Hi Rob,
I am using the updated Radiance from LBNL’s GitHub site but the version is not the newest. The files in the package is already compiled. So I used to unzip the tar.gz package and copy the Radiance folder to the directory /usr/local. Then the file ~/.bashrc is edited to add several environment variables as follows and then source the file. Is this installation process correct? I think several problems of commands are linked to the installation. I hope someone can provide the correct and normal installation proceducre. Thank s a lot!
export PATH=/usr/local/radiance/bin:$PATH
export RAYPATH=/usr/local/radiance/lib:$RAYPATH