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
858 Chapter 12 Using Shapes and Masks
Whatever the reason, you can easily combine multiple masks for any object by
adjusting each mask’s Mask Blend Mode parameter in the Inspector to create any
combination.
Each mask’s blend mode determines whether the mask adds to, subtracts from, or
replaces an object’s previously existing alpha channel. Additionally, blend modes affect
how masks interact with one another. Ultimately, every mask applied to an object
combines according to the specified blend modes to create that object’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 an object 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.
Mask Blend Mode pop-up menu
Result of first mask Additional masks added to the first
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