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CHP. 14 USING VIDEO FX, COMPOSITING, AND MASKS
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In the first example, the two tracks intersect along their rotation axis. In the second example, adding a 2D
track above the “cool” track causes it to be rotated in 3D and composited as a 2D image so the “hot” text is
displayed above it without intersecting.
Single-track 3D motion
1.
Click the Track Motion button ( ) on the track that contains the overlay that you want to animate. The
Track Motion window is displayed.
2.
From the Compositing Mode drop-down list, choose 3D Source Alpha.
3.
Choose a setting from the Layout drop-down list to choose the workspace display that you want to use.
The
Layout setting allows you to see your track from various points of view.
4.
Adjust the selection area to change the viewable area of the track and its position in space. Guides are
displayed in bold to indicate how the track will be moved or rotated:
Moving closer to or farther
from viewer. Drag across
corners to flip the track.
Dragging the track. Rotating left to right
around the Y axis.
Rotating forward or
backward around the
X axis.
Rotating around the
Z axis.