Approved Work Item
ISO/CIE AWI 25176
Light and lighting — Daylight in buildings — BSDF data generation for complex fenestration systems
Reference number
ISO/CIE AWI 25176
Edition 1
Approved Work Item
ISO/CIE AWI 25176
89258
A working group has prepared a draft.

Abstract

This document specifies procedures

a) for characterizing angle-dependent transmittance and reflectance properties of complex fenestration systems (CFS) and

b) for generating tabular BSDF data sets from the measured or simulated data for use as input to simulation tools.

This document establishes generally applicable methods for tabulated BSDF characterization of CFS for evaluation of performance criteria based on integral radiation quantities (illuminance, solar irradiance) and thus on definitions and specifications for generating “low-resolution” BSDF data. The subsequent derivation of analytical models in order to characterize some systems with a large number of similar variations is not included in this document.

General information

  •  : Under development
    : New project registered in TC/SC work programme [20.00]
  •  : 1
  • ISO/TC 274
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