blender 2.81 linux arguments

Blender 2.81 (sub 16)
Usage: blender [args ...] [file] [args ...]

Render Options:
-b or --background
        Run in background (often used for UI-less rendering).

-a or --render-anim
        Render frames from start to end (inclusive).

-S or --scene <name>
        Set the active scene <name> for rendering.

-f or --render-frame <frame>
        Render frame <frame> and save it.

        * +<frame> start frame relative, -<frame> end frame relative.
        * A comma separated list of frames can also be used (no spaces).
        * A range of frames can be expressed using '..' separator between the first and last frames (inclusive).


-s or --frame-start <frame>
        Set start to frame <frame>, supports +/- for relative frames too.

-e or --frame-end <frame>
        Set end to frame <frame>, supports +/- for relative frames too.

-j or --frame-jump <frames>
        Set number of frames to step forward after each rendered frame.

-o or --render-output <path>
        Set the render path and file name.
        Use '//' at the start of the path to render relative to the blend-file.

        The '#' characters are replaced by the frame number, and used to define zero padding.

        * 'animation_##_test.png' becomes 'animation_01_test.png'
        * 'test-######.png' becomes 'test-000001.png'

        When the filename does not contain '#', The suffix '####' is added to the filename.

        The frame number will be added at the end of the filename, eg:
        # blender -b animation.blend -o //render_ -F PNG -x 1 -a
        '//render_' becomes '//render_####', writing frames as '//render_0001.png'

-E or --engine <engine>
        Specify the render engine.
        Use '-E' help to list available engines.

-t or --threads <threads>
        Use amount of <threads> for rendering and other operations
        [1-1024], 0 for systems processor count.


Format Options:
-F or --render-format <format>
        Set the render format.
        Valid options are:
        'TGA' 'RAWTGA' 'JPEG' 'IRIS' 'IRIZ' 'AVIRAW' 'AVIJPEG' 'PNG' 'BMP'

        Formats that can be compiled into Blender, not available on all systems:
        'HDR' 'TIFF' 'OPEN_EXR' 'OPEN_EXR_MULTILAYER' 'MPEG' 'CINEON' 'DPX' 'DDS' 'JP2'

-x or --use-extension <bool>
        Set option to add the file extension to the end of the file.


Animation Playback Options:
-a <options> <file(s)>
        Instead of showing Blender's user interface, this runs Blender as an animation player,
        to view movies and image sequences rendered in Blender (ignored if '-b' is set).

        Playback Arguments:

        -p <sx> <sy>
                Open with lower left corner at <sx>, <sy>.
        -m
                Read from disk (Do not buffer).
        -f <fps> <fps-base>
                Specify FPS to start with.
        -j <frame>
                Set frame step to <frame>.
        -s <frame>
                Play from <frame>.
        -e <frame>
                Play until <frame>.


Window Options:
-w or --window-border
        Force opening with borders.

-W or --window-fullscreen
        Force opening in fullscreen mode.

-p or --window-geometry <sx> <sy> <w> <h>
        Open with lower left corner at <sx>, <sy> and width and height as <w>, <h>.

-M or --window-maximized
        Force opening maximized.

-con or --start-console
        Start with the console window open (ignored if '-b' is set), (Windows only).

--no-native-pixels
        Do not use native pixel size, for high resolution displays (MacBook 'Retina').

--no-window-focus
        Open behind other windows and without taking focus.


Python Options:
-y or --enable-autoexec
        Enable automatic Python script execution.

-Y or --disable-autoexec
        Disable automatic Python script execution (pydrivers & startup scripts), (compiled as non-standard default).


-P or --python <filename>
        Run the given Python script file.

--python-text <name>
        Run the given Python script text block.

--python-expr <expression>
        Run the given expression as a Python script.

--python-console
        Run Blender with an interactive console.

--python-exit-code <code>
        Set the exit-code in [0..255] to exit if a Python exception is raised
        (only for scripts executed from the command line), zero disables.

--addons <addon(s)>
        Comma separated list of add-ons (no spaces).


Logging Options:
--log <match>
        Enable logging categories, taking a single comma separated argument.
        Multiple categories can be matched using a '.*' suffix,
        so '--log "wm.*"' logs every kind of window-manager message.
        Use "^" prefix to ignore, so '--log "*,^wm.operator.*"' logs all except for 'wm.operators.*'
        Use "*" to log everything.

--log-level <level>
        Set the logging verbosity level (higher for more details) defaults to 1,
        use -1 to log all levels.

--log-show-basename
        Only show file name in output (not the leading path).

--log-show-backtrace
        Show a back trace for each log message (debug builds only).

--log-show-timestamp
        Show a timestamp for each log message in seconds since start.

