You can set a positive bias to create slack
after a keyframe. Let??™s say your fire truck is speeding around a corner. Add bias to
that keyframe, and it will slide around that corner. A negative bias creates slack
before a keyframe. You could use this for, say, a racecar before it goes into a sharp
turn. To set bias using the Move TCB tool, right-click and drag with the right
mouse button in Layout for an item??™s desired keyframe to change Bias.
Keyframe Rules for Thought
There are a few more things you should know about keyframing in LightWave v9. A common
misunderstanding with keyframes is that the more of them you have, the more control
you will have in a scene. Not so! You see, when you create keyframes in LightWave,
you??™re creating curves. Perhaps you??™ve worked in an illustration program like Adobe
Illustrator??”you??™ll know that a smooth curve can be made with as little as three points.
But if you were to add more points, or in this case, more keyframes, it is that much harder
to control timing and fluidity in your motions.
A good rule of thumb to use when setting keyframes is to start by setting your object??™s first
and last keyframes, and then setting any that fall in between.
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