Adobe 25510629 User Guide - Page 70

Overlays, Format: DirectShow AVI

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When you create the alpha region, it is often best to draw a frame around it, as well, such as the pink border drawn around the alpha region in this example. Overlays The foreground element can be any object or structure that you want to appear in front of the subject for at least part of a scene. The foreground could be a prop such as a chair that lends dimension or a door that the subject emerges from behind. In the following example, the foreground is a desk. For photographs, you can either copy the overlay from the background and paste it back in as a separate layer or add an object from another image. If you're drawing the elements in an image-editing or 3D application, then you should put each element on its own layer. For videos, you can use Ultra to create the keyed overlay. 1. Record the clip as you would any clip to be keyed in Ultra (that is, against a green or blue background). 2. Open the clip in its own session, and key it as usual. 3. Save the clip with the following settings on the Output tab: Format: DirectShow AVI Codec: Uncompressed 70 How to

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70
How to
When you create the alpha region, it is often best to draw a frame around it, as well, such as
the pink border drawn around the alpha region in this example.
Overlays
The foreground element can be any object or structure that you want to appear in front of the
subject for at least part of a scene. The foreground could be a prop such as a chair that lends
dimension or a door that the subject emerges from behind. In the following example, the
foreground is a desk.
For photographs, you can either copy the overlay from the background and paste it back in as
a separate layer or add an object from another image. If you’re drawing the elements in an
image-editing or 3D application, then you should put each element on its own layer.
For videos, you can use Ultra to create the keyed overlay.
1.
Record the clip as you would any clip to be keyed in Ultra (that is, against a green or blue
background).
2.
Open the clip in its own session, and key it as usual.
3.
Save the clip with the following settings on the Output tab:
Format: DirectShow AVI
Codec: Uncompressed