User`s guide

Chapter 1 Desktop
38
Each face track has media associated with it that is masked and filtered independently from
the shape. Each of the six faces of a cube could have different media, different filters, and
different masks. A mask or filter applied to a face track is known as an “upstream”
operation, because it takes place before shape transformations are applied. See “The Plug-In
Filter Manager” on page 188 and “Upstream and Downstream Masks” on page 179.
Each face track contains a media track and a mask track.
• Media track: Defines the media associated with the face track—see “Working with
Media” on page 95.
• Mask track: Applies a mask to the face—see “Working with Masks” on page 178.
Any track nested inside a shape’s face track is associated with that face’s media. You can
drag other shape tracks into a face track to associate that shape with the face track’s media.
In the following example, the Sphere and 3D Plane are separate shape tracks. You can
position, scale, and rotate the 3D Plane track independent of the sphere.
In the following example, the Sphere track is nested inside the 3D Plane shape’s face track.
Since the sphere is now part of the 3D Plane shape’s media, it moves and transforms as the
3D Plane moves and transforms.