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102 lines
3.6 KiB
C++
102 lines
3.6 KiB
C++
// Copyright 1998-2015 Epic Games, Inc. All Rights Reserved.
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#include "AnimGraphRuntimePrivatePCH.h"
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#include "AnimNodes/AnimNode_CopyPoseFromMesh.h"
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/////////////////////////////////////////////////////
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// FAnimNode_CopyPoseFromMesh
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FAnimNode_CopyPoseFromMesh::FAnimNode_CopyPoseFromMesh()
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{
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}
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void FAnimNode_CopyPoseFromMesh::Initialize(const FAnimationInitializeContext& Context)
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{
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ReinitializeMeshComponent(Context.AnimInstance);
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}
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void FAnimNode_CopyPoseFromMesh::CacheBones(const FAnimationCacheBonesContext& Context)
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{
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}
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void FAnimNode_CopyPoseFromMesh::Update(const FAnimationUpdateContext& Context)
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{
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EvaluateGraphExposedInputs.Execute(Context);
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if (CurrentlyUsedSourceMeshComponent.IsValid() && CurrentlyUsedSourceMeshComponent.Get() != SourceMeshComponent)
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{
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ReinitializeMeshComponent(Context.AnimInstance);
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}
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else if (!CurrentlyUsedSourceMeshComponent.IsValid() && SourceMeshComponent)
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{
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ReinitializeMeshComponent(Context.AnimInstance);
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}
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}
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void FAnimNode_CopyPoseFromMesh::Evaluate(FPoseContext& Output)
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{
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FCompactPose& OutPose = Output.Pose;
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OutPose.ResetToRefPose();
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if (CurrentlyUsedSourceMeshComponent.IsValid() && CurrentlyUsedSourceMeshComponent.Get()->SkeletalMesh)
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{
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const FBoneContainer& RequiredBones = OutPose.GetBoneContainer();
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for(FCompactPoseBoneIndex PoseBoneIndex : OutPose.ForEachBoneIndex())
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{
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const int32& SkeletonBoneIndex = RequiredBones.GetSkeletonIndex(PoseBoneIndex);
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const int32* Value = BoneMapToSource.Find(SkeletonBoneIndex);
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if(Value && *Value!=INDEX_NONE)
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{
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const int32 SourceBoneIndex = *Value;
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const int32 ParentIndex = CurrentlyUsedSourceMeshComponent.Get()->SkeletalMesh->RefSkeleton.GetParentIndex(SourceBoneIndex);
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const FCompactPoseBoneIndex MyParentIndex = RequiredBones.GetParentBoneIndex(PoseBoneIndex);
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// only apply if I also have parent, otherwise, it should apply the space bases
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if (ParentIndex != INDEX_NONE && MyParentIndex != INDEX_NONE)
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{
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const FTransform& ParentTransform = CurrentlyUsedSourceMeshComponent.Get()->GetSpaceBases()[ParentIndex];
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const FTransform& ChildTransform = CurrentlyUsedSourceMeshComponent.Get()->GetSpaceBases()[SourceBoneIndex];
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OutPose[PoseBoneIndex] = ChildTransform.GetRelativeTransform(ParentTransform);
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}
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else
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{
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OutPose[PoseBoneIndex] = CurrentlyUsedSourceMeshComponent.Get()->GetSpaceBases()[SourceBoneIndex];
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}
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}
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}
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}
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}
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void FAnimNode_CopyPoseFromMesh::GatherDebugData(FNodeDebugData& DebugData)
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{
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}
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void FAnimNode_CopyPoseFromMesh::ReinitializeMeshComponent(UAnimInstance* AnimInstance)
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{
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CurrentlyUsedSourceMeshComponent = SourceMeshComponent;
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BoneMapToSource.Reset();
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if (SourceMeshComponent && SourceMeshComponent->SkeletalMesh && !SourceMeshComponent->IsPendingKill())
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{
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USkeletalMeshComponent* TargetMeshComponent = AnimInstance->GetSkelMeshComponent();
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if (TargetMeshComponent)
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{
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USkeletalMesh* SourceSkelMesh = SourceMeshComponent->SkeletalMesh;
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USkeletalMesh* TargetSkelMesh = TargetMeshComponent->SkeletalMesh;
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if (SourceSkelMesh == TargetSkelMesh)
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{
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for(int32 ComponentSpaceBoneId = 0; ComponentSpaceBoneId < SourceSkelMesh->RefSkeleton.GetNum(); ++ComponentSpaceBoneId)
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{
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BoneMapToSource.Add(ComponentSpaceBoneId, ComponentSpaceBoneId);
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}
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}
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else
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{
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for (int32 ComponentSpaceBoneId=0; ComponentSpaceBoneId<TargetSkelMesh->RefSkeleton.GetNum(); ++ComponentSpaceBoneId)
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{
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FName BoneName = TargetSkelMesh->RefSkeleton.GetBoneName(ComponentSpaceBoneId);
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BoneMapToSource.Add(ComponentSpaceBoneId, SourceSkelMesh->RefSkeleton.FindBoneIndex(BoneName));
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}
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}
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}
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}
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} |