void FAnimationRuntime::BlendPosesTogetherPerBone(const TArray<FCompactPose>& SourcePoses, const TArray<FBlendedCurve>& SourceCurves, const UBlendSpaceBase* BlendSpace, const TArray<FBlendSampleData>& BlendSampleDataCache, /*out*/ FCompactPose& ResultPose, /*out*/ FBlendedCurve& ResultCurve)
{
check(SourcePoses.Num() > 0);
const TArray<FBoneIndexType> & RequiredBoneIndices = ResultPose.GetBoneContainer().GetBoneIndicesArray();
TArray<int32> PerBoneIndices;
PerBoneIndices.AddUninitialized(ResultPose.GetNumBones());
for (int32 BoneIndex = 0; BoneIndex < PerBoneIndices.Num(); ++BoneIndex)
{
PerBoneIndices[BoneIndex] = BlendSpace->GetPerBoneInterpolationIndex(RequiredBoneIndices[BoneIndex], ResultPose.GetBoneContainer());
}
BlendPosePerBone<ETransformBlendMode::Overwrite>(PerBoneIndices, BlendSampleDataCache[0], ResultPose, SourcePoses[0]);
for (int32 i = 1; i < SourcePoses.Num(); ++i)
{
BlendPosePerBone<ETransformBlendMode::Accumulate>(PerBoneIndices, BlendSampleDataCache[i], ResultPose, SourcePoses[i]);
}
// Ensure that all of the resulting rotations are normalized
ResultPose.NormalizeRotations();
if (SourceCurves.Num() > 0)
{
TArray<float> SourceWeights;
SourceWeights.AddUninitialized(BlendSampleDataCache.Num());
for (int32 CacheIndex=0; CacheIndex<BlendSampleDataCache.Num(); ++CacheIndex)
{
SourceWeights[CacheIndex] = BlendSampleDataCache[CacheIndex].TotalWeight;
}
BlendCurves(SourceCurves, SourceWeights, ResultCurve);
}
}
void FAnimationRuntime::AccumulateLocalSpaceAdditivePose(FCompactPose& BasePose, const FCompactPose& AdditivePose, FBlendedCurve& BaseCurve, const FBlendedCurve& AdditiveCurve, float Weight)
{
if (Weight > ZERO_ANIMWEIGHT_THRESH)
{
if (Weight >= (1.f - ZERO_ANIMWEIGHT_THRESH))
{
// fast path, no need to weight additive.
for (FCompactPoseBoneIndex BoneIndex : BasePose.ForEachBoneIndex())
{
BasePose[BoneIndex].Accumulate(AdditivePose[BoneIndex]);
}
}
else
{
// Slower path w/ weighting
const ScalarRegister VBlendWeight(Weight);
for (FCompactPoseBoneIndex BoneIndex : BasePose.ForEachBoneIndex())
{
// copy additive, because BlendFromIdentityAndAccumulate modifies it.
FTransform Additive = AdditivePose[BoneIndex];
FTransform::BlendFromIdentityAndAccumulate(BasePose[BoneIndex], Additive, VBlendWeight);
}
}
}
}
void FAnimationRuntime::FillWithRetargetBaseRefPose(FCompactPose& OutPose, const USkeletalMesh* Mesh)
{
// Copy Target Asset's ref pose.
if (Mesh)
{
for (FCompactPoseBoneIndex BoneIndex : OutPose.ForEachBoneIndex())
{
FMeshPoseBoneIndex PoseIndex = OutPose.GetBoneContainer().MakeMeshPoseIndex(BoneIndex);
OutPose[BoneIndex] = Mesh->RetargetBasePose[PoseIndex.GetInt()];
}
}
}
void FAnimationRuntime::ConvertMeshRotationPoseToLocalSpace(FCompactPose& Pose)
{
// Convert all rotations to mesh space
// only the root bone doesn't have a parent. So skip it to save a branch in the iteration.
