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 33
Zoom Layer
Moves a camera to the position of a target object’s anchor point. Once the camera
reaches the object’s anchor point, the angle of view changes while offsetting the
camera’s position. This behavior also allows you to animate the camera’s angle of view
during the camera’s movement, based on the behavior’s Transition value. This behavior
is best used with a Framing camera.
Parameters in the Inspector
Object: An image well to set the target of the camera’s movement. Drag an object
from the Layers list into the well.
Transition: A slider and value slider that determine how far into the behavior the
camera stops moving and the camera’s Angle of View parameter begins to animate
instead.
If Transition is set to 50% in a Zoom Layer behavior that has a length of 300 frames, the
camera move takes 150 frames to arrive at the position of the target object and then
stops moving for the duration of the behavior, and the camera’s Angle of View
parameter animates over the rest of the duration. If Transition is set to 100%, the
camera move takes the full 300 frames to arrive at the position of the target object, and
the camera’s angle of view does not animate. If the Zoom Layer behavior’s duration is
100 frames, and Transition is set to 50%, the camera move takes 50 frames to arrive at
the position of the target object.
Speed: A pop-up menu that sets the type of interpolation used for the rotation. The
value can be set to Constant, Ease In, Ease Out, Ease Both, Accelerate, or Decelerate.
Zoom: A slider and value slider that set a proportional value used to modify the
camera’s Angle of View parameter. A nonzero value determines how much the angle of
view (and thus perspective) changes relative to the camera’s initial angle of view. A zero
value for Zoom leaves the Angle of View parameter unchanged.
HUD Controls
The HUD contains the same controls as the Inspector.