Variable Shading Rate (VRS) and refresh rate are optimized using a perceptual motion-quality model to maximize rendering quality for a given rendering budget.
Additionally, the corresponding paper makes clear that there's a huge need for better motion quality research:
Mark/BlurBusters gets a citation in the paper too!We find the studies of persistence and resolution to be particularly lacking as they do not cover the ranges commonly found in VR and mobile devices. Furthermore, spatio-temporal aliasing artifacts due to low-resolution rendering are also not well considered in these works. Lastly, a majority of these studies used oversimplified stimuli such as lines, boxes, etc. that may not generalize well to complex image content.