--log-file <filename>
        Set a file to output the log to.


Debug Options:
-d or --debug
        Turn debugging on.

        * Enables memory error detection
        * Disables mouse grab (to interact with a debugger in some cases)
        * Keeps Python's 'sys.stdin' rather than setting it to None

--debug-value <value>
        Set debug value of <value> on startup.


--debug-events
        Enable debug messages for the event system.

--debug-ffmpeg
        Enable debug messages from FFmpeg library.

--debug-handlers
        Enable debug messages for event handling.

--debug-libmv
        Enable debug messages from libmv library.

--debug-cycles
        Enable debug messages from Cycles.

--debug-memory
        Enable fully guarded memory allocation and debugging.

--debug-jobs
        Enable time profiling for background jobs.

--debug-python
        Enable debug messages for Python.

--debug-depsgraph
        Enable all debug messages from dependency graph.

--debug-depsgraph-eval
        Enable debug messages from dependency graph related on evaluation.

--debug-depsgraph-build
        Enable debug messages from dependency graph related on graph construction.

--debug-depsgraph-tag
        Enable debug messages from dependency graph related on tagging.

--debug-depsgraph-no-threads
        Switch dependency graph to a single threaded evaluation.

--debug-depsgraph-time
        Enable debug messages from dependency graph related on timing.

--debug-depsgraph-pretty
        Enable colors for dependency graph debug messages.

--debug-gpu
        Enable gpu debug context and information for OpenGL 4.3+.

--debug-gpumem
        Enable GPU memory stats in status bar.

--debug-gpu-shaders
        Enable GPU memory stats in status bar.

--debug-gpu-force-workarounds
        Enable GPU memory stats in status bar.

--debug-wm
        Enable debug messages for the window manager, shows all operators in search, shows keymap errors.

--debug-all
        Enable all debug messages.

--debug-io
        Enable debug messages for I/O (collada, ...).


--debug-fpe
        Enable floating point exceptions.

--disable-crash-handler
        Disable the crash handler.

--disable-abort-handler
        Disable the abort handler.


Misc Options:
--app-template <template>
        Set the application template (matching the directory name), use 'default' for none.

--factory-startup
        Skip reading the BLENDER_STARTUP_FILE in the users home directory.

--enable-event-simulate
        Enable event simulation testing feature 'bpy.types.Window.event_simulate'.


--env-system-datafiles
        Set the BLENDER_SYSTEM_DATAFILES environment variable.

--env-system-scripts
        Set the BLENDER_SYSTEM_SCRIPTS environment variable.

--env-system-python
        Set the BLENDER_SYSTEM_PYTHON environment variable.


-noaudio
        Force sound system to None.

-setaudio
        Force sound system to a specific device.
        'NULL' 'SDL' 'OPENAL' 'JACK'.


-h or --help
        Print this help text and exit.

-R
        Register blend-file extension, then exit (Windows only).

-r
        Silently register blend-file extension, then exit (Windows only).

-v or --version
        Print Blender version and exit.

--
        End option processing, following arguments passed unchanged. Access via Python's 'sys.argv'.


Other Options:
/?
        Print this help text and exit (windows only).

--debug-freestyle
        Enable debug messages for Freestyle.

--verbose <verbose>
        Set logging verbosity level for debug messages which supports it.

--disable-library-override
        Enable Library Override features in the UI.


Argument Parsing:
        Arguments must be separated by white space, eg:
        # blender -ba test.blend
        ...will exit since '-ba' is an unknown argument.
Argument Order:
        Arguments are executed in the order they are given. eg:
        # blender --background test.blend --render-frame 1 --render-output '/tmp'
        ...will not render to '/tmp' because '--render-frame 1' renders before the output path is set.
        # blender --background --render-output /tmp test.blend --render-frame 1
        ...will not render to '/tmp' because loading the blend-file overwrites the render output that was set.
        # blender --background test.blend --render-output /tmp --render-frame 1
        ...works as expected.

Environment Variables:
  $BLENDER_USER_CONFIG      Directory for user configuration files.
  $BLENDER_USER_SCRIPTS     Directory for user scripts.
  $BLENDER_SYSTEM_SCRIPTS   Directory for system wide scripts.
  $BLENDER_USER_DATAFILES   Directory for user data files (icons, translations, ..).
  $BLENDER_SYSTEM_DATAFILES Directory for system wide data files.
  $BLENDER_SYSTEM_PYTHON    Directory for system Python libraries.
  $TMP or $TMPDIR           Store temporary files here.
  $SDL_AUDIODRIVER          LibSDL audio driver - alsa, esd, dma.
  $PYTHONHOME               Path to the Python directory, eg. /usr/lib/python.