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UV: Document pack islands features and new ui #104468

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Chris Blackbourn wants to merge 63 commits from Chris_Blackbourn/blender-manual:uv_pack_islands into blender-v3.6-release
pull from: Chris_Blackbourn/blender-manual:uv_pack_islands
merge into: blender:blender-v3.6-release

When changing the target branch, be careful to rebase the branch in your fork to match. See documentation.
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manual/advanced/command_line/arguments.rst
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@ -1,6 +1,5 @@
.. DO NOT EDIT THIS FILE, GENERATED BY 'blender_help_extract.py'
CHANGES TO THIS FILE MUST BE MADE IN BLENDER'S SOURCE CODE, SEE:
https://projects.blender.org/blender/blender/src/branch/main/source/creator/creator_args.c
@ -10,11 +9,9 @@
Command Line Arguments
**********************
Blender |BLENDER_VERSION|
Usage: blender [args ...] [file] [args ...]
.. _command-line-args-render-options:
Render Options
@ -22,10 +19,13 @@ Render Options
``-b``, ``--background``
Run in background (often used for UI-less rendering).
``-a``, ``--render-anim``
Render frames from start to end (inclusive).
``-S``, ``--scene`` ``<name>``
Set the active scene ``<name>`` for rendering.
``-f``, ``--render-frame`` ``<frame>``
Render frame ``<frame>`` and save it.
@ -33,12 +33,16 @@ Render Options
* 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``, ``--frame-start`` ``<frame>``
Set start to frame ``<frame>``, supports +/- for relative frames too.
``-e``, ``--frame-end`` ``<frame>``
Set end to frame ``<frame>``, supports +/- for relative frames too.
``-j``, ``--frame-jump`` ``<frames>``
Set number of frames to step forward after each rendered frame.
``-o``, ``--render-output`` ``<path>``
Set the render path and file name.
Use ``//`` at the start of the path to render relative to the blend-file.
@ -57,14 +61,15 @@ Render Options
blender -b animation.blend -o //render_ -F PNG -x 1 -a
``//render_`` becomes ``//render_####``, writing frames as ``//render_0001.png``
``-E``, ``--engine`` ``<engine>``
Specify the render engine.
Use ``-E help`` to list available engines.
``-t``, ``--threads`` ``<threads>``
Use amount of ``<threads>`` for rendering and other operations
[1-1024], 0 for systems processor count.
.. _command-line-args-cycles-render-options:
Cycles Render Options
@ -72,8 +77,9 @@ Cycles Render Options
Cycles add-on options must be specified following a double dash.
--cycles-device OPTIX
Set the device used for rendering. Options: CPU, CUDA, OPTIX, HIP, ONEAPI, METAL.
``--cycles-device`` ``<device>``
Set the device used for rendering.
Valid options are: ``CPU`` ``CUDA`` ``OPTIX`` ``HIP`` ``ONEAPI`` ``METAL``.
Append +CPU to a GPU device to render on both CPU and GPU.
@ -83,10 +89,9 @@ Cycles add-on options must be specified following a double dash.
blender -b file.blend -f 20 -- --cycles-device OPTIX
--cycles-print-stats
``--cycles-print-stats``
Log statistics about render memory and time usage.
.. _command-line-args-format-options:
Format Options
@ -95,10 +100,11 @@ Format Options
``-F``, ``--render-format`` ``<format>``
Set the render format.
Valid options are:
``TGA`` ``RAWTGA`` ``JPEG`` ``IRIS`` ``IRIZ`` ``AVIRAW`` ``AVIJPEG`` ``PNG`` ``BMP``
``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`` ``WEBP``
``HDR`` ``TIFF`` ``OPEN_EXR`` ``OPEN_EXR_MULTILAYER`` ``MPEG`` ``CINEON`` ``DPX`` ``DDS`` ``JP2`` ``WEBP``.
``-x``, ``--use-extension`` ``<bool>``
Set option to add the file extension to the end of the file.
@ -118,7 +124,7 @@ Animation Playback Options
Open with lower left corner at ``<sx>``, ``<sy>``.
``-m``
Read from disk (Do not buffer).
``-f`` ``<fps>`` ``<fps-base>``
``-f`` ``<fps>`` ``<fps_base>``
Specify FPS to start with.
``-j`` ``<frame>``
Set frame step to ``<frame>``.
@ -138,16 +144,22 @@ Window Options
``-w``, ``--window-border``
Force opening with borders.
