构造函数。
关键帧。
The key frame of the curve.
Cycle mode WrapMode when the sampling time exceeds the right end.
Loop mode WrapMode when the sampling time exceeds the left end.
Add a keyframe.
关键帧。
Calculate the curve interpolation at a given point in time.
时间。
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Describe a curve in which three times Hermite interpolation is used for each adjacent key frame.