Editor's Toolkit: Using Overlay Mattes with
Adobe® Premiere®
The various mattes in the Editor's Toolkits are simply black and white
animations that are used to define transparency in composited video. These
animations do not have built-in alpha channel transparency like the many
full-color effects and transitions in the Toolkits and therefore a slightly more
complex to use.
|
|
The first video uses one of the stock
alpha channel overlay from Super Set 115 (ETK:5), while the second video uses a
black and white overlay matte from the same Super Set and a completely different
animated texture (Jump Backs animation #836 from JB21). |
To use an overlay matte in Adobe® Premiere®:
1. Arrange your clips on the timeline (Figure 1):
* Video 3: overlay matte
* Video 2: background animation
* Video 1: video clip
Figure 1 - The timeline in Premiere with an overlay matte.
2. Add a Track Matte Key to the clip on Video 2: Effects > Video Effects
> Keying > Track Matte Key.
Figure 2 - Add a Track Matte Key to the clip on Video 2.
3. In the Effects Control window (for the clip on Video 2), select the Track
Matte Key and set the Matte to Video 3 (Figure 3).
Figure 3 - In the Track Matte Key Effect Control for the clip in Video 2. Set
the Matte to "Video 3" and the Composite Using mode to "Matte
Luma."
4. Set Composite Using to Matte Luma (Figure 3).
5. Click the Toggle Track Output off for the Video 3 track (Figure 4).
Figure 4 - Click the Toggle Track Output in Video 3.
|
