Cloud Rendering Scheme for Standalone Virtual Reality Headset

This paper proposes a cloud rendering framework for three-degree-of-freedom-oriented standalone virtual reality headset which worked on wireless network to solve the shortcomings of VR devices using cables connections and insufficient local rendering capabilities. This framework not only solves the problem of the VR experience being affected by cables, but also improves the image quality of the standalone headset. In this solution, we use the standalone headset as the client, the Unreal Engine 4(UE4) as the rendering engine and the server combining Asynchronous TimeWarping (ATW) and Fixed Foveated Rendering (FFR) technology to achieve cloud rendering. The results show that the solution can support the 2560×1440 resolution. Experiments show that the framework can significantly improve the image quality of the standalone headset, and it can also maintain a frame rate of 70Hz.