You want to know something about how bullshit insane our brains are? OK, so there's a physical problem with our eyes: We move them in short fast bursts called "saccades", right? very quick, synchronized movements. The only problem is: they go all blurry and useless during this
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Yup! And Some forms of it are being worked on. Foveated rendering, for example, is a trick where you put an eye-tracker in the headset, and only render at max quality where the user is looking. Everywhere else can be low quality.
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What kind of latency requirement is there for delivering the hq version?
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I'm not sure! VR isn't really my thing, but it's gotta be pretty low latency to start with just to keep the VR from getting dizzy, I think.
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There's a company doing a simple version of this right now, without the eye tracking. It's two screens blended together. The center of each eye view is high pixel density, the outer second screen is lower pixel density. Super cool
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That's got to be comparably nauseating to low-abbe eyeglasses.
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Why's that?
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Because whether something is clear or blurred/fringed is a function of whether your eyeballs are pointed at the center of the lens/display or at the edges.
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Oh I see. Yeah it's a little weird and subpar. But it's what we've got for now. Foveated rendering would require *ridiculously* low latency times. It'll be fun watching people try.
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for real, good point, huge advances in audio compression were made with better understanding of auditory perception.
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Yeah. That's basically the big idea behind MP3! You basically simulate what parts of the sound data humans can hear (called "perceptual coding") and then toss out the rest.
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MP3 psychoacoustics turned out to be junk (likely thrown in just for patent purposes). At tolerable bitrates, just disabling them gives better quality.
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Oh, interesting! I hadn't heard that.
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I'm not familiar with any published work on it, but that was my experience using LAME and seemed to agree with others'. Also matched my experience with similar pre-encode tricks on video - ...
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That is, perceptually half-decent at really low bitrates but worse/noticeably artifacted at good ones.
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The real zest is in bypassing the eyes altogether. Surely there are more effective uses for that bandwidth. Bionic eyes or VR bypass are da wae
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No, this is why you communicate over well-defined protocols rather than plugging firewire into random shit. It's not about efficiency but who has control over how data stream is interpreted.
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Yeah Videodrome wasn't such a bad deal, suit yourself
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During research on helmet displays where non-visible spectra or time lagged remote images are being processed, the processing & rendering time lag induces severe nausea when the operator turns his head. The brain's saccade hack can't cope with the VR response delay.
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Thank goodness. Our brains refuse to be dupes for military robotics. Science - no, scientists - highly over rated.
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Even more hardcore things than that - https://www.youtube.com/watch?v=eDk4HrEtGrM … exploiting the blind period to reorient the VR world to prevent you from bumping into things in the real one.
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