[Radiance-general] Parallel light

[Jia Hu]

Hello,

how could I generate some parallel light like sunlight?  Should I use
"source" identifier?

What if I want to generate a parallel light beam (emitting from a tube)? I
am thinking that use a tube and place a point or circular light in that
tube, but it may not be parallel emitting from the tube..


Thanks,

jia
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://www.radiance-online.org/pipermail/radiance-general/attachments/20140219/1a5b5adf/attachment.html>