Smearing: Difference between revisions
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Smearing is the perception of motion blur that reduces the | Smearing is the perception of motion blur that reduces the sharpness and detail of the image in [[VR]]. Smearing along with [[strobing]] is part of the [[judder]] phenomenon in [[head-mounted display]]s. Because smearing reduces the visual quality of the display and even cause [[simulator sickness]], it can ruin a user's [[immersion]]. | ||
Smearing occurs when each pixel moves across the retina while it is lit. The longer the pixels are lit and the more movement of the HMD, the more smearing occurs. | Smearing occurs when each pixel moves across the retina while it is lit. The longer the pixels are lit (full [[persistence]]) and the more movement of the [[HMD]] (quickly turning your head), the more smearing occurs.<ref name="judder1">http://blogs.valvesoftware.com/abrash/why-virtual-isnt-real-to-your-brain-judder/</ref> | ||
Smearing can be eliminated by either having really high [[refresh rate]], about 1000 Hz is needed, or using a [[low persistence]] display, a more practical method employed by most [[HMD]]s. | Smearing can be eliminated by either having really high [[refresh rate]], about 1000 Hz is needed, or using a [[low persistence]] display, a more practical method employed by most [[HMD]]s.<ref name="judder1">http://blogs.valvesoftware.com/abrash/why-virtual-isnt-real-to-your-brain-judder/</ref> | ||
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[[Category:Terms]] | [[Category:Terms]] | ||