[Radiance-general] How to generate parallel light

[Jia Hu]

Hello,

how could I generate some parallel light like sunlight?  Should I use
"source" identifier? The parallel light source is located in a room.

What if I want to generate a parallel light beam (emitting from a tube)? I
am currently using a tube and place a spheric shape 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/e1e33cd8/attachment.html>