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VRMod - Experimental Virtual Reality

If you want to play in VR you need to have the vrmod module installed. It allows this addon to interface with SteamVR to access VR tracking, input, and display. It is not required for non-vr players or servers.
Module downloads: github.com/catsethecat/vrmod-module/releases/


This addon attempts to make stock gmod sandbox work in VR. The addon (and module) are unfinished, so don't go in expecting a polished experience. You should not add this to PVP servers or where cheating or stability is a concern. There will be bugs and bad performance, maybe even crashes. It may not even work at all for some people.
Do not buy VR or GMod just for this mod!

1. Subscribe to this workshop addon
2. Install the module (read the beginning of the workshop description)
3. Right click gmod in your steam library, go to properties and disable "SteamVR Desktop Game Theater"
4. Temporarily disable all other addons to avoid conflicts. guide[cdn.discordapp.com]
5. Temporarily remove any GMod launch options
6. Enter a map using the Sandbox gamemode in single player
7. Open the VRMod menu by entering "vrmod" into the console, and press the "Start VR" button
8. Read the rest of this workshop description for any problems you may have encountered.

Default controller bindings are included for the following controllers:
-Vive: image[media.discordapp.net]
-Oculus Touch: image[cdn.discordapp.com]
-WMR: same binding as Vive
-Valve Index: image[cdn.discordapp.com]
-Vive Cosmos: same binding as Oculus Touch

You can view and edit the bindings using SteamVR's binding editor. GMod must be running in VR for it to work. Example.
Console commands can be bound to the controllers like this.

Notable concmds and convars:

Error: module update required
The installer can be used to update the module. If it fails you can also try downloading the .zip and updating the files manually like this.
Some browsers and networks can serve old versions of downloads due to caching systems.
If it still shows an old version in-game, the updated module files have not been added to the correct location. Note that it's possible to have multiple GMod installation locations, especially with multiple drives / partitions.
Controller not tracking
This is likely caused by bad controller bindings. Try resetting your binds to default. If default bindings are not available for your controller type you need to create new binds. Make sure the two controller poses (pose_lefthand and pose_righthand) are mapped to the controllers.
It says module not installed
In 99% of cases this means the module files are not in the right places.
There has been one case of Reshade causing this error.
Crash (game closes) when entering VR
Make sure SteamVR Desktop Game Theater is disabled and the game is not running in it. Try starting VRMod with and without SteamVR already running in the background.
Left eye is gray
Try disabling all other addons.
How do I uninstall this?
The installer contains an uninstall option. You can also manually delete the module files.
does this work on oclus??? rift?? rift S??? quest??? quest 2????
If you can run half-life alyx then this should work too no matter what vr system youre using
How can I improve the performance?
Performance depends mostly on the CPU used. I'd recommend Ryzen 5800x or better.
GPUs above GTX 1070 will likely not affect performance. Native SteamVR headsets (Vive and Index) will likely have the least overhead. As a rule of thumb, you should normally get over 400 fps on desktop in order to run this smoothly in VR in the same situation.
Additional tips: play in single player on an optimized map, disable all other addons, if the map has reflective water try pasting the following into the console: "r_WaterDrawReflection 0; r_cheapwaterend 99999; mat_reloadtextures".
Resolution is low
The resolution can be changed in SteamVR settings. You need to restart vrmod for the setting to take effect.
Wrong height / crouching doesn't work properly / things look too small or big
Stand up in real life, then select "show height adjustment menu" from the VRMod options and use it to adjust your height.
Is this HL2 VR?
No, it just happens to be possible to load up HL2 maps and have them mostly work. Its not a main focus for this addon. The experience might become better with future updates due to general improvements, and also other addons/gamemodes specifically aimed at hl2 vr.
Do my friends need this to see me in VR?
No, only the server needs the workshop addon.
cant click on vr menus / spawnmenu
after starting vrmod you must close the console / pause menu / any other menus that cause the cursor to be free
no audio
start steamvr before gmod and make sure you hear everything in your headset before starting vrmod
if the audio output device changes while the game is running it might break

If you want to make a compatible addon: vrmod lua api
Compatible weapon demos: Guns, Longbow

If you want to make a standalone VR addon and only need the core VR functionality without bloat, you can directly use the VRMod module. Function descriptions are included in its readme.
Standalone VR game demo: G-Saber.

If you have any questions you can ask me on discord.

-UselessGhost for sharing tips and their code in the workshop discussions, which I have used to improve the performance of mirroring the game to the headset.
-willox for updating gmod which has made VR work better, as well as providing solutions for some issues with the module