Euler Filter
欧拉滤镜
Cinema 4D has stocked up in the never-ending fight against gimbal lock. In addition to the coordinate Order, Freeze All and the Quaternion Rotation option, it now has the Euler Filter in its arsenal.
C4D已经储备了永无休止的对付万向节锁的战斗。除了坐标顺序，冻结所有和四元数旋转选项，它现在有欧拉过滤器在其兵工厂。
Applying the Euler Filter - which only affects animated R.P, R.H and R.B rotation coordinates - is always recommended when such effects are present in the Timeline (which is often the case when importing motion capture data or baked animations):
应用欧拉过滤器——它只影响动画 R.P，R.H 和 R.B 的旋转坐标——当这些效果出现在时间轴中时(导入运动捕捉数据或烘焙动画时经常出现这种情况) ，总是被推荐使用:
The Euler Filter removes unsightly
jumps. 欧拉过滤器可以消除难看的跳跃
These are spontaneous 360° jumps (in the following referred to as gimbal lock effect) from one key to the next resulting from the gimbal lock effect. These effects are often not visible in the Viewport when the animation is played. But by the time motion blur is added, for example, they become visible and produce unsightly results.
这些都是自发的360 ° 跳跃(在以下被称为万向节锁效果)从一个键到下一个由万向节锁效果产生。在 Viewport 播放动画时，这些效果通常是看不到的。但是当运动模糊被添加进去的时候，例如，它们变得可见并产生难看的结果。
The Euler Filter removes these jumps for existing keyframe animations and creates a lasting uniform, consistent change in keyframe values.
欧拉过滤器消除了现有关键帧动画的这些跳跃，并在关键帧值中创建一个持久的统一，一致的变化。
使用
If you select the complete object in the Timeline (the top Rotation object in the image above), all rotation Tracks will be selected and the Euler Filter command can then be called up. The command will be grayed out if only a single rotation Track is selected!
如果你在时间轴中选择完整的物体(上图中顶部的旋转物体) ，所有的旋转轨道都会被选中，然后调用 Euler Filter 命令。如果只选择一个旋转轨道，命令将变成灰色！
设置
由/至
Use these values to define the temporal range within which the Eula Filter should affect the Tracks. In most cases, the default setting that includes the entire animation can be used. You can also filter a custom range. Make sure that no changes are made outside of the defined range, which might result in the gimbal lock effect occurring prior to or after this range.
使用这些值来定义 Eula 过滤器应该影响轨道的时间范围。在大多数情况下，可以使用包含整个动画的默认设置。您还可以筛选自定义范围。确保没有在规定范围之外的变化，这可能会导致万向节锁定效果发生在此范围之前或之后。
同步旋转
For each key on a rotation Track that the Euler Filter affects it simultaneously requires the keys for the remaining two rotation Tracks (=synchronized rotation).
对于旋转轨道上的每个键，如果欧拉过滤器同时影响它，则需要其余两个旋转轨道的键(= 同步旋转)。
If this option is enabled, missing Tracks and keys with constant, optimized values will be created. If this option is disabled, the filter will only affect regions that are already synchronized and will not create any new Tracks/keys.
如果启用此选项，将创建缺少带有常量的 Tracks 和 key 的优化值。如果禁用此选项，筛选器将只影响已经同步的区域，并且不会创建任何新的 tracks/key。
减少万向节锁定
If enabled, the gimbal lock effect will be eliminated. This option can be disabled, for example, to only create missing Tracks/keys with the enabled Synchronized Rotation option.
如果启用，万向节锁定效果将被消除。例如，可以禁用此选项，只使用启用的 Synchronized Rotation 选项创建缺少的 tracks/key。
调整切线
If enabled, an attempt will be made to adapt the tangents of modified keys (and their closest neighbors) to those of proceeding or following keys to smooth interpolation. If disabled, Auto Tangents (see Auto Tangents) will only affect modified keys.
如果启用，将尝试调整修改键(及其最近邻)的切线，以便进行或跟随键顺利插值。如果禁用，自动切线(见自动切线)将只影响修改键。