on radiance-general, Jan Wienold mentioned that the current release of the photon map extension for classic radiance would give incorrect results when illuminance is read out:
"If you are using pmap, don't use the -I option for rtrace - it is giving
you wrong values. This is one of the bugs we will solve in the near
future. If you want to calculate the illuminance, you should calculate a
180 degree fish-eye-picture at your calculation points and integrate
the picture (you can use findglare or evalglare to calc an illuminance
from a picture)"
Is this the case for Radzilla, too?
Thank you, CU Lars.