orbit-controls.js

    // This results in correct positioning on the Rift
    this.el.setAttribute('position', {
      x: 0,
      y: currentPosition.y,
      z: 0
    })

    // REMOVED: This is what previously worked for Vive and Gear VR - needs testing!
    // this.el.setAttribute('position', {
    //   x: currentPosition.x - this.data.position.x,
    //   y: currentPosition.y - this.data.position.y,
    //   z: currentPosition.z - this.data.position.z
    // })