An inverse daylighting model for CAAD
| Autor: | Gérard Hégron, Vincent Tourre, Jean-Yves Martin |
|---|---|
| Přispěvatelé: | Ambiances architecturales et urbaines (AAU), École Centrale de Nantes (ECN)-Ministère de la Culture et de la Communication (MCC)-Centre National de la Recherche Scientifique (CNRS), Centre de recherche méthodologique d'architecture (CERMA), École Centrale de Nantes (ECN)-Ministère de la Culture et de la Communication (MCC)-Centre National de la Recherche Scientifique (CNRS)-École Centrale de Nantes (ECN)-Ministère de la Culture et de la Communication (MCC)-Centre National de la Recherche Scientifique (CNRS) |
| Rok vydání: | 2008 |
| Předmět: |
computer architectural aided design
Computer science media_common.quotation_subject Inverse lighting 0211 other engineering and technologies Inverse 02 engineering and technology computer.software_genre Computer graphics 021105 building & construction 0202 electrical engineering electronic engineering information engineering Computer Aided Design Computer vision Simulation media_common business.industry ACM: I.: Computing Methodologies/I.3: COMPUTER GRAPHICS/I.3.5: Computational Geometry and Object Modeling/I.3.5.7: Physically based modeling Process (computing) 020207 software engineering [INFO.INFO-MO]Computer Science [cs]/Modeling and Simulation Test case Sky computer graphics Metric (mathematics) Artificial intelligence business computer Daylighting |
| Zdroj: | SCCG SCCG'08 SCCG'08, 2008, Budmerice Castle, Slovakia. ⟨10.1145/1921264.1921283⟩ |
| DOI: | 10.1145/1921264.1921283 |
| Popis: | International audience; This paper presents an inverse daylighting model devoted to the design of building openings. The inverse daylighting model includes sky lighting as well as light reflected by surroundings, and therefore combines near-field and far-field light sources. Input data is a heterogeneous lighting distribution on indoor faces called "lighting intention". Openings are considered as a set of intermediate anisotropic light sources. Therefore the geometric reconstruction problem is seen as a source emittance problem. A pin-hole model generates anisotropic light sources and computes light contribution on each indoor faces. An image metric evaluates the distance between this light contribution and lighting intention. Intermediate light sources which have the smallest distance are selected to be part of opening, and therefore define opening shape. This technique is intended to aid opening design in the early stage of architectural design. Our model is validated by test cases and illustrated by a case study in order to show the opening reconstruction process. |
| Databáze: | OpenAIRE |
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