In 1994, one of our biggest accomplishments was having found a very efficient method to convert any Gregory-type patches to NURBS surfaces. This will make our project more useful and practical because any Gregory-type patches can be approximated by the standard free-form representation method.
In addition to the above mentioned accomplishments, we have improved our ray tracing method and done processing time analysis. Furthermore, we have refined our theory on Rational Boundary $C^2$ Gregory patch and further extended the sophistication of NURBS Boundary $C^2$ Gregory patches.