Make figures using this tree's built oiiotool rather than from the /usr/local/cuda/bin:/usr/local/opt/ccache/libexec:/Users/lg/work/osl/osl.lg/dist/macosx/bin:/Users/lg/bin:/Users/lg/lg/bin:/usr/bin:/bin:/usr/sbin:/sbin:/usr/local/bin:/opt/X11/bin:/usr/texbin