The virtual reconstruction and daylight illumination of the panagia angeloktisti

Authors: Happa, J., Artusi, A., Dubla, P., Bashford-Rogers, T., Debattista, K., Hulusic, V. and Chalmers, A.

http://eprints.bournemouth.ac.uk/30378/

Journal: VAST

Pages: 49-56

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Authors: Happa, J., Artusi, A., Dubla, P., Bashford-Rogers, T., Debattista, K., Hulusíc, V. and Chalmers, A.

http://eprints.bournemouth.ac.uk/30378/

Journal: VAST: International Symposium on Virtual Reality, Archaeology and Intelligent Cultural Heritage

Pages: 49-56

ISBN: 9783905674187

ISSN: 1811-864X

High-fidelity virtual reconstructions can be used as accurate 3D representations of historical environments. After modelling the site to high precision, physically-based and historically correct light models must be implemented to complete an authentic visualisation. Sunlight has a major visual impact on a site; from directly lit areas to sections in deep shadow. The scene illumination also changes substantially at different times of the day. In this paper we present a virtual reconstruction of the Panagia Angeloktisti; a Byzantine church on Cyprus. We investigate lighting simulations of the church at different times of the day, making use of Image-Based Lighting, using High Dynamic Range Environment Maps of photographs and interpolated spectrophotometer data collected on site. Furthermore, the paper explores the benefits and disadvantages of employing unbiased rendering methods such as Path Tracing and Metropolis Light Transport for cultural heritage purposes. ©The Eurographics Association 2009.

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