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Virtual Sky Domes - Making the CIE/ISO Standard General Sky available for CAD-based light simulation software

TitleVirtual Sky Domes - Making the CIE/ISO Standard General Sky available for CAD-based light simulation software
Publication TypeConference Paper
Year of Publication2006
AuthorsWittkopf SK, Yuniarti E, Soon LK, Grobe LO
Conference NameProceedings eSim 2006 Building Performance Simulation Conference
Abstract

The objective of this paper is to establish the VSD as a generic method to set up daylight for different light simulation software. The validation against measured data is published in a prior paper (Wittkopf., 2005). A Virtual Sky Dome (VSD) is a hemisphere comprising of 145 light sources with distinct intensity that resemble the sky luminance distribution for any location, time and sky type. The light properties are calculated by a spreadsheet tool and used to write scene files for the software Lightscape, Radiance and Photopia. Eventually diffuse illuminance under a selected sky type is compared, indicating that the VSD is a generic method to set up daylight.

URLhttp://esim.me.dal.ca/images/proceedings/2006-eSim-Toronto-Proceedings.zip