Constraint constraint = Constraint::New<Vector3>( mFrame, Actor::Property::POSITION, EqualToConstraint() );
constraint.AddSource( ParentSource( Actor::Property::WORLD_POSITION ) );
Constraint constraint = Constraint::New<Vector3>( mFrame, Actor::Property::POSITION, EqualToConstraint() );
constraint.AddSource( ParentSource( Actor::Property::WORLD_POSITION ) );