动作

在Blender中动画化物体和属性时，动作数据块将会记录和保存动画相关数据。和Blender中其它概念类似，动作是以数据块形式存储的。

../_images/animation_actions_data3.png — 动作。

当通过使用关键帧改变物体位置动画化物体时，动画会被储存到动作中。

Each property has a channel which it is recorded to, for example, Cube.location.x is recorded to Channel X Location. The X location and Y location properties can be shared across multiple objects, if all objects have X location and Y location properties beneath them.

../_images/animation_actions_keyframes.png — Graph Editor. Each channel has an F-curve represented by the lines between the keyframes.

动作: 记录和保存动画数据。
组: 通道群组。
通道: 记录单一属性。
函数曲线: 函数曲线用于对关键帧间的变化进行插值。
关键帧: 关键帧用于设置绑定到某个时间点上的属性值。

如何使用动作

../_images/animation_actions_create.png — 动作数据块菜单。

当您第一次通过添加关键帧动画化一个物体时，Blender为该数据创建一个动作来记录这些数据。

Actions can be managed with the Action data-block menu in the Dope Sheet Action Editor header, or the Sidebar region of the NLA Editor.

如果要为同一对象创建多个动作，请按每个动作的屏蔽按钮。这将使动作成为 伪用户 并使Blender保存未链接的动作。

物体在同一时间只能编辑一个动作数据块。 NLA编辑器用于将多个动作数据混合在一起。

烘焙动作

参考

编辑器: 3D 视图
模式: 物体和姿态模式
菜单: 3D视图 ‣ 物体/姿态 ‣ 动画 ‣ 烘焙动作...

The final motion of objects or bones depends not only on the keyframed animation, but also on any active F-curve modifiers, drivers, and constraints. On each frame of all the scene's frames, the Bake Action tool computes the final animation of the selected objects or bones with all those modifiers, drivers, and constraints applied, and keyframes the result.

This can be useful for adding deviation to a cyclic action like a Walk Cycle, or to create a keyframe animation created from drivers or constraints.

手动帧范围

../_images/animation_actions_range.png — Actions with and without a Manual Frame Range in Dope Sheet.

It is possible to manually specify the intended useful frame range of an action via a panel available in the Dope Sheet or the NLA Editor when a channel or NLA track is selected.

手动帧范围

Specifies if the manual frame range should be used, and the frame values.

When the range is set, it is used instead of the actual range occupied by key frames when adding a new track based on the action to NLA. It can also be used by exporters to determine the range of frames to export.

The range is displayed in the background of the editor as diagonal hash fill, to distinguish it from the solid fill of the current playback range.

The frame values are most commonly expected to be integers, but can be fractional.

Cyclic Animation

Specifies that the action is intended to be cyclic over the specified range. The first and last frames of the range should represent the same pose of the cycle one loop apart, i.e. the range should include the duplicated initial key of the loop.

Note

This option signifies intent and does not make the action cycle on its own. However, if Cycle-Aware Keying is enabled, it will automatically enable cyclic extrapolation and set up the loop period for curves newly added to the action.