[Radiance-general] simulation problems

[Lars O. Grobe]

> missing file function.

Hi!

I guess it doesn't find a required function file (something ending with 
.cal). If this is the case, you should set the RAYPATH environment 
variable. It must include the path where the files ending .cal have been 
installed on your computer, often this is a directory called lib or 
library in your radiance installation.

I do not know how to set the variable, as this changes with every 
version of windows and I am not an experienced user of that system at 
all. If you do not know, find it in the documentation or ask some 
windows admin.

Good luck!

Lars.