for (FCompactPoseBoneIndex BoneIndex(Pose.GetNumBones()-1); BoneIndex > 0; --BoneIndex)
{
const FCompactPoseBoneIndex ParentIndex = Pose.GetParentBoneIndex(BoneIndex);
FQuat LocalSpaceRotation = Pose[ParentIndex].GetRotation().Inverse() * Pose[BoneIndex].GetRotation();
Pose[BoneIndex].SetRotation(LocalSpaceRotation);
}
}
void FAnimationRuntime::ConvertPoseToMeshRotation(FCompactPose& LocalPose)
{
// Convert all rotations to mesh space
// only the root bone doesn't have a parent. So skip it to save a branch in the iteration.
for (FCompactPoseBoneIndex BoneIndex(1); BoneIndex < LocalPose.GetNumBones(); ++BoneIndex)
{
const FCompactPoseBoneIndex ParentIndex = LocalPose.GetParentBoneIndex(BoneIndex);
const FQuat MeshSpaceRotation = LocalPose[ParentIndex].GetRotation() * LocalPose[BoneIndex].GetRotation();
LocalPose[BoneIndex].SetRotation(MeshSpaceRotation);
}
}
void FAnimationRuntime::BlendPosesTogether(
const TArray<const FCompactPose*>& SourcePoses,
const TArray<const FBlendedCurve*>& SourceCurves,
const TArray<float>& SourceWeights,
/*out*/ FCompactPose& ResultPose,
/*out*/ FBlendedCurve& ResultCurve)
{
check(SourcePoses.Num() > 0);
BlendPose<ETransformBlendMode::Overwrite>(*SourcePoses[0], ResultPose, SourceWeights[0]);
for (int32 PoseIndex = 1; PoseIndex < SourcePoses.Num(); ++PoseIndex)
{
BlendPose<ETransformBlendMode::Accumulate>(*SourcePoses[PoseIndex], ResultPose, SourceWeights[PoseIndex]);
}
// Ensure that all of the resulting rotations are normalized
if (SourcePoses.Num() > 1)
{
ResultPose.NormalizeRotations();
}
if(SourceCurves.Num() > 0)
{
BlendCurves(SourceCurves, SourceWeights, ResultCurve);
}
}
FORCEINLINE void BlendPose(const FCompactPose& SourcePose, FCompactPose& ResultPose, const float BlendWeight)
{
for (FCompactPoseBoneIndex BoneIndex : SourcePose.ForEachBoneIndex())
{
BlendTransform<TRANSFORM_BLEND_MODE>(SourcePose[BoneIndex], ResultPose[BoneIndex], BlendWeight);
}
}
void FAnimationRuntime::BlendPosesTogetherPerBoneInMeshSpace(TArray<FCompactPose>& SourcePoses, const TArray<FBlendedCurve>& SourceCurves, const UBlendSpaceBase* BlendSpace, const TArray<FBlendSampleData>& BlendSampleDataCache, FCompactPose& ResultPose, FBlendedCurve& ResultCurve)
{
FQuat NewRotation;
USkeleton* Skeleton = BlendSpace->GetSkeleton();
// all this is going to do is to convert SourcePoses.Rotation to be mesh space, and then once it goes through BlendPosesTogetherPerBone, convert back to local
for (FCompactPose& Pose : SourcePoses)
{
for (const FCompactPoseBoneIndex BoneIndex : Pose.ForEachBoneIndex())
{
const FCompactPoseBoneIndex ParentIndex = Pose.GetParentBoneIndex(BoneIndex);
if (ParentIndex != INDEX_NONE)
{
NewRotation = Pose[ParentIndex].GetRotation()*Pose[BoneIndex].GetRotation();
NewRotation.Normalize();
}
else
{
NewRotation = Pose[BoneIndex].GetRotation();
}
// now copy back to SourcePoses
Pose[BoneIndex].SetRotation(NewRotation);
}
}
// now we have mesh space rotation, call BlendPosesTogetherPerBone
