Experimental CSG environment for modelling solid

The purpose of this research is to develop an experimental environment for solid modelling which can provide a wide range of graphics primitives and operations toward making the modelling process more flexible. The system can handle different types of representations and combine them with an extended-CSG structure. A new geometric editor to enter and modify the data is also reported. To handle different types of representation, the system has an object-oriented structure and the idea of a common function is introduced to give the interface between them. Ray tracing is used as the rendering method. New techniques for generating images for complex objects are shown with several modelling examples.