[Radiance-general] RE: modeling challenge

[Michael Kruger]

> I've got a modeling problem.  I'm trying to accurately create 
> this... but so far all I've managed to do is waste a bunch of time.
>  
> http://members.fortunecity.com/dela/
>  
> (note the bottom image is a radiance image)
>  
> Currently I have two individual cylinders each as a rad file. 
>  Then I have a scene file that xforms these into a ~16,000 
> unit array.  That file is then rotated and transformed onto 
> the building by an additional scene file, which is then 
> called by oconv by a "rad" like script.
>  
> It works, but it takes a very long time to oconv (I guess b/c 
> it has to run xform 16000 times and Radiance on Cygwin is 
> very slow at this based on benchmark results) and so far I 
> have been unable to create an actual rendering for some reason.

What is your aim? Are you trying to create an accurate internal lighting analysis, or generate a nice render from the outside? If
the latter, there are all sorts of ways you could cheat - starting with texture / bump / alpha mapping.

Have you tried modeling this without using xform? ie: use some sort of script to generate all the cylinder geometry in their final
positions so that oconv has less work to do?

mike