Startup Command-Line Options

To launch the Unigine executable file, it is necessary to specify a number of required options on its start-up. They control what rendering API to use, what resolution to set for Unigine window, where resources for initializing the engine are stored, etc. These parameters are either set in the browser or manually via the command line.

Notice

The data_path command-line option is required to run the engine.

The syntax of command-line options is as follows: the full name of the binary executable (32- or 64-bit, development or production version) is specified first and then the start-up options.

Shell commands

main_* -command argument

Shell commands

main_* -command "argument,argument"

Shell commands

main_* -console_command "command argument"

All paths are specified as absolute or relative (to the Unigine executable or data path, as indicated below).

Notice

Almost all command-line options can be changed through the console. All options available via the console are automatically stored in the configuration file unigine.cfg (this way, after the application is quit, they will be restored on the next start-up). Specified CLI options always override the ones stored in the configuration file.

Name	Description	Arguments	Default
-video_mode	Video mode to set window resolution or size	-1 is video_width×video_height 0 is 640×360 1 is 960×540 2 is 1024×576 3 is 1280×720 4 is 1366×768 5 is 1600×900 6 is 1920×1080 7 is 2560×1440 8 is 3840×2160 9 is 640×400 10 is 960×600 11 is 1024×640 12 is 1280×800 13 is 1440×900 14 is 1680×1050 15 is 1920×1200 16 is 2560×1600 17 is 640×480 18 is 800×600 19 is 1024×768 20 is 1280×960 21 is 1280×1024 22 is 1600×1200 23 is 2048×1536 24 is 2560×2048	1
-video_width	Screen width Makes sense only if video_mode=-1	0–10000	0
-video_height	Screen height Makes sense only if video_mode=-1	0–10000	0
-video_resizable	Allows changing a window size on the fly, without having to restart the application	0 is a non-resizable mode 1 is a resizable mode	0
-video_fullscreen	Fullscreen mode	0 is a windowed mode 1 is a fullscreen mode 2 is a fullwindow mode when an application window is rendered without decorations	0

Name	Description	Arguments	Default
-video_app	Graphics API to be used for rendering: No renderer: do not render anything onto the screen (for example, for servers in case of playing over the network) Automatically choose the best option from available ones Direct X 11 OpenGL	"null" "auto" "direct3d11" "opengl"	"auto"
-video_debug	Enables or disables the debug context of OpenGL or DirectX 11.	0 to disable the debug context. 1 to enable the debug context.	0
-video_gamma	Gamma correction value	0.5–3.5	1.0
-video_refresh	Graphics refresh rate	0–200	0
-video_quad_buffer	Enables of disables quad buffered stereo.	0 to disable quad buffering 1 to enable quad buffering	0
-video_surround	Allows rendering of the application across 3 monitors.	0 to disable rendering across 3 monitors 1 to enable rendering across 3 monitors	0
-video_surround_border	Sets the size of monitor bezel compensation in pixels. It is used together with -video_surround 1.	Size of the bezel compensation in pixels.
-video_vsync	Vertical synchronization (synchronize FPS with monitor's refresh rate)	0 - don't use synchronization 1 - use synchronization	0

Name	Description	Arguments	Default
-data_path	Path to the data directory with all resources. The path can be specified relatively to the binary executable or as an absolute path. Notice This command-line option is mandatory.	The arguments can be passed as follows: ../RELATIVE_PATH/ ABSOLUTE_PATH	../
-extern_package	UNG or ZIP package outside the data directory to be added to the file system. This enables to access resources by specifying a relative path to the file only inside the package. The path can be specified relatively to the binary executable or as an absolute path.	The arguments can be passed as follows: ../RELATIVE_PATH/ ABSOLUTE_PATH
-plugin_path	Path to a directory that contains plugins. All of the plugins in this directory will be loaded automatically on the start-up. The path can be specified relatively to the binary executable or as an absolute path.	The arguments can be passed as follows: ../RELATIVE_PATH/ ABSOLUTE_PATH	plugins/

For several directories or packages you should specify each item separately without commas, for example:

Source code

-extern_package ../RELATIVE_PATH_1/ -extern_package ../RELATIVE_PATH_2/ -extern_package ABSOLUTE_PATH

Name	Description	Arguments	Default
-engine_config	The configuration file used to read and store all global engine-related and project-related settings (the path is specified relatively to the binary executable)		unigine.cfg
-engine_log	The log file to be created and used (both an absolute or a relative path can be specified).		log.html
-editor_plugin	Loads the specified editor plugins. This command-line option should be used if the required editor plugins are located outside the data/editor/plugins directory. Paths to plugins should be relative to the data directory. Notice Several comma-separated plugins with no whitespaces can be specified.	../RELATIVE_PATH1/.plugin, ../RELATIVE_PATH2/.plugin, ...
-editor_script	Path to the editor script (specified relative to the data directory)		data/editor/editor.cpp
-gui_path	A path to a GUI skin to be used for the engine interface.		core/gui/
-project_name	Forces the engine to store all changing data (a log file, cache files and the configuration file) in the User profile rather than in a directory with binaries. For that, a directory will be created with a specified PROJECT_NAME.	PROJECT_NAME
-system_script	Path to the system script (specified relative to the data directory)		core/unigine.cpp

Name	Description	Arguments
-console_command	Console command to be used at the engine start-up. Several commands can be separated using the && sequence.	command <arguments>
-extern_plugin	Load a plugin library (the path is specified relative to the binary executable). The library name should go without any prefixes and postfixes. (For example, libNetwork_x86d.so should be passed as "Network".) Several plugins are comma separated (no whitespace). If you want to clear the list of plugins (they are automatically loaded by the engine once specified on the start-up), simply pass "" as an argument to this command.	The arguments can be specified as follows: PLUGIN_NAME PLUGIN_NAME_1,PLUGIN_NAME_2,...,PLUGIN_NAME_N
-extern_define	External definition to be used. Several definitions are comma separated (no whitespace). You can also use the following syntax: -extern_define "A=B,C=D". (For example, -extern_define "TEST=42".) If you want to clear all definitions, simply pass "" as an argument to this command.	The arguments can be specified as follows: DEFINITION_NAME DEFINITION_NAME=VALUE DEFINITION_NAME_1,DEFINITION_NAME_2, DEFINITION_NAME_3=VALUE,...,DEFINITION_NAME_N

Name	Description	Arguments	Default
-sound_app	Sound API to be used: No sound Automatically choose the best sound library option from available ones (OpenAL) OpenAL sound library XAudio2 sound library	null auto openal xaudio2	auto

In This Article:

Video Settings

Graphics Settings

File System

Other Data

Engine-related Settings

Sound Settings