Create seperate objects for the belt and robe. Constrain the area of the robe where the belt will land. Calculate the robe. Don't use any drape frames. If it needs drape, build it into the animation. Now add the belt to the scene be sure the robe is a collision object for the belt. You will probably want to constrain part of the belt, maybe all of it. If the belt has a dangly part leave it dynamic. Now calculate the belt. Nerd3D