Grass Valley Channel Composer v.1.6.2 - Manual (Page 66)

Channel Composer User Manual - Channel Composer User Manual- document version: 1.6.2 - 65
7.5 Controllers
A Controller automatically animates properties of an Object. Controllers can be an
alternative to keyframing. Controllers are ideal for animations that are endlessly repeating,
or animations that depend on real-time data.
Controllers are also described in an Example Project.
Available Controllers are:
• Anchor
• FromTo
• Link
• Oscillate
• Stack
All Objects’ properties can be animated.
Per frame, the Object property values for rendering are determined as follows:
Value0 = a value from keyframes or the default Template value.
Value(N, for the Nth Controller for the property, with N > 0 and Wet-dry in [0…1] =
(1 – Wet-dry) * Value(N - 1) + Wet-dry * Controller-value.
Example: property Opacity has a constant value 50 and a Controller Link with Wet-dry 25% and
Oscillate with Wet-dry 75%. The value for the Opacity property will be:
( 0.75 * 50 + 0.25 * Link-value ) * 0.25 + Oscillate-value * 0.75