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2026-05-19 13:42:41 +07:00

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// VRM4U Copyright (c) 2021-2024 Haruyoshi Yamamoto. This software is released under the MIT License.
#include "AnimNode_VrmVMC.h"
#include "AnimationRuntime.h"
#include "Animation/AnimInstanceProxy.h"
#include "Kismet/KismetSystemLibrary.h"
#include "Engine/Engine.h"
#include "DrawDebugHelpers.h"
#include "VRM4U_VMCSubsystem.h"
#include "VrmAssetListObject.h"
#include "VrmMetaObject.h"
#include "VrmUtil.h"
#include <algorithm>
/////////////////////////////////////////////////////
// FAnimNode_ModifyBone
FAnimNode_VrmVMC::FAnimNode_VrmVMC()
{
}
FAnimNode_VrmVMC::~FAnimNode_VrmVMC()
{
}
//void FAnimNode_VrmVMC::Update_AnyThread(const FAnimationUpdateContext& Context) {
// Super::Update_AnyThread(Context);
// //Context.GetDeltaTime();
//}
void FAnimNode_VrmVMC::Initialize_AnyThread(const FAnimationInitializeContext& Context) {
Super::Initialize_AnyThread(Context);
VrmMetaObject_Internal = const_cast<UVrmMetaObject*>(VrmMetaObject);
if (VrmMetaObject_Internal == nullptr && EnableAutoSearchMetaData) {
VrmAssetListObject_Internal = VRMUtil::GetAssetListObject(VRMGetSkinnedAsset(Context.AnimInstanceProxy->GetSkelMeshComponent()));
if (VrmAssetListObject_Internal) {
VrmMetaObject_Internal = VrmAssetListObject_Internal->VrmMetaObject;
}
}
UVRM4U_VMCSubsystem* subsystem = GEngine->GetEngineSubsystem<UVRM4U_VMCSubsystem>();
if (subsystem == nullptr) return;
{
auto *s = subsystem->FindOrAddServer(ServerAddress, Port);
if (s) {
s->bForceUpdate = bForceUpdate;
}
}
bCreateServer = true;
// init global reftransform
{
const auto Skeleton = Context.AnimInstanceProxy->GetSkeleton();
const auto RefSkeleton = Skeleton->GetReferenceSkeleton();
const auto& RefSkeletonTransform = RefSkeleton.GetRefBonePose();
RefSkeletonTransform_global = RefSkeletonTransform;
{
auto& g = RefSkeletonTransform_global;
for (int i = 0; i < RefSkeletonTransform.Num(); ++i) {
int parent = RefSkeleton.GetParentIndex(i);
if (parent < 0) continue;
g[i] = g[i] * g[parent];
}
}
}
}
void FAnimNode_VrmVMC::CacheBones_AnyThread(const FAnimationCacheBonesContext& Context) {
Super::CacheBones_AnyThread(Context);
}
void FAnimNode_VrmVMC::UpdateInternal(const FAnimationUpdateContext& Context){
Super::UpdateInternal(Context);
}
void FAnimNode_VrmVMC::GatherDebugData(FNodeDebugData& DebugData)
{
FString DebugLine = DebugData.GetNodeName(this);
DebugLine += "(";
AddDebugNodeData(DebugLine);
//DebugLine += FString::Printf(TEXT(" Target: %s)"), *BoneToModify.BoneName.ToString());
//DebugLine += FString::Printf(TEXT(" Target: %s)"), *BoneNameToModify.ToString());
DebugData.AddDebugItem(DebugLine);
ComponentPose.GatherDebugData(DebugData);
}
void FAnimNode_VrmVMC::EvaluateComponentPose_AnyThread(FComponentSpacePoseContext& Output) {
Super::EvaluateComponentPose_AnyThread(Output);
}
void FAnimNode_VrmVMC::EvaluateSkeletalControl_AnyThread(FComponentSpacePoseContext& Output, TArray<FBoneTransform>& OutBoneTransforms)
{
check(OutBoneTransforms.Num() == 0);
if (VrmMetaObject_Internal == nullptr) {
return;
}
UVRM4U_VMCSubsystem* subsystem = GEngine->GetEngineSubsystem<UVRM4U_VMCSubsystem>();
if (subsystem == nullptr) return;
const auto Skeleton = Output.AnimInstanceProxy->GetSkeleton();
const auto RefSkeleton = Output.AnimInstanceProxy->GetSkeleton()->GetReferenceSkeleton();
const FTransform ComponentTransform = Output.AnimInstanceProxy->GetComponentTransform();
const auto& RefSkeletonTransform = RefSkeleton.GetRefBonePose();
if (RefSkeletonTransform_global.Num() != RefSkeletonTransform.Num()) {
return;
}
TArray<int> boneIndexTable;
TArray<FBoneTransform> tmpOutTransform;
FVMCData VMCData;
if (subsystem->CopyVMCData(VMCData, ServerAddress, Port) == false) {
return;
}
if (VMCData.BoneData.Num() == 0 && VMCData.CurveData.Num() == 0) {
return;
}
if (bApplyPerfectSync) {
for (auto& c : VMCData.CurveData) {
if (c.Key.Contains(TEXT("BlendShape.")) == false) continue;
c.Key.RightChopInline(11); // [blendahape.]
