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Spectral Domain Decomposition Method for Physically-Based Rendering of Royaumont Abbey

Abstract : In the context of a virtual reconstitution of the destroyed Royaumont abbey church, this paper investigates computer sciences issues intrinsic to the physically-based image rendering. First, a virtual model was designed from historical sources and archaeological descriptions. Then some materials physical properties were measured on remains of the church and on pieces from similar ancient churches. We specify the properties of our lighting source which is a representation of the sun, and present the rendering algorithm implemented in our software Virtuelium. In order to accelerate the computation of the interactions between light-rays and objects, this ray-tracing algorithm is parallelized by means of domain decomposition techniques. Numerical experiments show that the computational time saved by a classic parallelization is much less significant than that gained with our approach.
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https://hal.archives-ouvertes.fr/hal-01649205
Contributor : Guillaume Gbikpi-Benissan Connect in order to contact the contributor
Submitted on : Wednesday, October 20, 2021 - 9:15:08 PM
Last modification on : Tuesday, January 4, 2022 - 3:40:03 PM
Long-term archiving on: : Friday, January 21, 2022 - 8:38:18 PM

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Guillaume Gbikpi-Benissan, Patrick Callet, Frédéric Magoulès. Spectral Domain Decomposition Method for Physically-Based Rendering of Royaumont Abbey. 2016 IEEE Intl Conference on Computational Science and Engineering (CSE) and IEEE Intl Conference on Embedded and Ubiquitous Computing (EUC) and 15th Intl Symposium on Distributed Computing and Applications for Business Engineering (DCABES), Aug 2016, Paris, France. pp.379-385, ⟨10.1109/cse-euc-dcabes.2016.212⟩. ⟨hal-01649205⟩

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