Adobe 25510629 - After Effects CS3 Professional, Руководство пользователя

Страница: 66 / 130

66 How to
A) Tight: Close-up shot, approximately from the chest up B) Medium: Medium-distance shot,
approximately from the waist up C) Wide: Wide-angle, full-body shot, with space above and below
the subject.
Adding overlay layers
You can add up to four overlays to any session, regardless of whether the virtual set has one or
more foreground elements. By default, one empty overlay layer exists in each session. To add
an overlay, right-click the thumbnail for an existing overlay that has a source assigned, and
choose Add New Overlay. This option is unavailable if the current overlay has no source
assigned or if four of these layers already exist.
Using a still image as the input clip
You can assign any supported graphic format as the input clip, key it, and then output a
composited still image or video clip.
To output a still image, use the Frame Sequence format. For more information, see
“Outputting still images (Frame Sequence)” on page 122 .