List of Command Line Parameters

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This is a list of user level Command Line Parameters that players have access to use while launching City of Heroes/Villains, in alphabetical order. In cases where the command line parameter can also be used as a slash command, the launch parameters will link to the slash command page.

Ka-Pow!

Working Command Line Parameters        ★ = Using slash Command page

-assetpath options Points the game client to the piggs folders, in load order.
-auth Auth server IP string.
-compatiblecursors Enables useage of basic windows mouse cursors instead of graphical cursors (command line option).
-console Turns on debug console (where printfs go).
-CoV Sets your login theme to city of villains with launch parameters.
-demoplay Start playing the specified demo file.
-enablevbos Turns on vertex buffer object extension
-exitlaunch Set program to run when game exits.
-fullRelight Do not cap number of relit vertices per frame.
-fullscreen Sets video mode to fullscreen.
-gfxreset Resets all graphics settings and launches the game in windowed mode.
-legacylayout Enables existing installs of the game client to find certain files when you aren't launching the game with Tequila, Island Rum, or the Homecoming launcher.
-lodbias Multiplier for LOD (Loss of Detail) distances for entities (alters the Character Detail setting in Options).
-maxfps Sets the maximum limit for frames per second that a player's client can utilize, whether the game is in focus or not.
-maxInactiveFps Limits max frames per second while the game is not in the foreground.
-maxtexunits Limits number of textures used, set to 4 to emulate GF 4/5 path
-mtu Sets the mtu size for client-generated packets (command line option).
-no_nv_clip Disable using nvidia specific vertex profiles for user clipping. (use on command line).
-noATI Disables use of R200 shader path, uses only ARB shaders instead.
-nodebug Turns off error printing.
-noNV Disables use of NV1X/NV2X shader path, uses only ARB shaders instead.
-nooverride Disallows override files.
-noPBuffers Disables PBuffers. Active.
-noperforce Disable perforce usage for life of the app.
-nopixshaders Turns off pixel shaders.
-nopopup Enable or disable popup error dialogs.
-norenderthread Tell the client not to use a separate thread for rendering graphics.
-noRTT Disables RTT PBuffers.
-noversioncheck Allow connecting to wrong version of mapserver.
-pbuftest Thrash PBuffers.
-port Sets a network port.
-profile Set profile for launching the game (live / diag / beta / pre).
-profiling_memory Set the number of mb of memory to use for profiling.
-project Set project registry key (coh / cohtest / cohbeta).
-reduce_mip Reduces the resolution of textures to only use the reduced (mip-map) textures. must pass as command line arg -reducemip or you need to subsequently run unloadgfx.
-renderthread Tell the client to use a separate thread for rendering graphics.
-screen Sets x and y screen dimensions.
-shader_init_logging Set to 1 to view shader initialization details in the console.
-stopinactivedisplay Stops rendering when the game is not the foreground application.
-texwordeditor Edit the text layout for translatable textures.
-uiskin Sets your preferred login theme.
-useARBassembly Forces use of arb assembly shader path.
-usecelshader Enables or disables the cel shader graphics setting.
-useCG Use CG shaders instead of ARB.
-usefp Use a floating point render target for hdr lighting effects if available.
-usePBuffers Force use of PBuffers even if on a suspected unsupported video card. In OpenGL, a pbuffer is an off-screen render target that acts like the default framebuffer.
-useTexEnvCombine Forces use of texture_env_combine shader path.
-vis_scale Controls draw distance for World Detail (1.0=default).






They're dead, Jim!

Unknown or Non-functional Command Line Parameters

 
-authserver The IP address for the authorization server for user/password login. (Removed)
-dxt5nm_normal_maps 1 = use dxt5nm cvompressed normal maps, 0 = use dxt5 normal maps (old mode).
-forcecrashcheck Disabled. Used to be part of the verify files routine after the game client crashed.
-ignorebaddrivers Issue 25: The -ignoreBadDrivers command line parameter will hide the popup and warnings about your drivers being out of date. You will still get a warning if the driver is in a (very small) list of drivers that are known to cause problems.
-launcher Tells the game that the client was started with the NCsoft Launcher instead of the CohUpdater.
-launchedfromsteam Tells the game that the client was started with the Valve Steam launcher. If so, the Steam SDK is initialized.
-lwc LWC = "Light Weight Client". (crashes game client)
-noARBfp Disables use of ARBfp shader path, uses vendor-specific fragment shaders instead. (crashes game client)
-NV1X Forces NV1X rendering path. GPU-acceleration of a style of 2D graphics known as path rendering all CUDA-capable NVIDIA GPUs (crashes game client on system with non-Nvidia GPU)
-NV2X Forces NV2X rendering path. (crashes game client on system with non-Nvidia GPU)
-noStencilShadows Command line option to disable stencil shadows.
-novbos Turns off vertex buffer object extension. (crashes game client)
-noverify Skip verify. This command prevented the CohUpdater from verifying files. Although not disabled, the command now has little or no functionality since the Homecoming Launcher now performs the file verification function.
-patchdir Command removed by Homecoming in Issue 26 Page 5.
-patchversion Command removed by Homecoming in Issue 26 Page 5.
-priorityBoost Set the game process priority to Above Normal rather than Normal when running in the foreground.
-profile_spikes Save profiles of any frame longer than the specified time in ms. (non-functional)
-R200 Forces R200 rendering path. (crashes game client)
-safemode number Forces most compatible graphics and audio settings. (non-functional)
-setlocale Command line argument to change the locale of the game client. (Non-functional for players). See /playerlocale for more info.
-setregion Sets one of two "regions" for the game client: EU and NA. Default value is empty or N/A, meaning the "world" region. (non-functional for players)
-testgameprogress Test the progress of the game. (Non-functional for players)
-verify Although not disabled, the command now has little or no functionality since the Homecoming Launcher now performs the file verification function. Dev Notes: // This function is needed if we launch from NcLauncher because Launcher does not validate the installation before running. COHUpdater does a validate so we don't do another here in that case. Enable this block if only want to verify when -verify passed on command line.

† It's possible that many of these command line parameters work, but how to get them to work is currently unknown. Maybe you'd have better luck in figuring some of these out? We could use your help...


Note: Commands that are colored red merely indicate that the command does not have an individual wiki page.