CeVis
  1. Center of Complex Systems and Visualization
  2. Lehre
  3. Oberseminar

In dem regelmäßig stattfindenden Oberseminar tragen Gäste aus aller Welt über Forschungsarbeiten zu Themen vor, die mit der Arbeit von CeVis und MeVis in Verbindung stehen, und Mitarbeiter von CeVis und MeVis präsentieren ihre neusten Ergebnisse.


C(M)eVis-Oberseminar am 5.11.1999


Datum: Freitag, der 5.11.1999
Zeit: 11.00 Uhr s.t.
Ort: Seminarraum Mandelbrot
Referent: Prof. Dr. Shiaofen Fang (Indiana University Purdue, Department of Computer and Information Science)
HARDARE ACCELERATED VOXELIZATION FOR INTERACTIVE VOLUME GRAPHICS
Volume graphics offers a viable alternative to surface graphics by representing and rendering 3D scenes using volumetric techniques such as volume rendering and volumetric modeling. In this process, voxelization is mainly used as a pre-processing step to pre-convert 3D scenes to volume representations. In this presentation, an interactive volume graphics paradigm will be described. It allows 3D scenes to be modeled and manipulated in their own representations, and applies volume techniques to desired regions of the scene when needed. A central component of this approach is a set of fast voxelization algorithms that generate volume representations of regions of interest on the fly. The algorithms take advantages of 3D graphics hardware features in modern graphics workstations, such as texture mapping and frame buffer blending functions, and are able to provide volume rendering support for interactive object manipulations and CSG operations with both geometric and volumetric objects. This naturally extends existing surface graphics systems to volume graphics systems without any hardware changes. Compared to the current volume graphics paradigm, our approach provides better support for dynamic and interactive applications involving mixtures of geometric and volumetric objects without compromising geometric accuracy and modeling capabilities.
A. Rodenhausen, 22.10.1999