Preview rendering

With Video Pro X, you can pre-render specific sections of your movie. This is especially useful if smooth playback is not possible due to the applied effects and transitions. The advantage versus the option "Combine audio and video" in the "Edit" menu is that all of the objects will be maintained in the project. The rendered material will only be played in the background when the playback marker reaches the corresponding position.

Preview rendering is available in timeline mode and multicam mode.

NOTE Note about multicam mode: Only the source tracks will be rendered, not the target tracks.

Video Pro X offers two options:

  • It can automatically indicate all sections that can be rendered.

  • Or, alternatively, you can indicate the section that should be pre-rendered manually.

Automatic preview rendering

When using automatic preview rendering, you don't have to think about which sections could be affected. Video Pro X analyzes your computer's performance and determines which sections can be considered for preview rendering.

To perform automatic preview rendering, proceed as follows:

  1. Click on the preview rendering button in front of the timeline.

    Video Pro X will then analyze which sections should be pre-rendered.
    A dialog will appear, indicating how many areas have been located:

    These sections will be additionally marked in the Video Pro X timeline using red bars.

  2. Select "Yes" in the dialog to start preview rendering.
    The red bars will appear green after preview rendering is over. If you make changes in the pre-rendered section, it will appear red again and will have to be updated.

  3. If you choose "No" instead, you can still conduct preview rendering later.

Manual preview rendering

In manual preview rendering you first have to select a range that contains problems with hanging, choppy preview playback.

  1. Place an in and out point above the range to be rendered.

  2. Finally, click on the "Preview rendering" button. A preview rendering dialog will appear.

  1. Selected "Section".

The preselected range will now be rendered. After rendering, a green line appears in the timeline to symbolize that this range has been rendered.

The section will remain green as long as no further changes are made to it. The green line will then turn red and can be updated again.

Update preview rendering

Preview rendering is effective only as long as no changes are made to the pre-rendered area. You can recognize a prerendered area from the green bars appearing above it on the timeline. As soon as an object in the section has been edited, the green bar will turn red. You can update this section at any time.

  1. To do this, place the playback marker inside the section to be updated.

  2. Click on the "Preview rendering" button.

  3. In the preview rendering dialog select "Section" in order to update just the section selected by the playback marker.
    If you select "All", all non-rendered (red) sections will be rendered.