WebVRConfig = {
  // Flag to disabled the UI in VR Mode.
  CARDBOARD_UI_DISABLED: false, // Default: false

  // Forces availability of VR mode, even for non-mobile devices.
  FORCE_ENABLE_VR: true, // Default: false.

  // Complementary filter coefficient. 0 for accelerometer, 1 for gyro.
  K_FILTER: 0.98, // Default: 0.98.

  // Flag to disable the instructions to rotate your device.
  ROTATE_INSTRUCTIONS_DISABLED: false, // Default: false.

  // How far into the future to predict during fast motion (in seconds).
  PREDICTION_TIME_S: 0.040, // Default: 0.040.

  // Flag to disable touch panner. In case you have your own touch controls.
  TOUCH_PANNER_DISABLED: false, // Default: true.

  // Enable yaw panning only, disabling roll and pitch. This can be useful
  // for panoramas with nothing interesting above or below.
  YAW_ONLY: true, // Default: false.

  // To disable keyboard and mouse controls, if you want to use your own
  // implementation.
  MOUSE_KEYBOARD_CONTROLS_DISABLED: true, // Default: false.

  // Prevent the polyfill from initializing immediately. Requires the app
  // to call InitializeWebVRPolyfill() before it can be used.
  DEFER_INITIALIZATION: true, // Default: false.

  // Enable the deprecated version of the API (navigator.getVRDevices).
  ENABLE_DEPRECATED_API: true, // Default: false.

  // Scales the recommended buffer size reported by WebVR, which can improve
  // performance.
  BUFFER_SCALE: 0.5, // Default: 0.5.

  // Allow VRDisplay.submitFrame to change gl bindings, which is more
  // efficient if the application code will re-bind its resources on the
  // next frame anyway. This has been seen to cause rendering glitches with
  // THREE.js.
  // Dirty bindings include: gl.FRAMEBUFFER_BINDING, gl.CURRENT_PROGRAM,
  // gl.ARRAY_BUFFER_BINDING, gl.ELEMENT_ARRAY_BUFFER_BINDING,
  // and gl.TEXTURE_BINDING_2D for texture unit 0.
  DIRTY_SUBMIT_FRAME_BINDINGS: true // Default: false.

  // When set to true, this will cause a polyfilled VRDisplay to always be
  // appended to the list returned by navigator.getVRDisplays(), even if that
  // list includes a native VRDisplay.
  ALWAYS_APPEND_POLYFILL_DISPLAY: false,

  // There are versions of Chrome (M58-M60?) where the native WebVR API exists,
  // and instead of returning 0 VR displays when none are detected,
  // `navigator.getVRDisplays()`'s promise never resolves. This results
  // in the polyfill hanging and not being able to provide fallback
  // displays, so set a timeout in milliseconds to stop waiting for a response
  // and just use polyfilled displays.
  // https://bugs.chromium.org/p/chromium/issues/detail?id=727969
  GET_VR_DISPLAYS_TIMEOUT: 1000,
}