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 821
Bezier splines are good for drawing shapes for illustration. The controls used to
manipulate Bezier splines are similar to those found in many other drawing and
compositing applications, so they may already be familiar to you. Bezier controls lend
themselves to the creation of precise, detailed shapes. Tangent handles adjust the
curvature of the shape on either side of the control point, and this defines the surface
of the shape.
B-Splines can also be used to draw shapes, but unlike Bezier controls, B-Splines are
manipulated using only points—there are no tangent handles. Furthermore, the points
themselves do not lie on the surface of the shape. Instead, each B-Spline control point
is offset from the shape’s surface, pulling that section of the shape towards itself as if it
was a magnet, in order to create a curve. By combining the influence of multiple B-
Spline points, you can create different curves. B-Splines are extremely smooth—by
default, there are no sharp angles in B-Spline shapes, although you can create sharper
curves, if necessary.
Since B-Spline controls are so simple, they’re easy to animate and manipulate. The tools
you use for a particular task are largely a matter of personal preference.
Drawing Masks and Shapes Using Bezier Splines
This section describes how to draw a Bezier shape from scratch. These methods are
identical whether you use the shape or masking tools. This section focuses on drawing
shapes. For more information on drawing masks, see “Masking Objects to Create
Transparency” on page 851.
Bezier control point
Tangent handles
B-Spline control point
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