Matteo311 review - Pimax 8KX VS Valve Index

Why was Sweviver showing off the stickless 2 button Sword controller? Why do Pimax show things that are still 12-24 months away? Pimax can’t even fix audio drivers for their delayed DMAS.

You have to ask yourself. If Pimax re-ran the og kickstarter, knowing what we know now would they realy generate the same 4million? I doubt it.

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Because as they explained in that broadcast the sword will be first to release as had been announced before. The plus he said ut is a hybrid with the sense features.

Some mysteries are best explored with Robert Stack.

How many Kickstarters would do as well if re ran? Not many; especially ones like Hardlight Vest that collapsed before all rewards were delivered(stretch goals).

Now if you mean re ran now meaning the earlier one didn’t happen? Then with current world circumstances it would either have made more or less.

At least pimax never did the new gimmick like Rebuff Reality. Our first KS closed were almost a year later no delivery and now are re running the campaign on Indiegogo to collect more money. And therw vr ears are a simple project.

Now there is a new project by Sentien that is mordern and more impressive than the primitive looking vr ears.

https://www.kickstarter.com/projects/sentien/sentien-audio?ref=recommendation-ended-project-backer-1

I’m curious where next jump in vr headset comes from? I mean visuals,…

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I will say as kickstarter…Pimax did fine as far as I’m concerned. I didn’t expect alot…it was a Gamble…they could have never produced anything…

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I’m more concerned about.other big time companies who have capital who could most certainly push vr farther faster…

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@teigue I wonder why some people, like me, see little to no distortion at all? Could some people’s eyes and head shape just ‘fit’ the Pimax better than other people’s?
NextGen VR did a video that showed that distortion didn’t occur until (if I recall this correctly) near the edge of the Pimax’s FOV limit. I don’t know whether or not you know how to use the headset. I presume you are capable, so there must be a technical reason it works so well for me, and so poorly for you.
I wonder what it would cost to add automatic IPD adjustment to the HMD? Or at least a manual adjustment that allows more movement than simply closer or farther apart.
Cheers
finn

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Thats not that worse, its usable and in static it doesnt bother but in dynamic it feels like something is off, i assume some ppl just less sensitive to it, e.g. googles wearers, other brain/eyes/head shape diffs, its clearly a poor designed optic as on my rest 16 hmds its not the case, only pimax has this flaw though only canted other hmd i have is index but they use double stack lenses and it works perfect, i have 3 pimax hmds: all of those have it 8k, 5k+, 5xr, the xr has less optic issues but still it has it.

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The Canting is quite minor on the Index as well.

With the Index having a restricted FoV it will also have a stronger feeling if Stereo Overlap.

I recall Ben from RoadToVR of the Wide FoV headsets he has covered said the Panasonic Prototype with 220 FoV with Fused screens & Optics said it felt the best of them for stereo overlap.

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After having gone through several pimax headsets (5k 8kx artisan) and tons of others and having done lots of experiments I am very confident it indeed comes to facial features (mostly how deep your eyes are) and sensitivity.

If you pull out the face gasket, you can bring the lenses extremely close to your eyes. Best to do the experiments with one eye closed. Then just look at a static long vertical object and move your head so you see it through different parts of the lens.

My conclusion is that the pimax headsets are optimized for Asian face types (more protruding eyes). It seems that the best position is that the lenses are so close to your eyes that your eye lashes are almost touching the lenses.

However your brain can also adapt to it. In fact if you just use your pimax for several weeks and not a distortion free headset like the index in between, you will notice it less and less. It’s only when you flip back that you realize again, damn, pimax has still quite some improving to do

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you might take into consideration that most people only tried just one headset, there are people that had replacement headsets and they commented to need different corrections with the 2nd or 3rd so it seems more likely the headsets differ in panel and lens alignment
did you know every vive has its own lens correction measured and programmed into the headset? (left and right lens different values), that’s nothing pimax does, they treat every headset the same as there would be no verietys in production of lens or the assembly
the new hor. and vert. corrections do not change the camera positions anymore, they just move the picture on the screen, seems to be a clear indication (to me) that its alignment correction they “forgot” to do in production (or even concept) and the success of people lately might also be a indication that its a step in the right direction to get rid of the eye strain problems

also a problem is distortions and warping near the inner edge of the lens (stereo overlap area) its hideous to receive a different picture for left and right eye
as i can’t compare with other pimax headsets it might be less for others i guess but i also found some people also seeing this, my vive does not have this its lines are straight to the edge and don’t bend or get compressed
(eye’s straight and head slowly moving horizontal - so its not pupil swim, because that would be head not moving, eye’s moving and getting warping effects all over the picture)

atm at least the money you see for the cost of the separate eye tracking, it might be cheaper in bigger numbers but also makes the internals more complicated, adds weight and might make the headset even bulkier
also pimax only moves the lenses and moves the picture on the panels where other headsets move lens and screen, that also makes a difference in bulkiness and wight, one of the xtal’s problems is exactly this, bulky and heavy (beside the price of 8000€ for 8k)
you really dont want to add weight or space even further, its already like a hammer head shark and at some movements hands/controller and headset may collide

what makes you think that’s needed, no other headset needs any kind of vertical alignment (beside placing it properly on you head), xtal seems to be the proof that you don’t need this even in wide fov (beside all the other headsets not having it and working properly)

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Definitely has to do with facial alignment and topography. I don’t have an asian face type. So the one factor people miss is adaptability. Each eye on ones face do not see things equally. Colours, focus etc… Some people like the whole you will get used to sde deal. Is widely true. Restricted FoV headsets essentially have both screens displaying the same picture with complete stereo overlap. Wide FoV has a lot more variables that are harder to control as a result and likely why no one else is really attempting to create these kinds of headsets for Joe Consumer.

