ALVR - Air Light VR

ALVR is an opensource remote VR display for Gear VR and Oculus Go. You can play SteamVR games in your standalone headset.

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Description

ALVR streams VR display output from your PC to Gear VR / Oculus Go via Wi-Fi. This is similar to Riftcat or Trinus VR, but our purpose is optimization for Gear VR. ALVR provides smooth head-tracking compared to other apps in Wi-Fi environment using Asynchronous Timewarp.

Now, we have Gear VR / Oculus Go Controller support!

Note that many PCVR games require 6DoF controller or multiple buttons, so you might not able to play those games.

Requirements

ALVR requires following devices:

• Gear VR or Oculus Go

Device	Work?
Oculus Go	OK
GalaxyS8/S8+	OK
GalaxyS9/S9+	Not tested
GalaxyS7	Not tested
GalaxyS6	Not tested

• High-end gaming PC with NVIDIA GPU which supports NVENC
  • Only Windows 10 is supported
• 802.11n/ac wireless or ethernet wired connection
  • It is recommended to use 802.11ac for headset and ethernet for PC
    • You need to connect both to same router
• SteamVR

Installation

Install ALVR server for PC

• Install SteamVR
• Install vc_redist.x64.exe from here
• Download zip from Releases
• Extract zip on any folder
• Launch ALVR.exe

Install ALVR client for headset

For Gear VR users

• (Install apk from SideloadVR) Yet to be released. Please wait.
• Get osig file from oculus website.
• Install Apk Editor
• Download apk from Releases
• Open apk and put osig file on assets folder
• Build and install

For Oculus Go users

• Download apk from Releases
• Install apk via adb

Usage

• Launch ALVR.exe
• Press "Start Server" button or launch VR game
• SteamVR's small window will appear
• Launch ALVR Client in your headset
• IP Address of headset will appear in server tab of ALVR.exe
• Press "Connect" button

Troubleshoot

• "Server is down" is displayed on right top corner on ALVR.exe
  • Retry execute driver_install.bat on driver folder
  • Terminate the process vrserver.exe on Task Manager
• IP Address is not displayed on ALVR.exe
  • It maybe network issue
  • Confirm that the headset and PC are connected in same LAN.
  • Check the firewall settings. (Permit UDP/9944 port)
  • If you can use adb, run adb shell ping -c 5 (IP Address of PC) then check success of ping.
• Bad streaming quality (Sometimes stops, laggy or broken picture)
  • We will add the functionality to change streaming resolution and bitrate.
  • Connect 5GHz 802.ac Wi-Fi or Connect Wired LAN to headset.
• If you get "A key component of Steam VR isnt working properly" error
  • Check the graphic driver is updated

Uninstallation

• Execute driver_uninstall.bat in driver folder
• Delete install folder (ALVR does not use registry)
• If you already deleted folder without executing driver_uninstall.bat
  • Open C:\Users\%USERNAME%\AppData\Local\openvr\openvrpaths.vrpath and check install directory.
  • Execute "C:\Program Files (x86)\Steam\steamapps\common\SteamVR\bin\win32\vrpathreg.exe" removedriver (install folder) in Command Prompt.

Future work

• Support streaming sound
• Support H.265 hevc encoding (Currently H.264 only)
• Easy installer

Build

ALVR Server and GUI (Launcher)

• Open ALVR.sln with Visual Studio 2017 and build.
  • alvr_server project is driver for SteamVR written in C++
  • ALVR project is launcher GUI written in C#

ALVR Client

• Clone ALVR Client
• Put your osig file on assets folder (only for Gear VR)
• Build with Android Studio
• Install apk via adb

License

ALVR is licensed under MIT License.

Donate

If you like this project, please donate!

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