void FMovieScene3DAttachTrackInstance::UpdateConstraint( float Position, const TArray<TWeakObjectPtr<UObject>>& RuntimeObjects, AActor* Actor, UMovieScene3DConstraintSection* ConstraintSection )
{
FVector Translation;
FRotator Rotation;
UMovieScene3DAttachSection* AttachSection = CastChecked<UMovieScene3DAttachSection>(ConstraintSection);
for( int32 ObjIndex = 0; ObjIndex < RuntimeObjects.Num(); ++ObjIndex )
{
USceneComponent* SceneComponent = MovieSceneHelpers::SceneComponentFromRuntimeObject(RuntimeObjects[ObjIndex].Get());
if (SceneComponent != nullptr)
{
AttachSection->Eval(SceneComponent, Position, Actor, Translation, Rotation);
// Set the relative translation and rotation. Note they are set once instead of individually to avoid a redundant component transform update.
SceneComponent->SetRelativeLocationAndRotation(Translation, Rotation);
}
}
}
void FMovieScene3DTransformTrackInstance::Update( float Position, float LastPosition, const TArray<UObject*>& RuntimeObjects, class IMovieScenePlayer& Player )
{
FVector Translation;
FRotator Rotation;
FVector Scale;
bool bHasTranslationKeys = false;
bool bHasRotationKeys = false;
bool bHasScaleKeys = false;
if( TransformTrack->Eval( Position, LastPosition, Translation, Rotation, Scale, bHasTranslationKeys, bHasRotationKeys, bHasScaleKeys ) )
{
for( int32 ObjIndex = 0; ObjIndex < RuntimeObjects.Num(); ++ObjIndex )
{
UObject* Object = RuntimeObjects[ObjIndex];
AActor* Actor = Cast<AActor>( Object );
USceneComponent* SceneComponent = NULL;
if( Actor && Actor->GetRootComponent() )
{
// If there is an actor, modify its root component
SceneComponent = Actor->GetRootComponent();
}
else
{
// No actor was found. Attempt to get the object as a component in the case that we are editing them directly.
SceneComponent = Cast<USceneComponent>( Object );
}
// Set the relative translation and rotation. Note they are set once instead of individually to avoid a redundant component transform update.
SceneComponent->SetRelativeLocationAndRotation(
bHasTranslationKeys ? Translation : SceneComponent->RelativeLocation,
bHasRotationKeys ? Rotation : SceneComponent->RelativeRotation );
if( bHasScaleKeys )
{
SceneComponent->SetRelativeScale3D( Scale );
}
}
}
}
void FLevelUtils::ApplyLevelTransform( ULevel* Level, const FTransform& LevelTransform, bool bDoPostEditMove )
{
bool bTransformActors = !LevelTransform.Equals(FTransform::Identity);
if (bTransformActors)
{
if (!LevelTransform.GetRotation().IsIdentity())
{
// If there is a rotation applied, then the relative precomputed bounds become invalid.
Level->bTextureStreamingRotationChanged = true;
}
// Iterate over all actors in the level and transform them
for( int32 ActorIndex=0; ActorIndex<Level->Actors.Num(); ActorIndex++ )
{
AActor* Actor = Level->Actors[ActorIndex];
// Don't want to transform children they should stay relative to there parents.
if( Actor && Actor->GetAttachParentActor() == NULL )
{
// Has to modify root component directly as GetActorPosition is incorrect this early
USceneComponent *RootComponent = Actor->GetRootComponent();
if (RootComponent)
{
RootComponent->SetRelativeLocationAndRotation( LevelTransform.TransformPosition(RootComponent->RelativeLocation), (FTransform(RootComponent->RelativeRotation) * LevelTransform).Rotator());
}
}
}
#if WITH_EDITOR
if( bDoPostEditMove )
{
ApplyPostEditMove( Level );
}
#endif // WITH_EDITOR
Level->OnApplyLevelTransform.Broadcast(LevelTransform);
}
}