Unofficial Pimax Day 2 Questions Megathread

You can have both. Eye tracking will be great for fixing the lump sum of issues such as, incorrect IPD, viewing distance.

Updated Thread. Hopefully we get all the questions answered in 2 days.

If I lock my eyes focusing centre and only move my head, keeping eyes still, then there is geometric distortion. The last game I played, well tried to play, in pimax was DCS in the Huey. Pick a wide cockpit like the Huey, keep your eyes still and move your head…and watch the cockpit bend and morph it’s shape.
So if Pimax can’t deal with geometry distortion looking straight ahead, not moving eyes, then how well do you think they will go with dynamic distortion correction with moving eyes? Especially through the current lenses (which are crap).

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Are we getting the 120hz firmware update when Pimax Day 2 hits or should I just forget about it and wait.

A lot better actually. It’s not as straightforward as you think. It may seem as though, since it’s a static image it should be easy to get right, but in reality people have different face shapes, etc. The eye tracking could possibly detect some of these differences which could then be corrected using software. The current lenses also aren’t bad at all really. They’re pretty good for fresnel lenses. The canted displays make distortion correction that looks right for the majority of people a lot harder, and lenses that are more suited to wide fov VR could cost a lot more.

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I suspect you’re overestimating what the eye tracking does. It doesn’t distinguish face shapes or distance of retina to screens.
Dynamic distortion correction is only for moving eyes off centre. There’s only one distortion algorithm required for looking centrally and many required for dynamic correction.
So if they can’t get one right then how can they get many right?
And no they’re not good lenses.

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We don’t know exactly how the eye tracking works. It’s likely the eye tracker uses some sort of camera in combination with IR light, so who knows. The lenses are good, I don’t know why you think they aren’t. In comparison to the other lenses in consumer headsets they’re pretty up there.

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I would bet a lot that the eye tracker is only measuring where your pupils are moving (just from reading about eye tracking solutions) and not morphology of face or retina to screen distance or even surface of eye to screen distance.
I’ve used very good lenses all of my life in spectacles, contacts and tools as well as toys. I often do binocular microscopic work. I purchase amazing lenses all the time, from lens companies and tools with amazing lenses where the tool companies bought the lenses from lens companies. They’re not overly expensive at all. I get crazily good lenses for my spectacles tailored to me in every way, with AR coating and hardening layers with scratch resistance for about 200 or so Aussie dollars which is about US$2.50 (exaggeration of course).
I don’t understand the VR companies pretending to make lenses by cutting up old overhead projectors, especially after they saw the popularity of the Gear VR lens mods people were doing. VR lenses are trash toys and wide fov makes them more noticeable. I think you’d be shocked at what we could’ve had for the money pimax flushed down the drain with multiple crazy iterations of trash toy lenses.
So that’s what I mean by lenses are crap. The fact other companies also have crap lenses doesn’t make them good. And as said the wide fov makes the crap lenses more obvious so wide fov VR manufacturers like pimax should be leading the way with approaching lens companies about making real lenses.
But this strays from my point that if static distortion algorithm can’t be nailed down then many algorithms for dynamic movement won’t be any better.

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It’s not just about the lenses looking good. It’s also weight, cost, mass production, etc. I’d rather just wait for the eye tracking and distortion correction to come out instead of making blind guesses tbh. All we know now is that it’s going to be implemented. We don’t know the functionalities of the eye tracker. We can assume that if Pimax has gone as far to say they will implement dynamic distortion correction, it’s probably worth it to some degree.

They weigh very little, cost very little and the companies are specialist mass producers who also have the ability to churn out custom changes from their factories with little effort. But keep arguing to keep your discarded old overhead projector lenses so you’ll never know how good it could be. Lenses are very difficult for people who don’t make lenses and we’ve seen this. Then there’s companies who have done it for centuries and do it well for a very reasonable price.

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I’m sure they don’t cost very much if they’re for spectacles. VR lenses could be a whole different ballgame. If it was so easy to have perfect cheap lenses for VR headsets, don’t you think they’d exist already?

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Well people with no expertise or experience currently make them and use non specialist factories to make them. Why people are against handing it over to experts building on centuries of experience and resources is beyond me.
Why hasn’t anyone made a perfect wide fov vr hmd yet? If it could be done surely it would have already been done by now…sarcasm. You won’t know until the path is trodden so why resist the thought that vr companies should try out what lens experts can do for them.

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Can 8k X pledgers upgrade to the 8k X RE? If yes, for how much?
What is the weight of the 8k X RE vs the normal 8k X?
Is there a comfort difference between 8k X and 8k X RE?

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I’d love to know on ‘Pimax Day 2’ if prescription lens glasses wearers (waiting to use the much discussed prescription lens module) can also use the 7Invensun designed eye tracking module!

My suspicion is this will be unlikely as one module would have to be designed to fit over the other and that would take more time and money for Pimax to design or maybe even prevent eye tracking from working altogether?!

I imagine until this question is answered it would be wise for Pimax users (who wear glasses) to hold off from ordering the eye tracking module early, despite temptations.

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I’d say hold off until we see the performance gains for Dynamic Foveated Rendering.

That’s what Pimax said was their cost. It might be due to the lens’ highly unusual design, a “rush” charge to minimized delays, or some other reason.

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That’s what they wasted dealing with trash toy companies and trying to design it themselves. This is my point…if only they went to real lens makers with this money.

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I was observing that also and posted that Zeiss even has a VR HMD - small FoV - but I was wondering how expensive it would be to have a „Professional“ lens developed with them ( as an example).

What is confirmed as being worked on by Pimax representatives (@PimaxUSA, @Sean.Huang, @Matthew.Xu ), but still yet to be addressed or shown in any media.
Here’s hoping we’ll hear more about them on Pimax day 2, if a Pimax representative could comment in this thread and take note of these items to address them on the Pimax Day 2 stream that would be appreciated.

brilliant is not the word I would use.

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