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Joined 2 年前
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Cake day: 2023年7月2日

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  • So, a 55-inch TV, which is pretty much the smallest 4k TV you could get when they were new, has benefits over 1080p at a distance of 7.5 feet… how far away do people watch their TVs from? Am I weird?

    And at the size of computer monitors, for the distance they are from your face, they would always have full benefit on this chart. And even working into 8k a decent amount.

    And that’s only for people with typical vision, for people with above-average acuity, the benefits would start further away.

    But yeah, for VR for sure, since having an 8k screen there would directly determine how far away a 4k flat screen can be properly re-created. If your headset is only 4k, a 4k flat screen in VR is only worth it when it takes up most of your field of view. That’s how I have mine set up, but I would imagine most people would prefer it to be half the size or twice the distance away, or a combination.

    So 8k screens in VR will be very relevant for augmented reality, since performance costs there are pretty low anyway. And still convey benefits if you are running actual VR games at half the physical panel resolution due to performance demand being too high otherwise. You get some relatively free upscaling then. Won’t look as good as native 8k, but benefits a bit anyway.

    There is also fixed and dynamic foveated rendering to think about, with an 8k screen, even running only 10% of it at that resolution and 20% at 4k, 30% at 1080p, and the remaining 40% at 540p, even with the overhead of so many foveation steps, you’ll get a notable reduction in performance cost. Fixed foveated would likely need to lean higher towards bigger percentages of higher res, but has the performance advantage of not having to move around at all from frame to frame. Can benefit from more pre-planning and optimization.



  • As an add-on to this, some people are inherently better at meditation to start with. So hearing from other people how short their journey was from “meditation is just a waste of time” to “after some practice it started to be more effective” can be really discouraging for people where that journey can be years. But everyone can get good at meditating. And generally, the harder or more useless it seems to start out, the more you need what it offers.




  • Overall is that even a deal over a used headset? Even a fully featured non-stripped down one? Like given what features his headset does have, it’s comparable to some pretty old headsets… and it likely does even those bare minimum features more poorly than an older used headset would. Not to mention comfort.

    Like a 10 year old Rift CV1 has almost as much resolution at 90hz/fps instead of 60. And while it’s lenses would be relatively terrible now, they were pretty much the best option of their day, and likely still better than whatever this dude sourced. Not to mention their motion to photon was around 12 ms. The absolute best result this guy can hope for is 16.6ms, and that’s only if everything else in the pipeline is faster than the screens refresh rate… maybe it is… but I wouldn’t bet on it personally.

    I’m sure it was a fun project though.




  • Find an eye doctor that has the time for you, so you don’t feel rushed. My family always used to take us to wal-mart when we were kids, and I still kept going there as an adult. Until one time I had to go to somewhere closer one day. And it was night and day. At walmart you always felt rushed like they booked each appointment for 5 minutes or something. At a proper eye doctor, we sat and talked about all my eye health, not just vision. And never once did it feel like they were just trying to get through the appointment. They were interested to hear about my health. But most importantly, they were very open to spending twice as much time doing the a/b testing at a comfortable pace. And I didn’t have to suggest it, they could tell it would benefit me.






  • Isn’t it that he was the surgeon? So he billed the insurance for himself and paid himself the money. Instead of the money going to the hospital and some portion of it going towards his paycheck, but most of it going towards the cost of running and supplying a hospital with all the tech and tools they need to stay current and have competitive success rates.

    Or did he just claim disability or something by way of accident instead of by choice, to get a higher disability insurance pay out?

    Either way, fraud is basically any time you lie to get money, criminal fraud is when you lie to get enough money that the police care. And it certainly seems like he lied to get more money than he was entitled.