PROTO ShowAnim3 [
      eventIn  SFFloat    set_fraction
      eventOut SFVec3f    translation
      eventOut SFRotation rotation
  ] {
      PositionInterpolator {    
          set_fraction  IS set_fraction
          value_changed IS translation
          key [ 0.0, 0.5, 1.0 ]    
          keyValue [ -20 0 0, -8 0 0, 0 0 0 ] 
      }
      OrientationInterpolator {    
          set_fraction  IS set_fraction
          value_changed IS rotation
          key [ 0.0, 0.5, 1.0 ]    
          keyValue [ 0 0 1 0, 0 0 1 0, 0 0 1 0 ] 
      }
  }