System information
If you have not specified a device, the Preview Device tab will be displayed when you click the Preview on
External Monitor button.
Video is sent to the external monitor and the Video Preview window at the same time. If you
experience dropped frames, try clearing 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 an External Video Monitor" on page 474 and "Preferences - Preview
Device Tab" on page 585.
Add or bypass video effects
Click the Video Output FX button to apply an effect to every video event in your project.
You can use the Split-Screen View button in the Video Preview window to create a split-screen preview
that bypasses all video effects (track effects, event effects, media effects, and video output effects) without
removing them from your project.
For more information, please "Applying video effects" on page 315 or "Split-Screen Previews" on page 472.
Adjust the preview quality and resolution
Click the Preview Quality button and choose a setting from the menu to change the quality and resolution
for rendering your video preview.
This setting is used for previewing only and has no effect on the final rendered video. Decreasing the
preview resolution can allow the Vegas Pro Video Preview window to display a higher frame rate, especially
for complex projects that contain overlays, transitions, and effects.
The Auto setting will adjust the frame size to fit the Video Preview window size. The Full setting processes
frames at the project frame size. The Half setting processes frames at half the project frame size. The
Quarter setting processes frames at one-quarter of the project's frame size. For example, if you have an
NTSC (720x480) project, Half creates a 360x240 preview; Quarter creates a 180x120 preview.
Choosing a Quarter or Half setting can improve playback performance, especially when previewing
high-definition source material.
If you want to display square pixels in the Video Preview window even if the Pixel aspect ratio setting in the
Project Properties dialog is using nonsquare pixels (DV), right-click the display and choose Simulate Device
Aspect Ratio from the shortcut menu.
PREVIEWING YOUR PROJECT467