[DEV-BLOG] Tech Note: Mask-based Foveated Rendering with Unreal Engine 4

Mask-based foveated rendering (MBFR) is a rendering technique that decreases the shading rate of the peripheral region of the eye buffers by dropping some of the pixels, based on a checkboard pattern. It allows you to effectively reduce pixel shading cost from world rendering, provides good visual quality when dropping 50% of the pixels, and is compatible with all D3D11 level hardware - independent to IHV extensions.
In this post, we will walk through a masked scene that demonstrates MBFR and discuss when MBFR is most useful.