2019.x

ExpertRender
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Media Composer also provides an option that improves image quality during playback of mixed-
format sequences where material requires resizing. You might need to deselect this option to avoid
missing frames or choppy video during real-time playback.
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If you switch from one video quality level to another during the course of your workflow, you might
create precomputed clips that have not rendered with the quality that you need for your final output.
You might need to manually purge the precomputed clips and re-render effects. For more information,
see “Ensuring the Quality Level of Precomputed Clips” on page 139.
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On systems with an Avid input/output hardware device attached and selected for playback, real-time
effects are always enabled.
To switch the video playback quality:
t Do one of the following:
- In the Timeline bottom toolbar, click the Video Quality Menu button and cycle through the
video quality settings to the one you want.
- In the Timeline bottom toolbar, right-click the Video Quality Menu button and select the
video quality setting you want from the menu.
When you change video qualities, immediate changes appear in the quality and the sharpness of
the media displayed in the Source/Record monitor.
To prepare a sequence for output to a digital cut, switch to Full Quality mode and use
ExpertRender. For more information, see “ExpertRender” on page 127.
ExpertRender
ExpertRender determines which effects need to be rendered to achieve successful playback of a
sequence.
You can use the ExpertRender feature in the same way that you use the standard Render commands.
You can use the ExpertRender at Position command or you can mark IN and OUT points and then
use the ExpertRender In/Out command. For more information, see “Using the ExpertRender
Command” on page 129.
If Media Composer has difficulty previewing effects in real time and displays playback information
indicators in the timecode track of the Timeline, the steps you take when you use the ExpertRender
In/Out command are somewhat different from the steps you take when you use one of the
ExpertRender commands in other circumstances. For more information, see “Using the
ExpertRender Command After a Real-Time Playback Attempt” on page 130.
For more information on rendering, start with “Basics of Effects Rendering” on page 41.
Understanding ExpertRender
When you render effects by using the Render at Position or Render In/Out command, Media
Composer renders all effects in the selected material — all effects on the enabled tracks at the
position or all effects on the enabled tracks between the marked IN and OUT points. In most cases,
Media Composer renders some effects that do not require rendering for successful playback,
increasing the time to render and creating more precomputes than necessary.