Co-host: The Institute of Image Electronics Engineers of Japan, The Institute of Image Information and Television Engineers
We have already proposed a sketch-based 3-D modeling interface, BlueGrotto, on the basis of a freehand curve identification technique named FSCI-3D. This is an interface with witch a user can input each of solid primitives as a sweeping operation, where a sweep path and a sweep profile are input by freehand drawing in virtual-reality space. However, with BlueGrotto, it is impossible for a user to input complex 3-D objects that are defined by several profiles, such as a ship's hull. This paper proposes to introduce a skinning operation into BlueGrotto and establishes a new user interface with which a user can input multiple profiles by freehand drawing. Experimental results show that a user can input a variety of 3-D objects as sweeping operations and/or skinning operations using the proposed user interface in a consistent freehand drawing manner.