BlendPosesTogetherPerBone(SourcePoses, SourceCurves, BlendSpace, BlendSampleDataCache, ResultPose, ResultCurve);
// now result atoms has the output with mesh space rotation. Convert back to local space, start from back
for (const FCompactPoseBoneIndex BoneIndex : ResultPose.ForEachBoneIndex())
{
const FCompactPoseBoneIndex ParentIndex = ResultPose.GetParentBoneIndex(BoneIndex);
if (ParentIndex != INDEX_NONE)
{
FQuat LocalBlendQuat = ResultPose[ParentIndex].GetRotation().Inverse()*ResultPose[BoneIndex].GetRotation();
ResultPose[BoneIndex].SetRotation(LocalBlendQuat);
ResultPose[BoneIndex].NormalizeRotation();
}
}
}
void FAnimationRuntime::ConvertPoseToAdditive(FCompactPose& TargetPose, const FCompactPose& BasePose)
{
for (FCompactPoseBoneIndex BoneIndex : BasePose.ForEachBoneIndex())
{
FTransform& TargetTransform = TargetPose[BoneIndex];
const FTransform& BaseTransform = BasePose[BoneIndex];
TargetTransform.SetRotation(TargetTransform.GetRotation() * BaseTransform.GetRotation().Inverse());
TargetTransform.SetTranslation(TargetTransform.GetTranslation() - BaseTransform.GetTranslation());
TargetTransform.SetScale3D(TargetTransform.GetScale3D() * BaseTransform.GetSafeScaleReciprocal(BaseTransform.GetScale3D()));
TargetTransform.NormalizeRotation();
}
}
void UAnimSingleNodeInstance::InternalBlendSpaceEvaluatePose(class UBlendSpaceBase* BlendSpace, TArray<FBlendSampleData>& BlendSampleDataCache, FPoseContext& OutContext)
{
USkeletalMeshComponent* Component = GetSkelMeshComponent();
if (BlendSpace->IsValidAdditive())
{
FCompactPose& OutPose = OutContext.Pose;
FBlendedCurve& OutCurve = OutContext.Curve;
FCompactPose AdditivePose;
FBlendedCurve AdditiveCurve;
AdditivePose.SetBoneContainer(&OutPose.GetBoneContainer());
AdditiveCurve.InitFrom(OutCurve);
#if WITH_EDITORONLY_DATA
if (BlendSpace->PreviewBasePose)
{
BlendSpace->PreviewBasePose->GetBonePose(/*out*/ OutPose, /*out*/OutCurve, FAnimExtractContext(PreviewPoseCurrentTime));
}
else
#endif // WITH_EDITORONLY_DATA
{
// otherwise, get ref pose
OutPose.ResetToRefPose();
}
BlendSpace->GetAnimationPose(BlendSampleDataCache, AdditivePose, AdditiveCurve);
enum EAdditiveAnimationType AdditiveType = BlendSpace->bRotationBlendInMeshSpace? AAT_RotationOffsetMeshSpace : AAT_LocalSpaceBase;
FAnimationRuntime::AccumulateAdditivePose(OutPose, AdditivePose, OutCurve, AdditiveCurve, 1.f, AdditiveType);
}
else
{
BlendSpace->GetAnimationPose(BlendSampleDataCache, OutContext.Pose, OutContext.Curve);
}
}
void FAnimationRuntime::AccumulateAdditivePose(FCompactPose& BasePose, const FCompactPose& AdditivePose, FBlendedCurve& BaseCurve, const FBlendedCurve& AdditiveCurve, float Weight, enum EAdditiveAnimationType AdditiveType)
{
if (AdditiveType == AAT_RotationOffsetMeshSpace)
{
AccumulateMeshSpaceRotationAdditiveToLocalPose(BasePose, AdditivePose, BaseCurve, AdditiveCurve, Weight);
}
else
{
AccumulateLocalSpaceAdditivePose(BasePose, AdditivePose, BaseCurve, AdditiveCurve, Weight);
}
// if curve exists, accumulate with the weight,
