I modeled a refrigerator and I need it to 'walk' like a zombie. There are to be no deformations(i.e the animation is not cartoony). Imagine there are two pivot points at the front left and front right of the fridge. Movement is to be achieved by rotating, first around one pivot, then around the second. I've tried various methods to no avail: parenting it to two nulls, using parent blend. I hope the question is clear. Please help.