Grass Valley Kayenne XL Package v.7.0.4 - Manual (Page 69)

Kayenne XL Package — User Manual 67
3-D Digital Effects Concepts
Path Control
Paths
Keyframes specify parameter values at specific times in an effect. Most of
the duration of an effect, however, occurs between these keyframes. The
Kayak HD system interpolates parameter values between keyframes (in-
betweening).
The trajectory, or path, a manipulated picture travels between keyframes is
determined by how these in-between values are interpolated. The system
offers you several path controls (
Figure 34 on page 67 ):
• HOLD — No interpolation. Keyframes hold their values for their dura-
tions, then change all at once for the next keyframe.
• LINEAR — Applies a linear interpolation between keyframes; no accel-
eration or deceleration is applied. Movement is mechanical with a con-
stant velocity.
• S-LINEAR — Applies a linear or straight line motion between keyframes,
with acceleration and deceleration applied at the beginning and end of
each keyframe. At each S-Linear keyframe the motion is stopped for
two fields.
• CURVE — This selection causes a rounded path through the keyframe.
Paths are user adjustable with path modifiers (tension, continuity, and
bias) described below.
Figure 34. Path Types
Hold Linear
0721_06_45_r1
S-Linear Curve
KF1
Slow
Fast
Fast
Stop
Constant
Speed
Slow
Slow
Slow Fast
Fast
Slow
KF2
KF3
KF1
KF2
KF3
KF 1
KF2
KF3
KF1
KF2
KF3