User`s guide

Previewing Effects
195
Previewing with Square Pixels
Preview with Square Pixels shows your project at 4:3 aspect ratio, the standard used by the
television industry. It provides an accurate portrayal of your project on a television monitor.
This option is selected by default.
Previewing with the Caps Lock Key
Holding down the Caps Lock key disables or suspends rendering in the Composite window,
letting you quickly adjust parameters. The Composite window displays a message over the
effect.
You can change any parameter or move the position indicator while pressing the Caps Lock
key and the image remains unchanged. When you release it, the image will update.
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Undoing actions while pressing the Caps Lock key does not refresh the Composite window
image. Holding it down will not affect final rendering.
Refreshing Video and Images
You can updates the Preview window to the correct frame for the current time in the effect.
If you have the Update Source option selected by default you do not need to keep refreshing
the image as it will always be updated to the correct frame. See “Controlling the Source
Imagery” on page 195.
To update the Preview window:
• Select Preview > Refresh Image.
Previewing Effects with Audio
You can preview your effect with audio at anytime.
To preview with audio:
1. Select Preview to RAM to play your effect with the audio.
Controlling the Source Imagery
You can control the source imagery used in the Preview window. For example, you can view
a single frame of video that is linked to your effect: