> cargo build --release
> ./target/release/pbrt-rust --help
pbrt-rust 0.1
Parse a PBRT scene description file and render it

USAGE:
    pbrt-rust.exe [FLAGS] [OPTIONS] <input>

FLAGS:
    -c, --cat            Print a reformatted version of the input file(s) to standard output. Does not render an image
    -h, --help           Prints help information
    -e, --logtostderr    Print all logging messages to stderr
    -t, --toply          Print a formatted version of input file(s) to standard output and convert all triangle meshes
                         to PLY files. Does not render and image
    -V, --version        Prints version information
    -v, --verbose        set LOG verbosity

OPTIONS:
    -w, --cropwindow <x0> <x1> <y0> <y1>    Specify an image crop window
    -l, --logdir <logdir>                   Specify directory that log files should be writtend to. Default: system temp
                                            directory (e.g $TMPDIR or /tmp)
    -n, --nthreads <nthreads>               Use specified number of threads for rendering [default: 0]
    -o, --outfile <outfile>                 Write the final image to the given filename

ARGS:
    <input>    Path to PBRT scene description file