vault backup: 2023-09-05 14:08:09

03-UnrealEngine/Animation/UE5商城动画重定向插件笔记.md

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+---
+title: UE5商城动画重定向插件笔记
+date: 2023-09-05 12:02:29
+excerpt: 
+tags:
+  - AnimationRetargeting
+rating: ⭐
+---
+# MixamoAnimationRetargeting
+主要逻辑位于：FMixamoSkeletonRetargeter
+- UE4MannequinToMixamo_BoneNamesMapping
+- UE4MannequinToMixamo_ChainNamesMapping
+- UE5MannequinToMixamo_BoneNamesMapping
+- UE5MannequinToMixamo_ChainNamesMapping
+
+重定向逻辑位于：FMixamoSkeletonRetargeter::Retarget()
+
+## 判断骨骼格式
+```c++
+bool FSkeletonMatcher::IsMatching(const USkeleton* Skeleton) const  
+{  
+    // No Skeleton, No matching...  
+    if (Skeleton == nullptr)  
+    {       return false;  
+    }  
+    const int32 NumExpectedBones = BoneNames.Num();  
+    int32 nMatchingBones = 0;  
+    const FReferenceSkeleton & SkeletonRefSkeleton = Skeleton->GetReferenceSkeleton();  
+    for (int32 i = 0; i < NumExpectedBones; ++i)  
+    {       const int32 BoneIndex = SkeletonRefSkeleton.FindBoneIndex(BoneNames[i]);  
+       if (BoneIndex != INDEX_NONE)  
+       {          ++nMatchingBones;  
+       }    }    const float MatchedPercentage = float(nMatchingBones) / float(NumExpectedBones);  
+  
+    return MatchedPercentage >= MinimumMatchingPerc;  
+}
+```