[Radiance-general] an invisible glow

[Carsten Bauer]

Yeah !

somehow this is funny, I just had to look again at the matter ...

In the current secondary ambient material hack, you stick within the
plastic/material/trans range, but it was just a case of adding two lines
to the code to really hand over glows (at least those with fourth param
= 0) as secondary ambient material. So you can have invisible glows with
correct illumination calculation, too. (except for the glow object
itself of course). If anyone needs this freaky stuff, just call me ...

Probably no one will ...  :-)

-Carsten