Apple Motion 5.1.1 - Manual (Page 928)

Chapter 21 3D compositing 928
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Only a 3D group with the Flatten parameter enabled has the Crop, Drop Shadow, and Four
Corner parameters.
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 an object in the Canvas on page 932.
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
Cameras overview
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.
Note: When building a 3D project, it can be useful to position cameras to examine your project’s
layout from different viewpoints. Rather than repeatedly moving the Perspective camera, you
can add scene cameras to use as spatial bookmarks. You won’t want to use these cameras during
export, so be sure to disable them before rendering.
The scene cameras 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.
Add a scene camera to a Motion project
1 Choose Object > New Camera or press Option-Command-C or click the New Camera button in
the toolbar.
A camera object is added to the Layers list, the Timeline, and the Canvas (represented there 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 pane in the Inspector becomes available.
If you add a camera to a project that contains no existing 3D groups, the following dialog
appears:
2 Click Keep as 2D or Switch to 3D.
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