Radiance technical notes

The first in a series (I guess that means at least two) of
technical notes on Radiance is available for download here:

http://www.iesd.dmu.ac.uk/~jm

This inaugural note has the snappy title: Irradiance Interpolation
Artefacts Caused By Reflections From Glass-Walled Light-Wells

May be useful for anyone using Radiance to predict illuminance
in glass-walled atria etc.

-John Mardaljevic