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#jira UE-154036 #rnx #preflight 628e6445f622d972b58cb184 [CL 20368031 by halfdan ingvarsson in ue5-main branch]
49 lines
2.1 KiB
C++
49 lines
2.1 KiB
C++
// Copyright Epic Games, Inc. All Rights Reserved.
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#include "SkeletalMeshOperations.h"
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#include "SkeletalMeshAttributes.h"
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#include "BoneWeights.h"
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DEFINE_LOG_CATEGORY(LogSkeletalMeshOperations);
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#define LOCTEXT_NAMESPACE "SkeletalMeshOperations"
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//Add specific skeletal mesh descriptions implementation here
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void FSkeletalMeshOperations::AppendSkinWeight(const FMeshDescription& SourceMesh, FMeshDescription& TargetMesh, FSkeletalMeshAppendSettings& AppendSettings)
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{
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TRACE_CPUPROFILER_EVENT_SCOPE_STR("FSkeletalMeshOperations::AppendSkinWeight");
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FSkeletalMeshConstAttributes SourceSkeletalMeshAttributes(SourceMesh);
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FSkeletalMeshAttributes TargetSkeletalMeshAttributes(TargetMesh);
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TargetSkeletalMeshAttributes.Register();
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FSkinWeightsVertexAttributesConstRef SourceVertexSkinWeights = SourceSkeletalMeshAttributes.GetVertexSkinWeights();
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FSkinWeightsVertexAttributesRef TargetVertexSkinWeights = TargetSkeletalMeshAttributes.GetVertexSkinWeights();
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TargetMesh.SuspendVertexIndexing();
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for (const FVertexID SourceVertexID : SourceMesh.Vertices().GetElementIDs())
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{
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const FVertexID TargetVertexID = FVertexID(AppendSettings.SourceVertexIDOffset + SourceVertexID.GetValue());
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FVertexBoneWeightsConst SourceBoneWeights = SourceVertexSkinWeights.Get(SourceVertexID);
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TArray<UE::AnimationCore::FBoneWeight> TargetBoneWeights;
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const int32 InfluenceCount = SourceBoneWeights.Num();
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for (int32 InfluenceIndex = 0; InfluenceIndex < InfluenceCount; ++InfluenceIndex)
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{
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const FBoneIndexType SourceBoneIndex = SourceBoneWeights[InfluenceIndex].GetBoneIndex();
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if(AppendSettings.SourceRemapBoneIndex.IsValidIndex(SourceBoneIndex))
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{
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UE::AnimationCore::FBoneWeight& TargetBoneWeight = TargetBoneWeights.AddDefaulted_GetRef();
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TargetBoneWeight.SetBoneIndex(AppendSettings.SourceRemapBoneIndex[SourceBoneIndex]);
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TargetBoneWeight.SetRawWeight(SourceBoneWeights[InfluenceIndex].GetRawWeight());
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}
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}
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TargetVertexSkinWeights.Set(TargetVertexID, TargetBoneWeights);
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}
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TargetMesh.ResumeVertexIndexing();
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}
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#undef LOCTEXT_NAMESPACE |