match the new frame size.

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Apple Final Cut Studio Spécifications Page 80