Enterprise and commercial settings are better overall targets. As a commercial space ppl have a very limited time with a headset and the experience will give the wow effect during that limited exposure vs hours, days and weeks of use.

Enterprise settings again you have a limited audience using it for specific purposes and you can dial it in for that limited number of users.

1st gen is often a bit of hit and miss; just look at the early gen1 restricted FoV headsets and the lessons learned used now in what the 3rd or 4th gen restricted FoV headsets. And we know they still haven’t nailed it for everyone.

I think @Neoskynet has the right idea on lens consumer version 2. Squarish optics for main view area as it can taper off with less geo warping potential you get with rounded lenses transitioning from round to flat.

Fried eggs have greater limits.

What I really think is that if you look straight and move head horizontally and see this geometric distortions then it means that the reason isn’t optic but poorly done distortion software profile, maybe canted optics make it more complex to do universal distortion profile, I know when you mod vive with different lenses there is GitHub tools to calibrate it manually and export to the hmd through console tools, I remember on pimax we had this profile in configs, maybe if we would have a tool and firmware ability to change this profile settings on the fly from that tool to see the changes on head movement in dynamic we would be able to eliminate or at least greatly decrease amount of the geo distortions per person. Maybe later we would have a presets of those made by community which worked great for some people as I remember pimax team also offered some profiles but I don’t think it worked great though as it’s hard to calibrate for another head shape on a canted hmd displays I assume

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its also possible it does work better for some lenses/headsets then others as it might depend of production variances, on a smaller number of headsets like starvr or xtal they might do correction profiles for every headset they produce

it is with a wider field of view (canted is just the way do to it) there is more room for you pupil/eyeball to move left an right and depending on the lens design you will get pupil swim, the correction profile only takes into account your normal view and if you gaze darts somewhere else the corrections does not fit anymore and can produce distortion effects for the wandering gaze
beside less canting and resulting in less fov (like in index) you could try different lens designs (they might have less pupil swim) or do a real time correction with eye tracking (i dont think xtal or starvr doing this its way to complicated, needs very fast tracking and rendering pipeline)

thats more difficult then it sounds as its very difficult to reproduce
best start might be to use some kind of fixed rig to measure and maybe compare 3-5 pimax headsets of the same type

lego might not be that ridiculous as it will be easier to reproduce things like setting up the camera or building a 2nd rig of the same type
beside ruling out differences in single headsets it would also be possible to take pictures of a grid with the camera in different positions like different eye relief for simulating eye’s deeper in the skull or moving the camera vertical to simulate wearing the headset to high or to low
and if someone defines how “different head shapes” is to take into account it would be measurable too

at some point you cant advance without being more scientific and lab like to reproduce things

edit:and if someone want to read more Oliver Kreylos aka Doc-Ok is a good source and this gives a good timeline to have a look of what he did

It’s already here . Varjo 3 Oled retina resolution + LCD and 115 FOV

but i believe this mixture do not work with steam games.

So tell to OCULUS to call it Quest 3 pro

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This vr oasis vid shows it does work in SteamVR. @twack3r has said he has the vr3 on order.

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I couldn’t go back to a narrow FOV like that. For me, the 8KX is fine- I love it.

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Varjo 3 has 115 fov in theory

It’s Bigger FOV then Varjo 1 e Varjo 2

That few people Knows

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I will let you know how it fares once I receive it.

115 FOV is a bit more than the Index, which just passed the threshold to ‚acceptable‘ for me.

The G2 on the other hand is unusable for me because of the sub par FOV, even with custom interfaces.

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You ordered one, @twack3r? When will you get yours? I’m actually seriously considering getting one too, but would love to hear your review first. My G2 love has cooled down quite a bit, even so much that I’m now back to the 8k-X, but damn, it’s also tons of frustration to use that thing. So the VR3 looks really interesting, it’s expensive though but still in reach for the prosumers and I’m sure you can sell it on ebay for only a small penalty. So I’m really tempted to buy it!

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Yeah I did.

I ordered some time last week and the retailer authorized for the German market (bestware/Schenker) is stating ‚April‘ as a delivery date.

As stated, I‘m mainly getting it for the automatic IPD, the non fresnel lenses and finally the facts that a) Varjo massively increased the FOV, b) finally doubled the 70ppd focus screen and c) considerably increased the resolution of the OLED peripheral 30ppd screens to about G2 levels.

Coupled with full SteamVR compatibility this for me makes it basically a no brainer and considerably more interesting than e.g. a XTAL.

The cost is offset into my company‘s R&D budget and if the support is worth their salt I don’t mind paying a recurring fee at all.

I‘ll let you guys know what the HMD is like and where it falls short because knowing VR, there will absolutely be aspects that aren’t acceptable in the long run.

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