You may have an old installation of Radiance, before the “-a” option was added to getinfo. What does “rtrace -version” report? The new option was added in version 5.1, released August 2017.
You may have an old installation of Radiance, before the “-a” option was added to getinfo. What does “rtrace -version” report? The new option was added in version 5.1, released August 2017.