BaseCurve.Accumulate(AdditiveCurve, Weight);
// normalize
BasePose.NormalizeRotations();
}
void FAnimationRuntime::BlendTwoPosesTogether(
const FCompactPose& SourcePose1,
const FCompactPose& SourcePose2,
const FBlendedCurve& SourceCurve1,
const FBlendedCurve& SourceCurve2,
const float WeightOfPose1,
/*out*/ FCompactPose& ResultPose,
/*out*/ FBlendedCurve& ResultCurve)
{
BlendPose<ETransformBlendMode::Overwrite>(SourcePose1, ResultPose, WeightOfPose1);
BlendPose<ETransformBlendMode::Accumulate>(SourcePose2, ResultPose, 1.f - WeightOfPose1);
// Ensure that all of the resulting rotations are normalized
ResultPose.NormalizeRotations();
ResultCurve.Blend(SourceCurve1, SourceCurve2, 1.f - WeightOfPose1);
}
void BlendPosePerBone(const TArray<int32>& PerBoneIndices, const FBlendSampleData& BlendSampleDataCache, FCompactPose& ResultPose, const FCompactPose& SourcePose)
{
const float BlendWeight = BlendSampleDataCache.GetWeight();
TArray<float> PerBoneBlends;
for (int32 i = 0; i < BlendSampleDataCache.PerBoneBlendData.Num(); ++i)
{
PerBoneBlends.Add(FMath::Clamp<float>(BlendSampleDataCache.PerBoneBlendData[i], 0.f, 1.f));
}
for (FCompactPoseBoneIndex BoneIndex : SourcePose.ForEachBoneIndex())
{
int32 PerBoneIndex = PerBoneIndices[BoneIndex.GetInt()];
if (PerBoneIndex == INDEX_NONE || !BlendSampleDataCache.PerBoneBlendData.IsValidIndex(PerBoneIndex))
{
BlendTransform<TRANSFORM_BLEND_MODE>(SourcePose[BoneIndex], ResultPose[BoneIndex], BlendWeight);
}
else
{
BlendTransform<TRANSFORM_BLEND_MODE>(SourcePose[BoneIndex], ResultPose[BoneIndex], PerBoneBlends[PerBoneIndex]);
}
}
}
void FAnimationRuntime::BlendLocalPosesPerBoneWeights(
FCompactPose& BasePose,
const TArray<FCompactPose>& BlendPoses,
struct FBlendedCurve& BaseCurve,
const TArray<struct FBlendedCurve>& BlendedCurves,
const TArray<FPerBoneBlendWeight> & BoneBlendWeights,
ECurveBlendOption::Type CurveBlendOption,
/*out*/ FCompactPose& OutPose,
/*out*/ struct FBlendedCurve& OutCurve)
{
check(BasePose.GetNumBones() == BoneBlendWeights.Num());
int32 PoseNum = BlendPoses.Num();
TArray<float> MaxPoseWeights;
MaxPoseWeights.AddZeroed(PoseNum);
for (FCompactPoseBoneIndex BoneIndex : BasePose.ForEachBoneIndex())
{
const int32 PoseIndex = BoneBlendWeights[BoneIndex.GetInt()].SourceIndex;
const FTransform& BaseAtom = BasePose[BoneIndex];
const float BlendWeight = FMath::Clamp(BoneBlendWeights[BoneIndex.GetInt()].BlendWeight, 0.f, 1.f);
MaxPoseWeights[PoseIndex] = FMath::Max(MaxPoseWeights[PoseIndex], BlendWeight);
if (BlendWeight < ZERO_ANIMWEIGHT_THRESH)
{
OutPose[BoneIndex] = BaseAtom;
}
else if ((1.0 - BlendWeight) < ZERO_ANIMWEIGHT_THRESH)
{
OutPose[BoneIndex] = BlendPoses[PoseIndex][BoneIndex];
}
else // we want blend here
{
FTransform BlendAtom = BaseAtom;
const FTransform& TargetAtom = BlendPoses[PoseIndex][BoneIndex];
BlendAtom.BlendWith(TargetAtom, BlendWeight);
OutPose[BoneIndex] = BlendAtom;
}
}
// time to blend curves
// the way we blend curve per bone