``-W``, ``--window-fullscreen``
Force opening in fullscreen mode.
``-p``, ``--window-geometry`` ``<sx>`` ``<sy>`` ``<w>`` ``<h>``
Open with lower left corner at ``<sx>``, ``<sy>`` and width and height as ``<w>``, ``<h>``.
``-M``, ``--window-maximized``
Force opening maximized.
``-con``, ``--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.
@ -158,23 +170,31 @@ Python Options
==============
``-y``, ``--enable-autoexec``
Enable automatic Python script execution (default).
Enable automatic Python script execution.
``-Y``, ``--disable-autoexec``
Disable automatic Python script execution (pydrivers & startup scripts).
Disable automatic Python script execution (pydrivers & startup scripts), (default).
``-P``, ``--python`` ``<filepath>``
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.
``--python-use-system-env``
Allow Python to use system environment variables such as ``PYTHONPATH`` and the user site-packages directory.
``--addons`` ``<addon(s)>``
Comma separated list (no spaces) of add-ons to enable in addition to any default add-ons.
@ -192,15 +212,20 @@ Logging Options
so ``--log "*undo*"`` logs every kind of undo-related 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`` ``<filepath>``
Set a file to output the log to.
@ -216,75 +241,109 @@ Debug Options
* 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-depsgraph-uuid``
Verify validness of session-wide identifiers assigned to ID datablocks.
``--debug-ghost``
Enable debug messages for Ghost (Linux only).
``--debug-wintab``
Enable debug messages for Wintab.
``--debug-gpu``
Enable GPU debug context and information for OpenGL 4.3+.
``--debug-gpu-force-workarounds``
Enable workarounds for typical GPU issues and disable all GPU extensions.
``--debug-gpu-disable-ssbo``
Disable usage of shader storage buffer objects.
``--debug-gpu-renderdoc``
Enable Renderdoc integration for GPU frame grabbing and debugging.
``--debug-wm``
Enable debug messages for the window manager, shows all operators in search, shows keymap errors.
``--debug-xr``
Enable debug messages for virtual reality contexts.
Enables the OpenXR API validation layer, (OpenXR) debug messages and general information prints.
``--debug-xr-time``
Enable debug messages for virtual reality frame rendering times.
``--debug-all``
Enable all debug messages.
``--debug-io``
Enable debug messages for I/O (Collada, ...).
``--debug-fpe``
Enable floating-point exceptions.
``--debug-exit-on-error``
Immediately exit when internal errors are detected.
``--debug-freestyle``
Enable debug messages for Freestyle.
``--disable-crash-handler``
Disable the crash handler.
``--disable-abort-handler``
Disable the abort handler.
``--verbose`` ``<verbose>``
Set the logging verbosity level for debug messages that support it.
@ -305,51 +364,60 @@ Misc Options
``--open-last``
Open the most recently opened blend file, instead of the default startup file.
``--app-template`` ``<template>``
Set the application template (matching the directory name), use ``default`` for none.
``--factory-startup``
Skip reading the startup.blend in the users home directory.
Skip reading the ``startup.blend`` 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.
``None`` ``SDL`` ``OpenAL`` ``CoreAudio`` ``JACK`` ``PulseAudio`` ``WASAPI``.
``-h``, ``--help``
Print this help text and exit.
``/?``
Print this help text and exit (Windows only).
``-r``, ``--register``
Register blend-file extension for current user, then exit (Windows only).
``--register-allusers``
Register blend-file extension for all users, then exit (Windows only).
``--unregister``
Unregister blend-file extension for current user, then exit (Windows only).
``--unregister-allusers``
Unregister blend-file extension for all users, then exit (Windows only).
``-v``, ``--version``
Print Blender version and exit.
``--``
End option processing, following arguments passed unchanged. Access via Python's ``sys.argv``.
.. _command-line-args-other-options:
Other Options
=============
.. _command-line-args-argument-parsing:
Argument Parsing
@ -363,7 +431,6 @@ Arguments must be separated by white space, eg:
...will exit since ``-ba`` is an unknown argument.
.. _command-line-args-argument-order:
Argument Order
@ -373,7 +440,7 @@ Arguments are executed in the order they are given. eg:
.. code-block:: sh
blender --background test.blend --render-frame 1 --render-output '/tmp'
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.
@ -389,7 +456,6 @@ Arguments are executed in the order they are given. eg:
...works as expected.
.. _command-line-args-environment-variables:
Environment Variables