Direct volume rendering of unstructured grids in a PC based VR environment

Abstract

In this paper we present our solution for fast, direct volume rendering of unstructured grids on standard PC workstations. We describe our modification of the incremental slicing approach for achieving high performance as well as the application of geometry-compression methods for minimizing the memory requirements. Furthermore, we show our implementation for the interactive modification of transfer functions (classification) in a virtual reality environment by using 3D interaction widgets. Finally we present and discuss the results, we achieved with our application in a VR environment.