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