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Tips tricks 1

Registry Key developer settings:

  • Obscurely worded, but this seems to disable the Health and safety warning:
  HKLM\Software\WOW6432Node\Oculus DWORD: ShowStartupPanelBackup = 1

 HKEY_LOCAL_MACHINE\SOFTWARE\Oculus VR, LLC\LibOVR\PurgatoryHudEnabled", REG_DWORD or REG_SZ values of 0 or 1.
  • Keep the screen on (may cause burn in):
  HKLM\Software\WOW6432Node\Oculus: AllowScreenBurnIn = 1
  • Debug console:
  HKLM\Software\WOW6432Node\Oculus: ShowServiceConsole = 1
  • Disable Oculus Home from auto-launching:

Rename the .exe (C:\Program Files (x86)\Oculus\Support\oculus-home\PC_OculusHome.exe)

  • Disable updates
  [HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Oculus VR, LLC\Oculus\Config]

  "CoreChannel"="Rift18" (change it to LIVE to continue updates)

Distributed Shader Compilation#


Enable HMD head tracking without being in VR mode:

Set Editor Settings->Player->ViewportGetsHMDControl to true & console command “hmdpos enforce on” to enable head tracking in Unreal’s Viewport or PIE mode without enabling stereo. Very useful for debugging multiplayer or testing hmd functionality like avatars.

Don’t minimize the editor window while in VR Mode

  • You can maintain the Editor window during VR Preview mode by commenting out this line in PlayLevel.cpp:
//TODO: ikrimae: Pipe disabling this based on a config variable. Not sure if this will crash the editor & also it's a perf hit 

Rename Oculus Home exe to get rid of it (C:\Program Files (x86)\Oculus\Support\oculus-home\PC_OculusHome.exe)

Get rid of purgatory UI (L,C,F):

  • HKEY_LOCAL_MACHINE\SOFTWARE\Oculus VR, LLC\LibOVR\PurgatoryHudEnabled”, REG_DWORD or REG_SZ values of 0 or 1.

How to detect if VR Headset is Vive or Oculus

if (GEngine->HMDDevice.IsValid() && GEngine->HMDDevice->IsHMDEnabled()) 
                if (GEngine->HMDDevice->GetHMDDeviceType() == EHMDDeviceType::DT_SteamVR)  
                        // BLAH!

Reference From

Useful Oculus console commands:#

Stereo/HMD Configuration
stereo on | off | toggle Stereo mode on/off
stereo hmd Turns stereo on and re-direct rendering to the Rift.
hmd enable | disable Completely disables or re-enables HMD
hmd pd 0.8 Sets pixel density in the center (default is 1.0).
hmd sp 125 Overrides default screenpercentage for stereo mode. Deprecated, use ‘hmd pd xxx’ instead.
hmd sp reset Resets to original r.ScreenPercentage value. Deprecated, use ‘hmd pd 1’ instead.
hmd mirror [on|off|toggle] Enables/disables/toggles mirroring in a window (for “Application Only” mode only).
hmd mirror 800x600 Sets mirror window dimension (for Direct mode only).
hmd mirror mode 0|1|2 Sets mirror window mode: 0 - standard stereo distorted view, 1 - stereo undistorted view, 2 - mono viewa (a single eye)
hmd qahead [on|off] Turns QueueAhead on / off or toggles it. Use ‘hmd stats’ to check its current state.
stereo e=0.064 Eye distance (m). Use ‘stereo reset’ to restore original value.
stereo w2m=100 Overrides default worldunits-to-meters scale. Use ‘stereo reset’ to restore original value.
stereo ncp=10 fcp=10000 Overrides near clipping and/or far clipping planes for stereo rendering (in cm). Use ‘stereo reset’ to restore original value.
stereo show Shows current ipd and head model offset
stereo reset Resets stereo settings
hmdpos on | off Enables/disables positional tracking.
hmdpos reset Resets forward direction and ‘zero’ position
hmdpos reset -37 Resets forward direction and apply yaw rotation (in degrees) and ‘zero’ position
hmdpos show Shows status of positional tracking.
hmdpos enforce Toggles head tracking even if not in stereo (for testing purposes).
Stereo/HMD Internals
hmdmag on | off Turns magnetometer on/off
hmdmag show Shows state of magnetometer
hmd stats Shows HMD-related stats.
hmd grid Toggles lens-centered grid.
hmd setint PerfHudMode [0..4] Turns on [1..x] or off [0] builtin Performance HUD, modes 1-4.
hmd setint DebugHudStereoMode [0..3] Turns on [1..x] or off [0] builtin debug stereo HUD, modes 1-3.
hmddbg showcamera [off | toggle] Draws a tracking camera frustum in the game’s world.
hmddbg cubes [on | off | toggle] Draws a ‘sea of cubes’ over the existing scene.
hmd updateongt on | off Turns on/off update-on-gamethread mode (for debugging). On by default.
hmd updateonrt on | off Turns on/off update-on-renderthread mode for lower latency. On by default.
hmdversion Prints Oculus SDK version used and Oculus Plugin info
uncapfps Uncaps FPS (allows FPS > 62); to restore cap - “set Engine bSmoothFrameRate 1”; t.maxfps could also be used for the same purpose.

Last update: November 14, 2019