Kayak — User Manual 77
3-D Digital Effects Concepts
Tension Control
In the example below, the keyframes comprise a right angle, so the
TENSION control operates on a 45° line drawn through the keyframe. This
line is referred to as the Tension Vector and is parallel to a line drawn
between adjacent keyframes (Figure 47).
The TENSION soft knob controls the length of the tension vector. The
length of the tension vector is inversely proportional to its parameter value.
For example, at a Tension setting of 0 (zero), this imaginary line extends an
equal distance into and out of the keyframe, and the path through the
middle keyframe is curved. The unmodified KF2 is said to have a correc-
tion value of 0.0.
Figure 47. Tension Control Setting Zero
In the example below, the TENSION control is increased to 1.0, so that the
Tension vector is shortened to non-existence through KF2 (Figure 48). The
path enters and leaves the middle keyframe in a straight line as it takes on
an S-Linear motion; decelerating as it enters the middle keyframe and
accelerating as it leaves.
Tension = 0.0
KF1 KF2
KF3
Tension
Vector
0721_06_47_r0
To Next Page
Loading...
