Abstract
A ray-tracing program (GENELUX) has been developed in order to simulate the process in which natural light enters a building through complex window components. In particular, it can simulate diffusing or specular glazing, and can handle reflection on indoor and outdoor reflectors. It is developed to be used as a graphic design tool for architects and designers. It offers a compromise between the power of ray tracing techniques and the necessity of quick computing time. The goal is to provide understanding of how natural light is distributed inside a building in order to let the designer select the most appropriate choice. The program has been used to test the performance of sunlighting systems such as light chimneys, lightshelves and reflective blinds. Some results are presented in this paper.
Published Version
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