Alphabet-owned Google has filed a patent for a new approach to VR walking shoes. The shoe features tiny motorized wheels on the bottom that subtly guide the user back to the center of the room as they walk to the edge of the range. If done correctly, users will feel like they have an infinite VR game space.
The approach is an extension of the earlier concept of "infinite redirected walking", which used pure visual distortion at the scale of the virtual environment to try to achieve the same effect by tricking the user's eyes. The problem with these methods, however, is that they still require very large play spaces of about 20 by 20 feet to be effective, and may only be effective in indoor virtual environments.
Retargeting can be both optical and physical by adding actual motion to the user's shoes. As you walk towards the edge of the room, the motors in the shoes will activate in the opposite direction as your feet touch the ground.
Questions remain about the price of this type of shoe, whether this motor is reliable enough for the product, and how it actually feels in use. But if the method described in Google's patent application does work, it could be a revolution in the VR movement. We will keep you updated with any patents or news from Google about innovative VR mobility solutions.
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