Visualizing Design and Spatial Assembly of Interactive CSG

  • For interactive construction of CSG models understanding the layout of a model is essential for its efficient manipulation. To understand position and orientation of aggregated components of a CSG model, we need to realize its visible and occluded parts as a whole. Hence, transparency and enhanced outlines are key techniques to assist comprehension. We present a novel real-time rendering technique for visualizing design and spatial assembly of CSG models. As enabling technology we combine an image-space CSG rendering algorithm with blueprint rendering. Blueprint rendering applies depth peeling for extracting layers of ordered depth from polygonal models and then composes them in sorted order facilitating a clear insight of the models. We develop a solution for implementing depth peeling for CSG models considering their depth complexity. Capturing surface colors of each layer and later combining the results allows for generating order-independent transparency as one major rendering technique for CSG models. We further define visually iFor interactive construction of CSG models understanding the layout of a model is essential for its efficient manipulation. To understand position and orientation of aggregated components of a CSG model, we need to realize its visible and occluded parts as a whole. Hence, transparency and enhanced outlines are key techniques to assist comprehension. We present a novel real-time rendering technique for visualizing design and spatial assembly of CSG models. As enabling technology we combine an image-space CSG rendering algorithm with blueprint rendering. Blueprint rendering applies depth peeling for extracting layers of ordered depth from polygonal models and then composes them in sorted order facilitating a clear insight of the models. We develop a solution for implementing depth peeling for CSG models considering their depth complexity. Capturing surface colors of each layer and later combining the results allows for generating order-independent transparency as one major rendering technique for CSG models. We further define visually important edges for CSG models and integrate an image-space edgeenhancement technique for detecting them in each layer. In this way, we extract visually important edges that are directly and not directly visible to outline a model’s layout. Combining edges with transparency rendering, finally, generates edge-enhanced depictions of image-based CSG models and allows us to realize their complex, spatial assembly.show moreshow less

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Metadaten
Author:Jürgen Döllner, Florian Kirsch, Marc Nienhaus
URN:urn:nbn:de:kobv:517-opus-33771
Series (Serial Number):Technische Berichte des Hasso-Plattner-Instituts für Softwaresystemtechnik an der Universität Potsdam, ISSN 2191-1665 (07)
Publisher:Universitätsverlag Potsdam
Place of publication:Potsdam
Document Type:Book
Language:English
Date of Publication (online):2009/08/11
Year of Completion:2005
Publishing Institution:Universität Potsdam
Release Date:2009/08/11
Pagenumber:8
RVK - Regensburg Classification:ST 230
Organizational units:An-Institute / Hasso-Plattner-Institut für Softwaresystemtechnik GMBH
Dewey Decimal Classification:0 Informatik, Informationswissenschaft, allgemeine Werke / 00 Informatik, Wissen, Systeme / 004 Datenverarbeitung; Informatik
Publication Way:Universitätsverlag Potsdam
Licence (German):License LogoKeine Nutzungslizenz vergeben - es gilt das deutsche Urheberrecht
Notes extern:In Printform erschienen im Universitätsverlag Potsdam:

Kirsch, Florian:
Visualizing design and spatial assembly of interactive CSG / Florian Kirsch ; Marc Nienhaus ; Jürgen Döllner. - Potsdam : Univ.-Verl., 2005. - 8 S.
(Technische Berichte des Hasso-Plattner-Instituts für Softwaresystemtechnik an der Universität Potsdam ; 7)
ISBN 978-3-937786-56-2
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