}
}
TMap<FString, FTransform>& BoneTrans = VMCData.BoneData;
const auto &MorphList = Output.AnimInstanceProxy->GetSkelMeshComponent()->GetSkinnedAsset()->GetMorphTargets();
for (auto& c : VMCData.CurveData) {
#if UE_VERSION_OLDER_THAN(5,3,0)
{
SmartName::UID_Type NewUID;
FName NewName = *c.Key;
NewUID = Skeleton->GetUIDByName(USkeleton::AnimCurveMappingName, NewName);
Output.Curve.Set(NewUID, c.Value);
}
#else
auto m = MorphList.FindByPredicate([&c](const TObjectPtr<UMorphTarget> &m) {
FString s = c.Key;
if (m->GetName().Compare(s, ESearchCase::IgnoreCase)) {
return false;
}
return true;
});
if (m) {
Output.Curve.Set(*m->GetName(), c.Value);
} else {
Output.Curve.Set(*c.Key, c.Value);
}
#endif
}
{
bool bFirstBone = true;
for (const auto &t : VrmMetaObject_Internal->humanoidBoneTable) {
#if UE_VERSION_OLDER_THAN(4,27,0)
auto *tmpVal = BoneTrans.Find(t.Key.ToLower());
if (tmpVal == nullptr) continue;
auto modelBone = *tmpVal;
#else
auto filterList= BoneTrans.FilterByPredicate([&t](TPair<FString, FTransform> a) {
return a.Key.Compare(t.Key, ESearchCase::IgnoreCase) == 0;
}
);
if (filterList.Num() != 1) continue;
auto modelBone = filterList.begin()->Value;
#endif
int index = RefSkeleton.FindBoneIndex(*t.Value);
if (index < 0) continue;
FBoneTransform f(FCompactPoseBoneIndex(index), modelBone);
//f.Transform.SetRotation(FQuat::Identity);
if (bFirstBone) {
bFirstBone = false;
if (bUseRemoteCenterPos) {
auto v = f.Transform.GetLocation() * ModelRelativeScale;
f.Transform.SetTranslation(v);
} else {
auto v = RefSkeletonTransform[index].GetLocation();
f.Transform.SetTranslation(v);
}
// root bone
FTransform RootTrans;
for (auto& a : BoneTrans) {
if (a.Key.Compare(TEXT("root"), ESearchCase::IgnoreCase)) {
continue;
}
RootTrans = a.Value;
break;
}
if (index == 0) {
// hip == root
f.Transform.SetTranslation(f.Transform.GetLocation() + RootTrans.GetLocation());
} else {
// orig root
FBoneTransform bt(FCompactPoseBoneIndex(0), RootTrans);
tmpOutTransform.Add(bt);
boneIndexTable.Add(0);
}
} else {
FVector v = RefSkeletonTransform[index].GetLocation();
f.Transform.SetTranslation(v);
}
if (bIgnoreLocalRotation){
auto r_refg = RefSkeletonTransform_global[index].GetRotation();
auto r_ref = RefSkeletonTransform[index].GetRotation();
auto r_vmc = f.Transform.GetRotation();
auto r_dif = r_refg.Inverse() * r_vmc * r_refg;
f.Transform.SetRotation(r_ref * r_dif);
}
//f.Transform.SetTranslation(RefSkeletonTransform[index].GetLocation());
tmpOutTransform.Add(f);
boneIndexTable.Add(index);
}
// bone hierarchy
for (int i = 1; i < tmpOutTransform.Num(); ++i) {
int parentBoneIndex = RefSkeleton.GetParentIndex(boneIndexTable[i]);
int parentInTable = boneIndexTable.Find(parentBoneIndex);
for (int j = 0; j < 1000; ++j) {
if (parentInTable >= 0) {
break;
}
if (parentBoneIndex < 0) break;
// add outtransform with ref bone
FBoneTransform f(FCompactPoseBoneIndex(parentBoneIndex), RefSkeletonTransform[parentBoneIndex]);
tmpOutTransform.Add(f);
boneIndexTable.Add(parentBoneIndex);
parentBoneIndex = RefSkeleton.GetParentIndex(parentBoneIndex);
parentInTable = boneIndexTable.Find(parentBoneIndex);
}
}
// sort
tmpOutTransform.Sort(FCompareBoneTransformIndex());
boneIndexTable.Sort();
}
for (int i = 0; i < tmpOutTransform.Num(); ++i) {
auto& a = tmpOutTransform[i];
int parentBoneIndex = RefSkeleton.GetParentIndex(boneIndexTable[i]);
int parentInHandTable = boneIndexTable.Find(parentBoneIndex);
if (parentInHandTable >= 0) {
a.Transform *= tmpOutTransform[parentInHandTable].Transform;
} else {
// root
auto BoneSpace = EBoneControlSpace::BCS_ParentBoneSpace;
FAnimationRuntime::ConvertBoneSpaceTransformToCS(ComponentTransform, Output.Pose, a.Transform, a.BoneIndex, BoneSpace);
}
OutBoneTransforms.Add(a);
}
}
bool FAnimNode_VrmVMC::IsValidToEvaluate(const USkeleton* Skeleton, const FBoneContainer& RequiredBones)
{
// if both bones are valid
//return (BoneToModify.IsValidToEvaluate(RequiredBones));
return true;
}
void FAnimNode_VrmVMC::InitializeBoneReferences(const FBoneContainer& RequiredBones)
{
//BoneToModify.Initialize(RequiredBones);
}
void FAnimNode_VrmVMC::ConditionalDebugDraw(FPrimitiveDrawInterface* PDI, USkeletalMeshComponent* PreviewSkelMeshComp, bool bPreviewForeground) const
{
#if WITH_EDITOR
if (VrmMetaObject_Internal == nullptr || PreviewSkelMeshComp == nullptr) {
return;
}
if (PreviewSkelMeshComp->GetWorld() == nullptr) {
return;
}
ESceneDepthPriorityGroup Priority = SDPG_World;
if (bPreviewForeground) Priority = SDPG_Foreground;
#endif
}