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Console Commands and Variables Reference
This document reviews useful Unreal Engine console commands and console variables available for Meta Quest development.
Typically, you open the console by pressing the ~ (tilde) key. However, opening the console window in Unreal varies by operating system and configuration, so you should consult the Unreal Engine documentation.
For a list of all commands, you can type
dumpconsolecommands in the console.Unreal Engine VR Commands
Following are some commands for general VR development.
| Task | Console Command |
|---|---|
Prints the version info for the current device | vr.HMDVersion |
Enable or disable the HMD | vr.bEnableHMD [bool] |
Enable or disable Stereo mode | vr.bEnableStereo [bool] |
Change world units to meters scale | vr.WorldToMetersScale [float] |
Enable or disable the hidden-area mask | vr.HiddenAreaMask [bool] |
Set screen mode | vr.SpectatorScreenMode [0..5] where 0=Disabled, 1=SingleEye Letterboxed, 2=Undistorted, 3=Distorted, 4=SingleEye, 5=SingleEye Cropped |
Set tracking origin to floor or eye | vr.TrackingOrigin [floor/eye] |
Reset the position and orientation and apply yaw in degrees | vr.HeadTracking.Reset [yaw] |
Reset position only | vr.HeadTracking.ResetPosition |
Reset orientation only and apply yaw in degrees | vr.HeadTracking.ResetOrientation [yaw] |
Shows current head tracking status | vr.HeadTracking.Status |
Meta Quest Commands
The following are some commands specific to Quest VR development.
| Task | Console Command |
|---|---|
vr.oculus.ShowToolWindow | |
Initiate a CPU stress test | vr.oculus.Stress.CPU [PerFrameTime [TotalTimeLimit]] |
Initiate a GPU stress test | vr.oculus.Stress.GPU [LoadMultiplier [TimeLimit]] |
Reset the stress tester and stop all currently running stress tests. | vr.oculus.Stress.Reset |
Meta Quest Mixed Reality Commands
The following are some Quest mixed-reality commands. Note that Chroma key settings allow for fine-tuned control of how the video and application streams are composited.
Use these settings to set the reference color of the green screen and control various thresholds at which video pixels are included or excluded from the final frame.
| Task | Console Command |
|---|---|
Set the composition to post-process meaning the casting window includes the background and foreground view. | oculus.mr.ExternalCompositionPostProcess |
Override the parameters with the specified values. | oculus.mr.OverrideParameters [0,1] |
Command-line Parameters for Mixed-Reality Sample
Once you package the sample scene, you may launch it with the parameters listed in the following table.
You may set your application to launch with mixed reality capture enabled in Blueprints for debugging
purposes only. The Blueprint setting
bCastingAutoStart is automatically disabled when you build your
package.| Task | Console Command |
|---|---|
Launch in direct composition mode with MirrorWindow projection. In this case the Quest MR Output window would get minimized automatically | -mxr_project_to_mirror_window |
Launch in MultiView mode | -mxr_open_multiview |
Automatically open the Quest MR Output window in the DirectComposition mode | -mxr_open_direct_composition |
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Virtual reality / Meta Horizon
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