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Lighting simulation standards recommend default values for opaque material reflectance values, but these are varied and not based upon measured data. In response, a database of 1,288 opaque material reflectance measurements collected using spectrally specific spectrophotometer sensors is presented. The database is analyzed according to object type, material type, and color. Photopic, melanopic, and wavelength-specific median reflectance data are presented alongside interquartile ranges which allow the reader to assess typical reflectance values and the variance of reflected light from surfaces in the built environment. The lighting materials database is included as supplemental material and has been integrated into a searchable website for use by the lighting simulation public.

Data-Driven Selection of Typical Opaque Material Reflectances for Lighting Simulation