2
Table Of Contents
- Motion User Manual
- Contents
- Motion 2 Documentation and Resources
- Getting To Know Motion
- Creating and Managing Projects
- Creating New Projects
- Managing Projects
- Editing Project Properties
- Browsing Media Files in Motion
- File Types Supported by Motion
- Adding Media to Your Project
- Managing Objects in Your Project
- Deleting Objects From a Project
- Exchanging Media in a Project
- Object Media Tab Parameters
- Using Media in the Library
- Organizing Layers and Objects in Motion
- The Background of Your Project
- Selecting Objects and Layers in the Layers Tab
- Reorganizing Objects in the Layers Tab
- Nesting Layers Inside Other Layers
- Grouping and Ungrouping Objects
- Showing and Hiding Layers and Objects
- Fixing the Size of a Layer
- Locking Layers and Objects
- Collapsing and Uncollapsing Layer Hierarchies
- Renaming Layers
- Searching for Layers and Objects
- Sorting Layers and Objects in the Media Tab
- Customizing and Creating New Templates
- Basic Compositing
- Using the Timeline
- Using Behaviors
- Keyframes and Curves
- Using Text
- Working With Particles
- The Anatomy of a Particle System
- Using Particle Systems
- Creating Graphics and Animations for Particle Systems
- Advanced Particle System Controls
- Animating Objects in Particle Systems
- Using Behaviors With Particle Systems
- Applying Filters to Particle Systems
- Particle System Examples
- Saving Custom Particle Effects to the Library
- Using the Replicator
- The Difference Between the Replicator and a Particle System
- The Anatomy of the Replicator
- Using the Replicator
- Advanced Replicator Controls
- Animating Replicator Parameters
- Using the Sequence Replicator Behavior
- Using Behaviors With Replicators
- Applying Filters to Replicators
- Saving Custom Replicators to the Library
- Using Filters
- About Filters
- Working With Filters
- An Introduction to Filters
- Working With Filters
- Enabling, Renaming, and Locking Filters
- Copying, Pasting, and Moving Filters
- Reordering Filters
- Changing Filter Timing
- Blur Filters
- A Fun Effect That Can Be Used With All the Blur Filters
- Border Filters
- Color Correction Filters
- Distortion Filters
- Glow Filters
- Keying Filters
- Matte Filters
- Sharpen Filters
- Stylize Filters
- Tiling Filters
- Working With Third-Party Filters
- Working With Generators
- Using Shapes and Masks
- Working With Audio
- Exporting Motion Projects
- Keyboard Shortcuts
- Video and File Formats
- Supported File Formats
- Standard Definition vs. High Definition Video Formats
- Popular Video Codecs for File Exchange
- What Is Field Order?
- Using Square or Nonsquare Pixels When Creating Graphics
- Differences in Color Between Computer and Video Graphics
- Using Fonts and Creating Line Art for Video
- Scaling Imported High-Resolution Graphics
- Creating Graphics for HD Projects
- Integration With Final Cut Pro
- Using Gestures
- Index
Chapter 12 Using Shapes and Masks 863
To rotoscope a subject by animating a mask:
1 Choose View > Resolution > Full to ensure that you are viewing the Canvas at full
resolution.
2 Move to the first frame where the mask animation should begin, then draw a mask that
accurately isolates the subject.
3 When you’re finished drawing the first mask, enable Record (press A).
4 Move to the first frame of the Timeline where you want to change the shape of the
mask, then make any necessary changes to its control points.
Tip: A good way to start rotoscoping an image is to find the frame with the most detail
showing in the subject you’re masking, and use that as your starting frame. For
example, if you’re masking someone walking, choose a frame where both that person’s
arms and legs are out in mid-stride. This allows you to decide how many control points
you need to start with. Using the minimum number of control points you can to
achieve the necessary level of detail in your mask makes it much easier to animate.
You should also bear in mind that it’s not always necessary to rotoscope an entire
subject with a single mask. Motion allows you to apply multiple masks to a single
object, so you can rotoscope different parts of a subject with separate masks. This can
make your job much easier. For example, if you’re rotoscoping someone carrying
something while walking across a room, you could use one mask for the upper part of
their body which doesn’t change shape very much, and another two masks for the legs,
which change shape considerably as the person walks.
Warning: If the Canvas resolution is not set to full, the outlines of objects and images
may shift slightly. As a result, masks created to trace a subject at less than full
resolution may not be accurate.
Record button
01112.book Page 863 Sunday, March 13, 2005 10:36 PM