CASE STUDIES OF A THREE-DIMENSIONAL EXPRESSION OF COLOURED LIGHT FLOW USING VOLUME PHOTON MAPPING
Toshihide Okamoto, Roland Schregle, Nozomu Yosizawa · PROCEEDINGS OF the 29th Quadrennial Session of the CIE · 2019
Considering the light distribution in an interior space is an important aspect in the process of architectural design.In most settings, the surface-bound illuminance/luminance distribution provides general cues describing the lighting environment.However, visualising the flow of light in three-dimensional space, similarly to thermal air-flow, can guide designers by providing an overview of the light field which surrounds people in the space, thus promoting advances in human centred lighting design.In this paper, we will propose a new method to depict the coloured light flow using the volume photon mapping algorithm and report the application results of this method for two case studies.