: Having evolved from volume visualisation, volume graphics is emerging as an important sub-field of computer graphics. This paper focuses on a fundamental aspect of volume graphics, the modelling of complex graphics objects and scenes using volume data types. We present an algebraic theory for volume data types, and describe a hierarchical modelling scheme, called Constructive Volume Geometry (CVG), for building complex volume objects. We also outline a recursive algorithm for rendering scenes composed of CVG objects. The work has demonstrated the feasibility of using volume data types in general graphics applications, and the advantages of volume data types over surface/solid data types in some aspects.
Min Chen, J. V. Tucker