// is to find out max weight per that pose, and then apply that weight to the curve
{
TArray<const FBlendedCurve*> SourceCurves;
TArray<float> SourceWegihts;
SourceCurves.SetNumUninitialized(PoseNum+1);
SourceWegihts.SetNumUninitialized(PoseNum+1);
SourceCurves[0] = &BaseCurve;
SourceWegihts[0] = 1.f;
for (int32 Idx=0; Idx<PoseNum; ++Idx)
{
SourceCurves[Idx+1] = &BlendedCurves[Idx];
SourceWegihts[Idx+1] = MaxPoseWeights[Idx];
}
BlendCurves(SourceCurves, SourceWegihts, OutCurve, CurveBlendOption);
}
}
void UBlendSpaceBase::GetAnimationPose(TArray<FBlendSampleData>& BlendSampleDataCache, /*out*/ FCompactPose& OutPose, /*out*/ FBlendedCurve& OutCurve)
{
SCOPE_CYCLE_COUNTER(STAT_BlendSpace_GetAnimPose);
FScopeCycleCounterUObject BlendSpaceScope(this);
if(BlendSampleDataCache.Num() == 0)
{
OutPose.ResetToRefPose();
return;
}
const int32 NumPoses = BlendSampleDataCache.Num();
TArray<FCompactPose, TInlineAllocator<8>> ChildrenPoses;
ChildrenPoses.AddZeroed(NumPoses);
TArray<FBlendedCurve, TInlineAllocator<8>> ChildrenCurves;
ChildrenCurves.AddZeroed(NumPoses);
TArray<float, TInlineAllocator<8>> ChildrenWeights;
ChildrenWeights.AddZeroed(NumPoses);
for(int32 ChildrenIdx=0; ChildrenIdx<ChildrenPoses.Num(); ++ChildrenIdx)
{
ChildrenPoses[ChildrenIdx].SetBoneContainer(&OutPose.GetBoneContainer());
ChildrenCurves[ChildrenIdx].InitFrom(OutCurve);
}
// get all child atoms we interested in
for(int32 I = 0; I < BlendSampleDataCache.Num(); ++I)
{
FCompactPose& Pose = ChildrenPoses[I];
if(SampleData.IsValidIndex(BlendSampleDataCache[I].SampleDataIndex))
{
const FBlendSample& Sample = SampleData[BlendSampleDataCache[I].SampleDataIndex];
ChildrenWeights[I] = BlendSampleDataCache[I].GetWeight();
if(Sample.Animation)
{
const float Time = FMath::Clamp<float>(BlendSampleDataCache[I].Time, 0.f, Sample.Animation->SequenceLength);
// first one always fills up the source one
Sample.Animation->GetAnimationPose(Pose, ChildrenCurves[I], FAnimExtractContext(Time, true));
}
else
{
Pose.ResetToRefPose();
}
}
else
{
Pose.ResetToRefPose();
}
}
TArrayView<FCompactPose> ChildrenPosesView(ChildrenPoses);
if (PerBoneBlend.Num() > 0)
{
if (IsValidAdditive())
{
if (bRotationBlendInMeshSpace)
{
FAnimationRuntime::BlendPosesTogetherPerBoneInMeshSpace(ChildrenPosesView, ChildrenCurves, this, BlendSampleDataCache, OutPose, OutCurve);
}
else
{
FAnimationRuntime::BlendPosesTogetherPerBone(ChildrenPosesView, ChildrenCurves, this, BlendSampleDataCache, OutPose, OutCurve);
}
}
else
{
FAnimationRuntime::BlendPosesTogetherPerBone(ChildrenPosesView, ChildrenCurves, this, BlendSampleDataCache, OutPose, OutCurve);
}
}
else
{
FAnimationRuntime::BlendPosesTogether(ChildrenPosesView, ChildrenCurves, ChildrenWeights, OutPose, OutCurve);
}
// Once all the accumulation and blending has been done, normalize rotations.
OutPose.NormalizeRotations();
}
void UDebugSkelMeshComponent::RefreshBoneTransforms(FActorComponentTickFunction* TickFunction)
{
// Run regular update first so we get RequiredBones up to date.
