TY - CHAP AU - Oevel, Gudrun AU - Toschläger, M. ED - Degkwitz, A. ED - Klapper, F. ID - 17317 T2 - Prozessorientierte Hochschule TI - Einführung eines prozessorientierten Campusmanagement an der Universität Paderborn – ein Erfahrungsbericht ER - TY - CONF AU - Brennecke, Andreas AU - Oevel, Gudrun AU - Strothmann, A. ED - Müller, P. ED - Neumair, B. ED - Dreo Rodosek, G. ID - 17318 T2 - 4. DFN-Forum Kommunikationstechnologien – Beiträge der Fachtagung 20./21.6.2011 Bonn TI - Vom Studiolo zur virtuellen Forschungsumgebung VL - 187 ER - TY - CONF AB - Occlusion culling is a common approach to accelerate real-time rendering of polygonal 3D-scenes by reducing the rendering load. Especially for large scenes, it is necessary to remove occluded objects to achieve a frame rate that provides an interactive environment. In order to benefit from the culling properly, often hierarchical data structures are used. These data structures typically create a spatial subdivision of a given scene into axis-aligned bounding boxes. These boxes can be tested quickly, but they are not very precise. By using these boxes, the included objects are detected as visible, even if other objects occlude them (false-positives). To get perfect results, the models’ original geometry included in the box has to be tested, but this would require too much computational power. To overcome this problem, original objects’ approximations could be used, but typical methods for mesh simplification cannot be applied, because they do not create an outer hull for a given object. We present a model simplification algorithm, which generates simple outer hulls, consisting of only few more triangles than a box, while preserving an object’s shape better than a corresponding bounding box. This approach is then extended to a hierarchical data structure, the so-called hull tree, that can be generated for a given scene to improve the visibility tests. Next, we present an approximative rendering algorithm, which combines the features of the hull tree with the use of inner hulls for efficient occlusion detection and global state-sorting of the visible objects. AU - Suess, Tim AU - Koch, Clemens AU - Jähn, Claudius AU - Fischer, Matthias ED - Brooks, Stephen ED - Irani, Pourang ID - 17420 T2 - Proceedings of the Graphics Interface 2011 Conference, May 25-27, St. John's, Newfoundland, Canada TI - Approximative occlusion culling using the hull tree ER - TY - CONF AU - Klaas, Alexander AU - Laroque, Christoph AU - Dangelmaier, Wilhelm AU - Fischer, Matthias ID - 17421 SN - 9781457721090 T2 - Proceedings of the 2011 Winter Simulation Conference (WSC) TI - Simulation aided, knowledge based routing for AGVs in a distribution warehouse ER - TY - CONF AU - Suess, Tim AU - Jähn, Claudius AU - Fischer, Matthias AU - Meyer auf der Heide, Friedhelm AU - Koch, Clemens ID - 17450 T2 - Augmented & Virtual Reality in der Produktentstehung TI - Ein paralleles Out-of-Core Renderingsystem für Standard-Rechnernetze VL - 295 ER - TY - THES AU - Suess, Tim ID - 17454 TI - Parallel Real-Time Rendering using Heterogeneous PC Clusters ER - TY - BOOK AU - Mindt, Ilka ID - 17692 TI - Adjective complementation by that-clauses: An empirical study ER - TY - JOUR AU - Mindt, Ilka AU - Lindquist, Hans ID - 17891 JF - ICAME Journal 35 TI - Corpus Linguistics and the Description of English ER - TY - CHAP AU - Mindt, Ilka AU - Mukherjee, Joybrato ID - 17894 T2 - Anglistik. International Journal of English Studies, 22, 1 TI - Anglistische Korpuslinguistik. Eine Einführung. Grundlagen der Anglistik und Amerikanistik 33 ER - TY - CONF AU - W. Richa, Andrea AU - Scheideler, Christian AU - Schmid, Stefan AU - Zhang, Jin ID - 1891 SN - 978-0-7695-4364-2 T2 - 2011 International Conference on Distributed Computing Systems, ICDCS 2011, Minneapolis, Minnesota, USA, June 20-24, 2011 TI - Competitive and Fair Medium Access Despite Reactive Jamming ER -