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A-2
Appendix A — Keyframe Path Control
Path Vectors
With respect to the path between keyframes, each keyframe is
made up of three vector parameters as shown below. The soft
knob controls act on these vector parameters to adjust the path
into (entry) and out of (exit) the keyframe. The path through KF2
is parallel with an imaginary line drawn between KF1 and KF2.
KF1
KF2
KF3
Tension Vector
+
–
Bias
Continuity Vectors