Super::RefreshBoneTransforms(NULL); // Pass NULL so we force non threaded work
const bool bIsPreviewInstance = (PreviewInstance && PreviewInstance == AnimScriptInstance);
BakedAnimationPoses.Empty();
if(bDisplayBakedAnimation && bIsPreviewInstance && PreviewInstance->RequiredBones.IsValid())
{
if(UAnimSequence* Sequence = Cast<UAnimSequence>(PreviewInstance->CurrentAsset))
{
BakedAnimationPoses.AddUninitialized(PreviewInstance->RequiredBones.GetNumBones());
bool bSavedUseSourceData = AnimScriptInstance->RequiredBones.ShouldUseSourceData();
AnimScriptInstance->RequiredBones.SetUseRAWData(true);
AnimScriptInstance->RequiredBones.SetUseSourceData(false);
PreviewInstance->EnableControllers(false);
GenSpaceBases(BakedAnimationPoses);
AnimScriptInstance->RequiredBones.SetUseRAWData(false);
AnimScriptInstance->RequiredBones.SetUseSourceData(bSavedUseSourceData);
PreviewInstance->EnableControllers(true);
}
}
SourceAnimationPoses.Empty();
if(bDisplaySourceAnimation && bIsPreviewInstance && PreviewInstance->RequiredBones.IsValid())
{
if(UAnimSequence* Sequence = Cast<UAnimSequence>(PreviewInstance->CurrentAsset))
{
SourceAnimationPoses.AddUninitialized(PreviewInstance->RequiredBones.GetNumBones());
bool bSavedUseSourceData = AnimScriptInstance->RequiredBones.ShouldUseSourceData();
AnimScriptInstance->RequiredBones.SetUseSourceData(true);
PreviewInstance->EnableControllers(false);
GenSpaceBases(SourceAnimationPoses);
AnimScriptInstance->RequiredBones.SetUseSourceData(bSavedUseSourceData);
PreviewInstance->EnableControllers(true);
}
}
UncompressedSpaceBases.Empty();
if (bDisplayRawAnimation && AnimScriptInstance && AnimScriptInstance->RequiredBones.IsValid())
{
UncompressedSpaceBases.AddUninitialized(AnimScriptInstance->RequiredBones.GetNumBones());
AnimScriptInstance->RequiredBones.SetUseRAWData(true);
GenSpaceBases(UncompressedSpaceBases);
AnimScriptInstance->RequiredBones.SetUseRAWData(false);
}
// Non retargeted pose.
NonRetargetedSpaceBases.Empty();
if( bDisplayNonRetargetedPose && AnimScriptInstance && AnimScriptInstance->RequiredBones.IsValid() )
{
NonRetargetedSpaceBases.AddUninitialized(AnimScriptInstance->RequiredBones.GetNumBones());
AnimScriptInstance->RequiredBones.SetDisableRetargeting(true);
GenSpaceBases(NonRetargetedSpaceBases);
AnimScriptInstance->RequiredBones.SetDisableRetargeting(false);
}
// Only works in PreviewInstance, and not for anim blueprint. This is intended.
AdditiveBasePoses.Empty();
if( bDisplayAdditiveBasePose && bIsPreviewInstance && PreviewInstance->RequiredBones.IsValid() )
{
if (UAnimSequence* Sequence = Cast<UAnimSequence>(PreviewInstance->CurrentAsset))
{
if (Sequence->IsValidAdditive())
{
FCSPose<FCompactPose> CSAdditiveBasePose;
{
FCompactPose AdditiveBasePose;
FBlendedCurve AdditiveCurve(PreviewInstance);
AdditiveBasePose.SetBoneContainer(&PreviewInstance->RequiredBones);
Sequence->GetAdditiveBasePose(AdditiveBasePose, AdditiveCurve, FAnimExtractContext(PreviewInstance->CurrentTime));
CSAdditiveBasePose.InitPose(AdditiveBasePose);
}
for (int32 i = 0; i < AdditiveBasePoses.Num(); ++i)
{
FCompactPoseBoneIndex CompactIndex = PreviewInstance->RequiredBones.MakeCompactPoseIndex(FMeshPoseBoneIndex(i));
AdditiveBasePoses[i] = CSAdditiveBasePose.GetComponentSpaceTransform(CompactIndex);
}
}
}
}
}
