For
example, if you change a spotlight??™s heading rotation between frame 0 and frame
30, an Oscillate post-behavior will swing it back to its original position in frames
31-60, then repeat the whole back-and-forth process until your scene ends.
?—? Offset Repeat, which is similar to Repeat but offsets the difference between the
first and last keyframe values.
?—? Linear, which keeps the curve angle linearly consistent with the starting or
ending angle.
Inside LightWave v9 260
Chapter 6 Principles in Motion 261
The Curves tab also is home to Spline controls. Earlier in the keyframing section of this
chapter, we discussed how to use the Move TCB tool in Layout to adjust Tension,
Continuity, and Bias (TCB). Remember, LightWave??™s motion paths (the channels that
you??™re editing in the Graph Editor) are curves. Using TCB is one way to work with these
curves, but LightWave offers more control than simple TCB splines.
Spline Controls
When an item or its elements are put into motion
in LightWave, it instantly has a curve. The Graph
Editor gives you control over the individual channels
of an item??™s motion as you??™ve seen throughout
this chapter.
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