Grass Valley Karrera Video Production Center v.4.0 - Manual (Page 106)

106 KARRERA — User Manual
Section 3 — Video Mix/Effects
Motion Decay Mode
Causes motion in the image to leave a blurred remnant in the area from
which it was removed (
Figure 54 on page 105 ).
Appearance button — displays the “Pic” or Picture Decay value from the soft
knob data pad.
Wind button — displays the Direction and Velocity (speed) values from the
soft knob data pads.
Loop button —
• ON — starts the recursive effect
• OFF — stops the recursive effect and returns to live video
Keyframe Reset button — used to control when images are frozen, only avail-
able when the Keyframe mode button is selected as the Strobe Type.
• ON — A keyframe triggers a reset, followed by a new single strobe. It
resets that loop by creating a new frozen image at each keyframe that
has the
Keyframe Reset button on.
• OFF — does not change the frozen image at each keyframe
Force Strobe — When an effect passes over or stops on a keyframe, a single
strobe event is triggered. While the effect sits on a keyframe with keyframe-
strobe on, no additional events are triggered. The "history" of the prior
single event is discarded, and a single strobe is triggered again.
• ON — accumulates a field/frame of video within the Output Recursive
loop.
• OFF — No action is taken.
Freeze Mode
Freeze is used to freeze and modify an image using the soft knobs for play-
back (
Figure 54 on page 105 ).
Soft knob parameters are also displayed in the Appearance data pad:
Picture Decay — causes the frozen image in the Output Recursive to fade
away evenly over time.
Note Additive effect with Star Decay.
Star Decay — causes random pixels of the frozen image in the Output
Recursive to fade away over time.
Note Additive effect with Picture Decay.
Period — defines the number of frames in a Strobe Cycle. Period is only
available when Time is selected as the Strobe Type.