Real-time solar exposure simulation in complex cities
In urban design, estimating solar exposure on complex city models is crucial but existing solutions typically focus on simplified building models and are too demanding in terms of memory and computational time. In this paper, we propose an interactive technique that estimates solar exposure on detai...
| Autores: | , , , , |
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| Tipo de recurso: | artículo |
| Fecha de publicación: | 2017 |
| País: | España |
| Institución: | Universitat Politècnica de Catalunya (UPC) |
| Repositorio: | UPCommons. Portal del coneixement obert de la UPC |
| Idioma: | inglés |
| OAI Identifier: | oai:upcommons.upc.edu:2117/403435 |
| Acceso en línea: | https://hdl.handle.net/2117/403435 https://dx.doi.org/10.1111/cgf.13152 |
| Access Level: | acceso abierto |
| Palabra clave: | Three-dimensional imaging in architecture Sustainable architecture Illumination rendering Rendering Real-time rendering Visibility determination Imatgeria tridimensional en arquitectura Arquitectura sostenibl Àrees temàtiques de la UPC::Informàtica::Infografia |
| Sumario: | In urban design, estimating solar exposure on complex city models is crucial but existing solutions typically focus on simplified building models and are too demanding in terms of memory and computational time. In this paper, we propose an interactive technique that estimates solar exposure on detailed urban scenes. Given a directional exposure map computed over a given time period, we estimate the sky visibility factor that serves to evaluate the final exposure at each visible point. This is done using a screen-space method based on a two-scale approach, which is geometry independent and has low storage costs. Our method performs at interactive rates and is designer-oriented. The proposed technique is relevant in architecture and sustainable building design as it provides tools to estimate the energy performance of buildings as well as weathering effects in urban environments. |
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