auto key

基本解释

Turn on Auto Key.
开启自动关键帧。
The example in Listing 1 creates a new author and returns the corresponding auto-generated key.
清单 1 中的示例创建一个新的作者并返回对应的自动产生的关键字。
Create a dummy, and add a Path Constraint to make it follow the same spline, but now (with Auto Key on) go to frame 0 and type in 10% in the %Along Path field.
创建一个虚拟体，添加一个路径约束，让它跟着同一条曲线运动，但是现在（保持自动关键帧打开）回到第0帧，将百分比调到10%。

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