• Deforming 3D Shapes by Bending and Twisting a Virtual Ribbon with Both Hands 

      Llamas, Ignacio; Powell, Alexander; Rossignac, Jaroslaw R.; Shaw, Christopher D. (Georgia Institute of Technology, 2004)
      Bender is an interactive tool for bending and warping triangulated surfaces. The designer uses a virtual ribbon to grab a portion of the shape and to deform it through direct manipulation. The ribbon is defined by its ...