[Radiance-general] example of a street

Jan Hollan [email protected]
Wed, 3 Oct 2001 00:10:48 +0200 (CEST)


I began to learn Radiance today in order to be able to compute simple
outdoor-lighting scenes, but did not succeed much with this powerful
engine. 

Please, could anybody give me an example of an input to give to rad? I
mean, e.g, a row of ten luminaires with a given ies photometric data
(<name>.ies or <name>.dat and <name>.rad, I've them for some producers)
and 7 klm bulbs, 10 m above the asphalt road (7 m wide), 3 m from its
axis, 50 m apart.

Moreover, I need not only a view, but average luminance of the road and
``uniformity ratios'' as well, from the view of a driver (1 m above the
road, 1 m from its axis). (I see, Chapter 7 of Rendering with Radiance
would say it, but it is not on-line and I've not the printed copy.)

dark and peaceful skies,
Jenik Hollan

PS.
 As an advocate of prevention of light pollution
(http://www.astro.cz/darksky is a hint, most my texts are just in Czech
however), I need to be able to compute the same things as lighting
professionals, but with a free software, of course.