bool UAnimSingleNodeInstance::NativeEvaluateAnimation(FPoseContext& Output)
{
if (CurrentAsset != NULL)
{
//@TODO: animrefactor: Seems like more code duplication than we need
if (UBlendSpaceBase* BlendSpace = Cast<UBlendSpaceBase>(CurrentAsset))
{
InternalBlendSpaceEvaluatePose(BlendSpace, BlendSampleData, Output);
}
else if (UAnimSequence* Sequence = Cast<UAnimSequence>(CurrentAsset))
{
if (Sequence->IsValidAdditive())
{
FAnimExtractContext ExtractionContext(CurrentTime, Sequence->bEnableRootMotion);
Sequence->GetAdditiveBasePose(Output.Pose, Output.Curve, ExtractionContext);
FCompactPose AdditivePose;
FBlendedCurve AdditiveCurve;
AdditivePose.SetBoneContainer(&Output.Pose.GetBoneContainer());
AdditiveCurve.InitFrom(Output.Curve);
Sequence->GetAnimationPose(AdditivePose, AdditiveCurve, ExtractionContext);
FAnimationRuntime::AccumulateAdditivePose(Output.Pose, AdditivePose, Output.Curve, AdditiveCurve, 1.f, Sequence->AdditiveAnimType);
Output.Pose.NormalizeRotations();
}
else
{
// if SkeletalMesh isn't there, we'll need to use skeleton
Sequence->GetAnimationPose(Output.Pose, Output.Curve, FAnimExtractContext(CurrentTime, Sequence->bEnableRootMotion));
}
}
else if (UAnimComposite* Composite = Cast<UAnimComposite>(CurrentAsset))
{
FAnimExtractContext ExtractionContext(CurrentTime, ShouldExtractRootMotion());
const FAnimTrack& AnimTrack = Composite->AnimationTrack;
// find out if this is additive animation
if (AnimTrack.IsAdditive())
{
#if WITH_EDITORONLY_DATA
if (Composite->PreviewBasePose)
{
Composite->PreviewBasePose->GetAdditiveBasePose(Output.Pose, Output.Curve, ExtractionContext);
}
else
#endif
{
// get base pose - for now we only support ref pose as base
Output.Pose.ResetToRefPose();
}
EAdditiveAnimationType AdditiveAnimType = AnimTrack.IsRotationOffsetAdditive()? AAT_RotationOffsetMeshSpace : AAT_LocalSpaceBase;
FCompactPose AdditivePose;
FBlendedCurve AdditiveCurve;
AdditivePose.SetBoneContainer(&Output.Pose.GetBoneContainer());
AdditiveCurve.InitFrom(Output.Curve);
Composite->GetAnimationPose(AdditivePose, AdditiveCurve, ExtractionContext);
FAnimationRuntime::AccumulateAdditivePose(Output.Pose, AdditivePose, Output.Curve, AdditiveCurve, 1.f, AdditiveAnimType);
}
else
{
//doesn't handle additive yet
Composite->GetAnimationPose(Output.Pose, Output.Curve, ExtractionContext);
}
}
else if (UAnimMontage* Montage = Cast<UAnimMontage>(CurrentAsset))
{
// for now only update first slot
// in the future, add option to see which slot to see
if (Montage->SlotAnimTracks.Num() > 0)
{
FCompactPose SourcePose;
FBlendedCurve SourceCurve;
SourcePose.SetBoneContainer(&Output.Pose.GetBoneContainer());
SourceCurve.InitFrom(Output.Curve);
if (Montage->IsValidAdditive())
{
#if WITH_EDITORONLY_DATA
// if montage is additive, we need to have base pose for the slot pose evaluate
if (Montage->PreviewBasePose && Montage->SequenceLength > 0.f)
{
Montage->PreviewBasePose->GetBonePose(SourcePose, SourceCurve, FAnimExtractContext(CurrentTime));
}
else
#endif // WITH_EDITORONLY_DATA
{
SourcePose.ResetToRefPose();
}
}
else
{
SourcePose.ResetToRefPose();
}
SlotEvaluatePose(Montage->SlotAnimTracks[0].SlotName, SourcePose, SourceCurve, Output.Pose, Output.Curve, 1.f);
}
}
}
if(CurrentVertexAnim != NULL)
{
VertexAnims.Add(FActiveVertexAnim(CurrentVertexAnim, 1.f, CurrentTime));
}
return true;
}
