Adobe 25510629 User Guide - Page 43

Input Offset area, Indicates the position of the source in the horizontal axis.

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Page 43 highlights

Defocus: Makes the current video clip or still image a little blurry, as if it were out of focus. You may want to do this to simulate depth in the composited scene, as if you had shot the video clip with a camera lens that had a narrow depth of field. Some older video cards do not support this function. In this case, this slider does nothing. This control does not improve the focus of a source that was out of focus to begin with. For more information, see "Defocusing a source" on page 119. Loop Source: When enabled, causes the current video clip to loop for the duration of the scene. For more information, see "Looping the clip" on page 105. Invert Alpha: When enabled, Ultra reverses how it interprets the alpha channel data for the current source. This is for compatibility with applications that interpret the alpha channel as film alpha, in which a value of 0 indicates complete opacity. For more information, see "Inputting sources that use film alpha, such as Avid (Invert Alpha option)" on page 65. Volume: Controls the volume level of the audio in the selected source clip. The level that you set the audio to for each source is the level at which it will be recorded in the final output movie. You can also mute the audio for each clip by moving the Volume slider all the way to the left. For more information, see "Adjusting the volume of a video clip" on page 107. Input Offset area This set of controls changes the size and position of the source on the layer plane. You should use these controls to move a source only if you cannot achieve the desired positioning by using controls on the Scene tab. For some video cards, you may need to use the Input Offset control with the Input Cropping control to avoid artifacts. For more information, see "Moving and scaling an input within the layer plane: Input Offset controls" on page 95. Grid control: This is an interactive control that lets you use the mouse to position the source. Numeric readouts: You can click in a field and then type a value. X: Indicates the position of the source in the horizontal axis. Y: Indicates the position of the source in the vertical axis. Angle: Indicates the rotational angle of the source on the layer plane. To change this setting, hold the Ctrl key while selecting the grid control and dragging vertically. Scale: Indicates the size of the source. The range is 0.05 (1/20th) to 10 (10x). To change this setting, hold the Shift key while selecting and dragging vertically. Reset: Returns the values to the default settings. Check boxes: These controls let you make common adjustments with a single click. Flip Vertical and Flip Horizontal: Flips the source vertically or horizontally. For more information, see "Moving and flipping the input vertically and horizontally" on page 97. User interface 43

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User interface
43
Defocus:
Makes the current video clip or still image a little blurry, as if it were out of focus.
You may want to do this to simulate depth in the composited scene, as if you had shot the
video clip with a camera lens that had a narrow depth of field. Some older video cards do not
support this function. In this case, this slider does nothing. This control does not improve the
focus of a source that was out of focus to begin with. For more information, see
“Defocusing
a source” on page 119
.
Loop Source:
When enabled, causes the current video clip to loop for the duration of the
scene. For more information, see
“Looping the clip” on page 105
.
Invert Alpha:
When enabled, Ultra reverses how it interprets the alpha channel data for the
current source. This is for compatibility with applications that interpret the alpha channel as
film alpha
, in which a value of 0 indicates complete opacity. For more information, see
“Inputting sources that use film alpha, such as Avid (Invert Alpha option)” on page 65
.
Volume:
Controls the volume level of the audio in the selected source clip. The level that you
set the audio to for each source is the level at which it will be recorded in the final output
movie. You can also mute the audio for each clip by moving the Volume slider all the way to
the left. For more information, see
“Adjusting the volume of a video clip” on page 107
.
Input Offset area
This set of controls changes the size and position of the source on the layer plane. You should
use these controls to move a source only if you cannot achieve the desired positioning by
using controls on the Scene tab. For some video cards, you may need to use the Input Offset
control with the Input Cropping control to avoid artifacts. For more information, see
“Moving and scaling an input within the layer plane: Input Offset controls” on page 95
.
Grid control:
This is an interactive control that lets you use the mouse to position the source.
Numeric readouts:
You can click in a field and then type a value.
X:
Indicates the position of the source in the horizontal axis.
Y:
Indicates the position of the source in the vertical axis.
Angle:
Indicates the rotational angle of the source on the layer plane. To change this
setting, hold the Ctrl key while selecting the grid control and dragging vertically.
Scale:
Indicates the size of the source. The range is 0.05 (1/20th) to 10 (10x). To change
this setting, hold the Shift key while selecting and dragging vertically.
Reset:
Returns the values to the default settings.
Check boxes:
These controls let you make common adjustments with a single click.
Flip Vertical and Flip Horizontal:
Flips the source vertically or horizontally. For more
information, see
“Moving and flipping the input vertically and horizontally” on page 97
.