11/11/2022 0 Comments Virtual reality mind lock![]() Johan Andersson, an engineer who works for DICE, describes foveated rendering like this: This offers a dramtatic speedup compared to rendering the scene conventionally, which makes a huge difference in the quality and consistency of the visual experience. #Virtual reality mind lock fullBy including small cameras in the headset to track the user’s eyes, it’s possible to render only the parts of the image that the fovea can see at full detail, rendering the rest of the visual field at very low resolution. ![]() This is mildly unsettling, but incredibly useful for head mounted displays. ![]() We get around this by rapidly flicking our eyes around the world and stitching the resulting data together into the illusion of a continuous, detailed visual image. Outside of the middle few percent of the visual field, humans are basically blind. Foveated rendering offers a way out of this problem.įoveated rendering depends on a critical fact about the human eye, which is that the photo-receptors on the human retina are not evenly distributed: almost all of them are clustered in a tiny circle in the middle of the retina called the fovea. ![]() John Carmack has made considerable progress on finding cheats to allow VR experiences to run more smoothly (including a technique called “timewarp” that fills in missing frames using a smart interpolation algorithm) - but it’s still a major limitation to consumer adoption of VR hardware. ![]()
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