
Chapter 4 Working with Effects and Filters
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To control the source imagery:
1. Select Preview > Image
2. Select one of the following:
• Proxy: Lets you view your effect even if you do not have media associated with it.
Instead, the numbers 1 and 2 are substituted for the outgoing and incoming clips as
determined by the host editing application.
• Use Source: Lets you view a single frame of video associated with your effect. The
program shows the first frame of video throughout the effect. The still image does not
update as your effect moves.
• Update Source: Lets you view the actual video on a frame-by-frame basis while
previewing the effect. This slows playback, but allows for a completely frame accurate
preview.
Using an External Monitor to Preview Effects
An external monitor can also be used to preview effects.
Updating the External Monitor
You can auto-update monitor previews every frame of your effect to an external video
monitor connected to your hardware. This is not available in some Avid editing applications
or system configurations.
To auto-update an external monitor:
• Select Preview > Auto-update Monitor
Displaying Current Frames or High Quality Video
You can do the following:
• Preview the current frame in the Composite window to the external video monitor.
• Previews high quality on the external monitor even when you are working in Draft
mode.
Display Frame on Monitor button
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