3
Table Of Contents
- Motion 3 Supplemental Documentation
- Contents
- 3D Compositing
- Motion Tracking
- About Motion Tracking
- How a Tracker Works
- Motion Tracking Behaviors
- Shape Track Points Behavior
- Track Parameter Behavior
- Motion Tracking Workflows
- Adjusting the Onscreen Trackers
- Strategies for Better Tracking
- Finding a Good Reference Pattern
- Manually Coaxing Your Track
- Manually Modifying Tracks
- Converting Tracks to Keyframes
- When Good Tracks Go Bad
- Smoothing Tracking Keyframe Curves
- Preserving Image Quality
- Asking Motion for a Hint
- Giving Motion a Hint
- Tracking Images with Perspective, Scale, or Rotational Shifts
- Tracking Obscured or Off-Frame Points
- Tracking Retimed Footage
- Troubleshooting Stabilizing Effects
- Removing Black Borders Introduced by Stabilizing
- Some General Guidelines
- Tracking and Groups
- Saving Tracks
- Motion Tracking Behavior Parameters
Chapter 1 3D Compositing 27
Camera Type: A pop-up menu that sets the type of camera used. There are two
options: Framing (the default value) and Viewpoint. A Framing camera has its origin at
the focal plane. The focal plane of a camera is a plane located at a distance equal to the
camera’s focal distance along its local Z axis (or line of sight) and oriented
perpendicular to the camera’s local Z axis. A Viewpoint camera has its origin at its center
of projection.
∏ Tip: The position of a Framing camera’s origin makes it useful for orbiting moves.
Rotating the camera causes it to orbit, whereas rotating a Viewpoint camera causes it
to pivot.
Angle of View: A slider and value slider that set the angle of view of the camera, which
is the number of degrees in which the camera sees. Value can be selected from 0 to 180
degrees.
Framing camera
Camera’s focal plane
Camera’s angle of view
Viewpoint camera origin and
center of projection
Framing camera origin
Camera’s angle of view