  Virtual Reality systems provide many opportunities for scientific research
and consumer enjoyment; however, they are more demanding than traditional
desktop applications and require a wired connection to desktops in order to
enjoy maximum quality. Standalone options that are not connected to computers
exist, yet they are powered by mobile GPUs, which provide limited power in
comparison to desktop rendering. Alternative approaches to improve performance
on mobile devices use server rendering to render frames for a client and treat
the client largely as a display device. However, current streaming solutions
largely suffer from high end-to-end latency due to processing and networking
requirements, as well as underutilization of the client. We propose a networked
split-rendering approach to achieve faster end-to-end image presentation rates
on the mobile device while preserving image quality. Our proposed solution uses
an image-space division of labour between the server-side GPU and the mobile
client, and achieves a significantly faster runtime than client-only rendering
and than using a thin-client approach, which is mostly reliant on the server.
