Creates a PhysX rope.
fromObject: Object - object where rope starts and which fly behavior will be affected
fromPoint: Array or
String - specifies where on the object the rope should start, either a string (name of memory point) or an array of three numbers (vector in model coordinates).
toObject: Object - - object which is automatically attached to other side of rope (can be objNull, rope will stay with free end)
toPoint: Array or
String - specifies where on the object the rope should finish, either a string (name of memory point) or an array of three numbers (vector in model coordinates)
length (Optional):
Number - rope length in meters