Use the modelling tools to define the source
mesh so that it outlines the original shape of the image in the
front clip.
To
define the source mesh for the original image:
Go
to the first frame of the clip.
Click
Front Source to define the source mesh for the front clip.
Add
a mesh over the area to warp and modify its shape to match the original
image.
If
you are using a live-action or moving clip, the source mesh must
follow the movement of the image. You can either modify the mesh manually
throughout the clip, or use the Stabilizer to track the movement in
the clip. See
Modifying the Meshes for Live-Action Clips.
