diff --git a/03-UnrealEngine/Editor/FBXAnimation导入逻辑.md b/03-UnrealEngine/Editor/FBXAnimation导入&导出逻辑.md
similarity index 61%
rename from 03-UnrealEngine/Editor/FBXAnimation导入逻辑.md
rename to 03-UnrealEngine/Editor/FBXAnimation导入&导出逻辑.md
index 9040e4e..52fe5a6 100644
--- a/03-UnrealEngine/Editor/FBXAnimation导入逻辑.md
+++ b/03-UnrealEngine/Editor/FBXAnimation导入&导出逻辑.md
@@ -111,4 +111,61 @@ UE5中FBXSDK相关函数调用方式：
 # 参考
 1. Interchange\\Runtime\\Source\\Parsers
 	1. InterchangeFbxParser.Build.cs
-	2. FbxInclude.h：FBXSDK头文件包含问题。
\ No newline at end of file
+	2. FbxInclude.h：FBXSDK头文件包含问题。
+
+# UE5中使用FBXSDK导出动画逻辑
+1. FFbxExporter::ExportSkeletalMeshToFbx => FFbxExporter::ExportAnimSequence => FFbxExporter::ExportAnimSequenceToFbx 
+2. FFbxExporter::CorrectAnimTrackInterpolation
+
+直接导出会有问题，所以UE在这里做了一步Correct：
+```c++
+// The curve code doesn't differentiate between angles and other data, so an interpolation from 179 to -179  
+// will cause the bone to rotate all the way around through 0 degrees. So here we make a second pass over the  
+// rotation tracks to convert the angles into a more interpolation-friendly format.
+FFbxExporter::CorrectAnimTrackInterpolation()
+{
+void FFbxExporter::CorrectAnimTrackInterpolation( TArray<FbxNode*>& BoneNodes, FbxAnimLayer* InAnimLayer )
+{
+	// Add the animation data to the bone nodes
+	for(int32 BoneIndex = 0; BoneIndex < BoneNodes.Num(); ++BoneIndex)
+	{
+		FbxNode* CurrentBoneNode = BoneNodes[BoneIndex];
+
+		// Fetch the AnimCurves
+		FbxAnimCurve* Curves[3];
+		Curves[0] = CurrentBoneNode->LclRotation.GetCurve(InAnimLayer, FBXSDK_CURVENODE_COMPONENT_X, true);
+		Curves[1] = CurrentBoneNode->LclRotation.GetCurve(InAnimLayer, FBXSDK_CURVENODE_COMPONENT_Y, true);
+		Curves[2] = CurrentBoneNode->LclRotation.GetCurve(InAnimLayer, FBXSDK_CURVENODE_COMPONENT_Z, true);
+
+		for(int32 CurveIndex = 0; CurveIndex < 3; ++CurveIndex)
+		{
+			FbxAnimCurve* CurrentCurve = Curves[CurveIndex];
+			CurrentCurve->KeyModifyBegin();
+
+			float CurrentAngleOffset = 0.f;
+			for(int32 KeyIndex = 1; KeyIndex < CurrentCurve->KeyGetCount(); ++KeyIndex)
+			{
+				float PreviousOutVal	= CurrentCurve->KeyGetValue( KeyIndex-1 );
+				float CurrentOutVal		= CurrentCurve->KeyGetValue( KeyIndex );
+
+				float DeltaAngle = (CurrentOutVal + CurrentAngleOffset) - PreviousOutVal;
+
+				if(DeltaAngle >= 180)
+				{
+					CurrentAngleOffset -= 360;
+				}
+				else if(DeltaAngle <= -180)
+				{
+					CurrentAngleOffset += 360;
+				}
+
+				CurrentOutVal += CurrentAngleOffset;
+
+				CurrentCurve->KeySetValue(KeyIndex, CurrentOutVal);
+			}
+
+			CurrentCurve->KeyModifyEnd();
+		}
+	}
+}
+```