[Radiance-general] Strange problem using -vtl to cut sections

[Carsten Bauer]

Hi Robert

when reading your posting I just got a spontaneous idea - maybe the
light stems from the constant ambient term (-av ...) which gets
activated on every rayhit. Although your boxes are closed, de facto
they're open because of the cutoff-plane, and rays hit inside and will
get assigned the constant ambient term (in the same manner as a scene
with no sources present). Maybe, maybe ..

Carsten