The Charismatic approach to modelling and rendering urban environments


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Arnold, David, Day, A.M., Fellner, D. and Havemann, S. (2003) The Charismatic approach to modelling and rendering urban environments In: Enter the Past. The E-way into the four Dimensions of Cultural Heritage. CAA 2003. Computer Applications and Quantitative Methods in Archaeology, Vienna, Austria, 8-12 April, 2003.

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The Charismatic research project ( is about the production and the interactive rendering of complete reconstructions of populated Cultural Heritage Sites. Both the re-creation and the 3D rendering of virtual reconstructions of city-sized historic environments are technically quite difficult. In order to accomplish them, a full range of approaches and tools were developed in the course of the project. Their underlying idea is to exploit domain knowledge, and also the semantics, of the types of objects to be re-created in order to make the modelling of virtual reconstructions less cost-intensive. As an example, the tool-set includes techniques such as · shells, i.e. deformable boxes that can be flexibly distorted, textured, and combined, · their arrangement in a specially-tailored hierarchical scene-graph, and also · multi-resolution data structures such as progressive meshes and subdivision surfaces for free-form ornaments attached to shells. The same structural and semantic information useful for modelling is also exploited by the Charismatic renderer: Interactive display is optimised by applying appropriately chosen level-of-detail and culling techniques. In summary, we present a tool-box of different techniques, designed to make the modelling and rendering of city-sized models feasible, covering as many aspects of this challenging task as possible.

Item Type: Contribution to conference proceedings in the public domain ( Full Paper)
Additional Information: Full paper on CD only
Subjects: G000 Computing and Mathematical Sciences
Faculties: Faculty of Science and Engineering > School of Computing, Engineering and Mathematics > ICT and Cultural Heritage
Depositing User: Helen Webb
Date Deposited: 27 Nov 2007
Last Modified: 12 Mar 2015 12:41

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