Ross Synergy 100 MD, Operator'S Manual

Page: 286 / 402

17–10 • Squeeze & Tease MD Sequences and Wipes Synergy 100 MD Operator’s Manual (v7.2 MD-S100)
Modifying Spline Motion
Spline motion differs from Smooth and Linear motion in that the image does not follow a straight
line between keyframes. Rather, the image follows a curving (spline) path that smoothly takes it from
keyframe to keyframe.
This section includes an overview of the spline path, the three parameters of spline motion, and how
to adjust these parameters.
Spline Motion Overview
The figure below shows three keyframes and two sample paths that an image would take as it moved
between them: a spline path and a linear, or smooth, path.
Spline Path through Keyframes
Notice that the spline path between keyframes is smooth and continuous with no abrupt direction
changes. The linear and smooth path is a series of straight lines between keyframes resulting in abrupt
directional changes at the keyframes. Getting fluid motion between keyframes requires using spline
motion.
The initial spline path between keyframes is determined by the switcher based on where you place
your keyframes. You can control this path to a certain extent by modifying three parameters:
Tension ,
Bias , and Continuity .
Tension
Tension affects how tight or loose the curve is. Lower tension gives a looser, more sweeping curve
while tightening the tension brings the curve closer to a straight line. The figure below shows
examples of various tension effects on a standard spline path.
Spline
Linear and Smooth
Keyframe 2
Keyframe 1 Keyframe 3