A three-dimensional model processing apparatus includes a three-dimensional data-format converter for converting the data format of three-dimensional data inputted by a three-dimensional data input unit, a three-dimensional data processor for processing the three-dimensional data converted by the three-dimensional...http://www.google.com/patents/US5936628?utm_source=gb-gplus-sharePatent US5936628 - Three-dimensional model processing method, and apparatus therefor
