void FAnimationRuntime::ExcludeBonesWithNoParents(const TArray<int32> & BoneIndices, const FReferenceSkeleton& RefSkeleton, TArray<int32> & FilteredRequiredBones)
{
// Filter list, we only want bones that have their parents present in this array.
FilteredRequiredBones.Empty(BoneIndices.Num());
for (int32 Index=0; Index<BoneIndices.Num(); Index++)
{
const int32& BoneIndex = BoneIndices[Index];
// Always add root bone.
if( BoneIndex == 0 )
{
FilteredRequiredBones.Add(BoneIndex);
}
else
{
const int32 ParentBoneIndex = RefSkeleton.GetParentIndex(BoneIndex);
if( FilteredRequiredBones.Contains(ParentBoneIndex) )
{
FilteredRequiredBones.Add(BoneIndex);
}
else
{
UE_LOG(LogAnimation, Warning, TEXT("ExcludeBonesWithNoParents: Filtering out bone (%s) since parent (%s) is missing"),
*RefSkeleton.GetBoneName(BoneIndex).ToString(), *RefSkeleton.GetBoneName(ParentBoneIndex).ToString());
}
}
}
}
/** Check that root bone is the same, and that any bones that are common have the correct parent. */
bool SkeletonsAreCompatible( const FReferenceSkeleton& NewSkel, const FReferenceSkeleton& ExistSkel )
{
if(NewSkel.GetBoneName(0) != ExistSkel.GetBoneName(0))
{
UnFbx::FFbxImporter* FFbxImporter = UnFbx::FFbxImporter::GetInstance();
FFbxImporter->AddTokenizedErrorMessage(FTokenizedMessage::Create(EMessageSeverity::Error, FText::Format(LOCTEXT("MeshHasDifferentRoot", "Root Bone is '{0}' instead of '{1}'.\nDiscarding existing LODs."),
FText::FromName(NewSkel.GetBoneName(0)), FText::FromName(ExistSkel.GetBoneName(0)))));
return false;
}
for(int32 i=1; i<NewSkel.GetNum(); i++)
{
// See if bone is in both skeletons.
int32 NewBoneIndex = i;
FName NewBoneName = NewSkel.GetBoneName(NewBoneIndex);
int32 BBoneIndex = ExistSkel.FindBoneIndex(NewBoneName);
// If it is, check parents are the same.
if(BBoneIndex != INDEX_NONE)
{
FName NewParentName = NewSkel.GetBoneName( NewSkel.GetParentIndex(NewBoneIndex) );
FName ExistParentName = ExistSkel.GetBoneName( ExistSkel.GetParentIndex(BBoneIndex) );
if(NewParentName != ExistParentName)
{
UnFbx::FFbxImporter* FFbxImporter = UnFbx::FFbxImporter::GetInstance();
FFbxImporter->AddTokenizedErrorMessage(FTokenizedMessage::Create(EMessageSeverity::Error, FText::Format(LOCTEXT("MeshHasDifferentRoot", "Root Bone is '{0}' instead of '{1}'.\nDiscarding existing LODs."),
FText::FromName(NewBoneName), FText::FromName(NewParentName))));
return false;
}
}
}
return true;
}