[Radiance-general] mkillum illuminating outside?

[Lars O. Grobe]

Sorry, this was a stupid mistake of mine. When I replaced the polygon 
surface that I had been using before by a !gensurf-line, I ended up with 
a wrong surface normal. This made my illum become oriented to the 
outside world. As the other surfaces where still facing inwards, the 
culprit surface still got enough light from the sides to illuminate the 
opposite wall. I only found this when I switched to the light modifier 
type using mkillums l+, because than the surface appeared completely 
black when seen from inside (the illum being not visible itself makes 
this kind of debugging more difficult, and I was 100% sure that the 
orientation was ok because I had tested it before - but than there had 
been the polygon).

So, this is my second non-problem reported to the list, sorry for 
messing up your mail boxes...

CU Lars.