That's because -g is expecting an argument (the ground reflectance). If you
give "-c" after, it probably calls atof("-c") which returns 0.
In general, Radiance doesn't have very paranoid argument checking. If you
don't give a legal command line, many Radiance programs just muddle through (or
crash if they try reading past the last argument). The exceptions to this are
the rendering programs and a few utilities that call badarg() to check command
argument types.
-Greg
> From: "Randolph M. Fritz" <[email protected]>
> Date: February 7, 2011 1:29:09 PM PST
>
> If -g is given as the last argument to the gensky command, a bus error or
> segmentation fault results. That is:
> gensky 3 31 10:00 -g -c
> works, but
> gensky 3 31 10:00 -c -g
> fails.
> --
> Randolph M. Fritz • [email protected]
> Environmental Energy Technologies Division • Lawrence Berkeley Labs
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