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03-UnrealEngine/Sequence/Sequence Runtime Binding.md

@@ -51,4 +51,28 @@ UMovieSceneSequenceExtensions methods are not exported. They don’t have the PL
 - 自定义Track
 	- https://zhuanlan.zhihu.com/p/396353973
 	- https://zhuanlan.zhihu.com/p/414179358
-	- https://zhuanlan.zhihu.com/p/413151867
+	- https://zhuanlan.zhihu.com/p/413151867
+
+## 继承关系
+UMovieSceneSignedObject -> UObject
+
+### UMovieSceneSignedObject
+子类有UMovieScene、UMovieSceneSequence、UMovieSceneTrack、UMovieSceneSection。
+定义： 
+- FGuid Signature：用于确定Object身份，以便于绑定。
+- FOnSignatureChanged OnSignatureChangedEvent：ChangedEvent。
+
+### UMovieSceneSection
+#### UMovieSceneSkeletalAnimationSection
+
+
+### UMovieSceneTrack
+#### UMovieSceneSkeletalAnimationTrack
+- `TArray<TObjectPtr<UMovieSceneSection>> AnimationSections`：存储所有动画Section。
+- FMovieSceneSkeletalAnimRootMotionTrackParams RootMotionParams：RootMotion控制。
+
+编辑器代码：**FSkeletalAnimationTrackEditor**
+
+## Sequence绑定机制笔记
+
+### UMovieSceneSequence