System information
Setting up your cache
1. From the Options menu, choose Preferences and select the Video tab.
2. Enter a value in the Dynamic RAM preview (max) box to set the amount of RAM that you want to
dedicate to video previews.
The maximum size of the RAM cache is displayed to the right of the control. You must leave at
least 64 megabytes available for Vegas Pro (more if you are creating complex projects). If you
reserve excessive amounts of RAM for your RAM cache, performance may decrease.
3. Click OK.
Building the preview from a selection
1. Select the region that contains the frames you want to cache.
2. From the Tools menu, choose Build Dynamic RAM Preview (or press Shift+B). Each frame in the
selection is rendered.
Click anywhere in the timeline to cancel.
3. After rendering is finished, click Play . The cached video will play back at the frame rate specified
on the Video tab of the Project Properties dialog.
If your RAM cache is not large enough to contain the entire selection, the selection is
automatically adjusted to include only the cached region. You can increase the Dynamic RAM
Preview max setting on the Video tab of the Preferences dialog to increase the size of the
cache.
Clearing the cache or turning off dynamic RAM previewing
To clear the RAM cache during playback, you can resize the Video Preview window or choose a new setting
from the Video Preview Quality drop-down list.
To turn off dynamic RAM previewing, enter 0 in the Dynamic RAM preview (max) box on the Video tab of
the Preferences dialog.
Using an External Video Monitor
External video preview allows you to reclaim valuable real estate in the Vegas Pro window, check colors and
safe areas on a broadcast monitor, or just view a full-screen preview of your project.
If you want to preview on your external monitor and in the Video Preview window at the same time,
select the Display frames in Video Preview window during playback check box on the Preview Device
tab of the Preferences dialog.
For more information, see "Using the Video Preview Window" on page 465 and "Preferences - Preview
Device Tab" on page 585.
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