Adding, modifying, or deleting a transition on the Sceneline:

For those who might not know what a transition between clips is, this is an effect that you add between two clips.

To add a transition between two clips to the scene line, the first thing you do, of course, is to open the scene line.
On the “tasks” pane, we select the “Edit” menu, and click the “Transitions” option.
Standard Premiere will show you all the transitions that are available.
If you know the category to which transition the you are looking for belongs to, click the down arrow next to the “Show All” box and select a category from the list. This will filter the various transitions that are already in the panel with examples.
When you move the mouse pointer over one of the transitions, this will show a preview of it.
To add a transition to the scene line click and drag it between two clips.
To change a transition to click and drag the new transition over the old transition.
To remove a transition, select the transition, and press the Delete key on your keyboard.


Adding, modifying, or deleting transitions on the Timeline

It is just as easy to do this in the timeline.
Click and drag the transition between two clips.

If you want to remove it from the Timeline, select it and press the Delete key on your keyboard.
If you want to change it, click and drag another transition to the transition box in the Timeline.
For those who might not have noticed, the transitions in the timeline are displayed as small squares for the title of the clip.


Editing transitions:

All transitions have several properties that we can adjust. These are not the same for each transition, but the most common ones I’ll explain, and it is up to you to try the others.

To edit a transition, select it, in the scene line or timeline, and click the “Edit transition” button.
You find this button at the bottom of the “Transitions” pane (see above).

The most common properties of a transition are the “Duration”, the “Alignment”, the “Start” and “End” point, the color of the border, the width of the edges and “anti-aliasing”.

The best thing to do first is to select a checkbox labeled “Show Actual sources”. This gives an example of the clips again, instead of those gray A and B pockets.

Ok, let’s quickly go over the options again.

  • Duration : This is used to set the duration of the transition.
    The default duration is one second.
    You can possibly open the timeline of the transition by clicking this button, and adjust the duration of the transition in it by clicking the mouse and dragging the edges.
  • Alignment: This is used to indicate how the transition is aligned between clips.
    By default there are centered transitions between clips.
  • Start-/end point: Lets you configure it to what percentage of the transition is completed at the beginning and end of the transition.
  • Actual sources show: Displays the start and end frames of the clips shown.
  • Edge Width: Seems clear
  • Color edge: I think this is clear
  • Negative: This transition displays the specified images as negative.
  • Quality anti-aliasing: It adjusts the smoothness of the edges of the transition
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