3
Table Of Contents
- Motion User Manual
- Contents
- Motion 3 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 Layers in Your Project
- Deleting Objects from a Project
- Exchanging Media in a Project
- Object Media Tab Parameters
- Using Media in the Library
- Behaviors and Filters
- Third-Party Filters
- Image Units (Filters)
- Generators
- Image Units (Generators)
- Particle Emitters
- Replicators
- Shapes
- Gradients
- Fonts and LiveFonts
- Text Styles
- Shape Styles
- Music and Photos
- Content
- Favorites and the Favorites Menu
- Adding Your Own Content to the Library
- Using Custom Objects from the Library
- When Library Media Becomes Unavailable
- Organizing Groups and Layers in Motion
- Background of Your Project
- Selecting Layers and Groups in the Layers Tab
- Reorganizing in the Layers Tab
- Nesting Groups Inside Other Groups
- Grouping and Ungrouping Layers
- Showing and Hiding Groups and Layers
- Fixing the Size of a Group
- Locking Groups and Layers
- Collapsing and Uncollapsing Group Hierarchies
- Renaming Groups
- Searching for Groups and Layers
- Sorting Objects in the Media Tab
- Customizing and Creating New Templates
- Basic Compositing
- Using the Timeline
- Using Behaviors
- Behaviors Versus Keyframes
- Browsing for Behaviors
- Applying and Removing Behaviors
- Modifying Behaviors
- Working with Behaviors
- Changing the Timing of Behaviors
- Animating Behavior Parameters
- Saving and Sharing Custom Behaviors
- Behavior Descriptions
- Basic Motion Behaviors
- Examples of Using Basic Motion Behaviors
- Parameter Behaviors
- Examples of Using Parameter Behaviors
- Audio, Camera, Motion Tracking, Particles, Replicator, Shape, and Text Behaviors
- Retiming Behaviors
- Retiming Behaviors Versus Timing Controls in the Inspector
- Simulation Behaviors
- Examples of Using Simulation Behaviors
- Behavior Examples
- Keyframes and Curves
- Using Text
- Using Text in Motion
- Using Text as Particle and Replicator Source Objects
- Setting Layer Duration Preferences
- Working with Text
- About Fonts
- Using the Text Tools
- Editing Text in the Inspector
- Using Text Animation and Text Sequence Behaviors
- Using Other Behaviors With Text
- Using Behaviors to Animate Text in 3D
- Animating Text with Keyframes
- Using LiveFonts
- Using Text in Motion
- Working with Particles
- Using the Replicator
- The Difference Between a Replicator and a Particle System
- Anatomy of a Replicator
- Using the Replicator
- Using Replicators in 3D
- Applying Masks to 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
- About Rasterization
- Blur Filters
- Blur Filters Without the Mix Parameter
- 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
- The Difference Between Shapes, Paint Strokes, and Masks
- Shape and Mask Drawing Tools
- Creating and Editing Shapes
- Illustrating Using the Shape Tools
- Shape Parameters in the Inspector
- Animating Shapes
- Saving Shapes and Shape Styles
- Masking Layers to Create Transparency
- Applying Image Masks to a Layer
- Using Masks to Aid Keying Effects
- Manipulating Alpha Channels Using Filters
- Working with Audio
- Exporting Motion Projects
- Keyboard Shortcuts
- Video and File Formats
- Supported File Formats
- Standard Definition Versus 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
- Working with FinalCutPro
- Using Motion with FinalCutPro
- Using Motion Templates in FinalCutPro
- Using Gestures
- Using Motion and After Effects
- Index
Chapter 12 Using Shapes and Masks 1097
Each mask’s blend mode determines whether the mask adds to, subtracts from, or
replaces a layer’s previously existing alpha channel. Additionally, blend modes affect
how masks interact with one another. Ultimately, every mask applied to a layer
combines according to the specified blend modes to create that layer’s final alpha
channel. Mask Blend Modes can be changed at any time.
Blend mode operations are also determined by the order in which each mask appears
in the Layers tab, particularly with the Replace and Intersect modes. For example, a
mask set to the Intersect mode masks out all other regions of a layer that do not
overlap it. A mask set to Intersect affects all masks nested underneath it. Masks added
above it are unaffected by this behavior.
Masks That Add and Subtract
New masks always default to the Add blend mode, allowing you to add to an existing
alpha channel without cropping what’s already there. Once you’ve drawn the first
mask, you may need to use additional masks set to Add or Subtract to refine it.
Masks set to Add create white areas in the alpha channel, making those parts of the
object opaque. This can be useful when masking several unconnected subjects in a
single image.
Note: To display the rest of a masked layer so you can trace it to create a second mask,
turn off the first mask in either the Layers tab or Timeline. The outline of the first mask
remains visible, even though it’s no longer affecting the layer’s transparency.
Result of first mask Additional masks added to the first