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Multi-res shading performs this function by diving the image into a grid with 9 viewpoints. Only the center viewpoint is rendered in full resolution. It renders the outer viewpoints at lower resolution because they merge and shrink during the distortion process. Multi-res shading improves the performance of the VR app by rendering fewer pixels.
Multi-res shading should be used by a game engine developer. It cannot be turned on from the driver directly.
According to Nvidia engineer [[Tom Peterson]], multi-res shading can save about 50% of the pixel load.<ref>https://www.youtube.com/watch?v=88RnIVcvuRY</ref>
