Case study on real-time visualization of virtual tübingen on commodity PC hardware

Authors:
Michael Meißner;Jasmina Orman;Stephan J. Braun
Affiliations:
WSI/GRIS, University of Tübingen, D-72076 Tübingen, Germany;WSI/GRIS, University of Tübingen, D-72076 Tübingen, Germany;Max Planck Institute for Biological Cybernetics Spemannstraße 38, D-72076 Tübingen, Germany
Venue:
Proceedings of the conference on Visualization '01
Year:
2001

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Abstract

For psychophysical studies in spatial cognition a virtual model of the picturesque old town of Tübingen has been constructed. In order to perform psychophysical experiments in highly realistic virtual environments the model is based on high quality texture maps adding up to several hundreds of MBytes. To accomplish the required real-time frame updates, view frustum and occlusion culling without visibility pre-processing, levels of detail, and texture compression are applied in an interleaved manner. Shared memory communication and a standard PC with two commodity graphics cards is used to enable the powerful combination of those techniques because this combination is not yet available on a single graphics card.