5

Working with Objects Inside 2D Groups and Flattened 3D Groups
You can use the Isolate command to align the active view with the axis of a 2D group
or flattened 3D group. Doing so facilitates making adjustments to objects inside the
group. For more information on the Isolate command, see Isolate.
If you cannot find an object in your project, you can locate it by resetting its Position
parameter to 0, 0, 0. This centers the object in the flat group.
When moving an object along its Z axis inside a flat group—which includes 2D groups
and flattened 3D groups—the object appears to grow larger or smaller rather than
move closer to or further away from the camera.
Cameras
In 3D mode, anything you see in the Canvas represents the viewpoint of a camera, either
a default reference camera or a scene camera that you create. You can create cameras
to look at your scene from different points of view. You can place, animate, and apply
behaviors to cameras in your scene. Creating multiple cameras lets you make different
cameras active at different times, allowing you to “cut to” different views over the course
of the project.
Creating a Scene Camera
The scene cameras that you create are used for rendering output. Scene cameras appear
in the Canvas as wireframe camera icons and as objects in the Layers list and Timeline.
To add a scene camera to a Motion project
µ
Choose Object > New Camera (or press Command-Option-C).
A camera object is added to the Layers list, the Timeline, and the Canvas (represented by
a wireframe icon). The 3D Transform tool in the toolbar becomes active, the Camera HUD
appears (if it isn’t visible, press F7), and the Camera controls in the Inspector become
available.
1254 Chapter 21 3D Compositing