Applications of Volume Rendering in the CAVE
This paper presents the work that has been carried out at SARA on various projects that use volume rendering techniques to explore 3D (i.e., volumetric) datasets in the CAVE virtual reality environment. The stereoscopic, large-format images of the CAVE offer insights into the data that a normal rendering viewed on a monitor does not. After evaluating the few existing volume rendering programs available for the CAVE, we concluded that we needed to develop our own software, if we wanted an up-to-date, robust, and extensible application. Because our CAVE is driven by a high-end Silicon Graphics computer, the use of a (hardware assisted) 3D texture-mapping algorithm is the most obvious choice. With this algorithm, interactive framerates can be obtained, which is essential for use in a VR environment. We have used the resulting software, dubbed CAVORE for CAve VOlume REndering, to explore both medical and biological datasets and are extending it with new options as required by the ongoing projects.
KeywordsVirtual Environment Synaptonemal Complex Volume Rendering Stereo Pair Algebraic Reconstruction Technique
Unable to display preview. Download preview PDF.
- 1.R. Brady, J. Pixton, G. Baxter, P. Moran, C. S. Potter, B. Carragher, and A. Belmont. Crumbs: A virtual environment tracking tool for biological imaging. In IEEE Symposium on Frontiers in Biomedical Visualization Proceedings, pages 18–25, 1995.Google Scholar
- 2.U. Cullip and U. Neumann. Accelerating volume reconstruction with 3D texture hardware. Technical Report TR93–0027, University of North Carolina, 1993.Google Scholar
- 4.R. Hudson. Vren: A C++ class for VR volume rendering. Final Project Repor EECS590, University of Illinois at Chicago, 1996.Google Scholar
- 6.A. H. J. Koning. Parallel Volume Visualization. PhD thesis, University of Utrecht, 1996.Google Scholar
- 7.P. Lacroute and M. Levoy. Fast volume rendering using a shear-warp factorization of the viewing transformation. In Computer Graphics (SIGGRAPH ’9.4 Proceedings), pages 451–458, 1994.Google Scholar
- 11.M. Teschner. Texture mapping. IRIS Universe, 29:8–11, Fall 1994.Google Scholar
- 12.H. van der Voort. The Huygens Image Restoration System.Scientific Volume Imaging B.V. < http://www.svi.nl>.
- 13.L. Westover. Interactive volume rendering. In CH Volume Visualization Workshop, pages 9–16, New York, 1989. ACM SIGGRAPH.Google Scholar
- 14.0. Wilson, A. van Gelder, and J. Wilhelms. Direct volume rendering via 3D textures. Technical Report UCSC-CRL-94–19, University of California, Santa Cruz, 1994.Google Scholar