Update: So I looked at a building sign in aircar from a distance, with the sign perfectly centered in the front windshield. Then I quickly closed my left eye, then right eye. You have to alternate really fast/rapidly to see the difference. And I noticed that my right eye showed the picture lower than my left eye.
Here’s the values I’ve settled on:
IPD offset
Left: 0.3
Right: 0.5
Screen vertical offset:
Left: 0
Right: -0.4
Now when I rapidly close my left and right eye they both look like in the same position. But should my left offset match exactly?
Update: I’m feeling eye fatigue and I can’t tell if it’s the new settings or the fact I’ve tired my eyes constantly squeezing my eyebrows and eyes when doing experiment. I think the latter maybe. They’re still tired and sleepy 5 mins after taking off headset.
Offset depends on your eyes IPD and lens placement (and also headset placement itself) . Because of that I doubt your eyes and offset values will be symmetrical.
It might be not enough sleep. Tomorrow I will try my headset and again and hopefully I don’t feel eye strain. I think 61.8 might actually be better for me than putting it on the lowest of 60. What are your thoughts?
This is the issue - I tried the various different suggestions and you will get tired of trying really soon, because the eyes are being stressed quite a lot in the process. So in order to be effective, you will have to plan multiple sessions and be prepared to quit a session when you notice eye-strain & fatigue becoming stronger. Just like growing VR legs. Should we call it growing Pimax eyes then ??
A tool with proper objects to focus on in different focal planes, spoken or written instructions within the headset, would certainly go a long way to help get the best experience out of the 8KX. The frustration and exhaustion of having to go through this alignment time and again in search of small improvements had led to me not touching my 8KX for 1-2 months. I still have to pick up the refinement efforts again (my attempts were still based on the PiTool version with 0.5 steps) because the only reason I started to try the 8KX again some 2 weeks ago was that I promised myself that I would NOT try to improve my cross-eyed sensation for now but just try to adapt to it and see if I can have a bit of fun with the 8KX and get my favourite games & apps to work with it. So I still need to improve the IPD settings further, because it still feels slightly cross-eyed every time I use it. Much better than in the beginning though, but still not at or very near the 100%.
It would be very useful to be able to switch off one eye display or set it to completely dark and then allow us to very quickly alternate the switch between eyes. It would make this process very easy, even for beginners. @SweViver@arminelec
Hi! If you didn’t already you may give this procedure a go.
Immersion might still be reduced/gone but eyestrain should be gone, too so you could still enjoy your 8kx prior to further adjustment described here or waiting for IPD PiTool Tool.
There’s definitively something to it. I’m around 5-6 apart same as the OP and it feels just right and your in a big world… I still need to experiment some as im always fatigued in my right eye but i was before too.
Edit. Afraid while it does feel good having it a fair bit apart i find it dosent quite work and both my left right offsets are now 2.2 and i use a couple up and down to get separation. If i do the -2 3 or something similar the image is skewed and distorted. For me anyways. Guessing it depends a lot on actual lens position why you can do -2.7 and 3.2 in the other. I really dont know.
That could actually be possible since the way the Pimax Unity SDK controls the rendering of the image of each eye separately. We are looking into this. Thanks
Btw we are sorry that we haven’t responded to many of your ideas, we are just a bit busy with code and currently we are working on the online profile code and server back-end.
Ok, so I’m having a hard time understanding this prosess. I’m not criticizing as the subjective experience of vr makes it really difficult to explain. What is described when reaching the right ipd setting sounds like a fundamental change. Now is this when it is just right or is there a range which takes you closer in to immersiveness and if you tune beyond that you loose it again?
In step two I don’t understand with: “if this building feels of the center…”. I’ve not had this feeling in my pimax. I want to ask. Off-centre as opposed to what? Would it help if we could get a grid overlay while tuning to have some uniform reference?
my experience is that, if set right both offsets and IPD to your eyes, when they are positionend as you were looking at something far away, than it should also feel right when looking at something near without any eye strain. only then my eyes can focus on different virtual objects as they were placed in space from like 30cm or 100m away and my eyes behave/coordinate the same as they would in real life and not lie focusing on two screens in 1,2,3 or whatever focal distance they should be.
I am just curious to know if this kind of setting the 8kx up for some reason only applies to my face/eyes or this might be some universal formula.
I will retest my guide as soon I get some time which might be not until this weekend and redo it if I believe I can write it more understandable.
Thanks for clarifying. I’m going to think about what you wrote, just need to rest my eyes.
This might be a tip or not: When trying to find if your horizontal ipd is on the level between your eyes one can try and do the following. You need to sit with your head level. Any rolling will skew the two images. I found that large, pink floating brain in aircar. Flew so I had it in a far distance. Then I purpously changed the horizontal IPD so that the two images diverge. You might need to play with the focus of your eyes to get two brains floating next to each other. Now it is a bit easier to adjust the height of the different images so that they are level because you don’t need to close one eye and switch.
So I found out to keep them level my right eye had to be -0.8 lower than my left. If I then want to change my left eye horizontal ipd to 1 for clarity reasons, I can be fairly sure that my right will have to be +0.2.
No change in immersion for me this tuning session though.
thats why you need to use horizontal offset for both eyes to get scale right
In my case IRL ipd is 65.9 , mechanical IPD in HMD is set to 61.6 and horizontal offset - 1.4 left and - 1.2 right eye. For minimalizing distortion I’ve used vertical offset -1.5 and finally my vision and word scale is perfect !
But it also depends from facepad thickness and how munch velcro you have added to get proper angle between eyes and lenses.
absolutely! i should mention i am using the vive deluxe audio strap and facemask from my 5k+. Mask still isn’t perfect but feels better than the thin one i was sent with 8kx. still waiting for the second, thicker facepad.
Here’s the problem. In real life, if you do the same experience by closing the left and right eye quickly while looking at the same object…you will find that the object you’re looking at is not in the same position. At least according to my eyes lol.
I don’t know what it is, but setting my ipd to 61.7 rather than 60, makes the 3D effect better but the world scale larger. But oddly, I feel much more immersed in this larger world scale. It feels like I’m actually there and the most immersed I’ve ever felt in the Pimax 8KX. Which makes me think all the previous world scales I saw were too small. I think the world scale is too small on the Reverb G2 as well. Also when I set ipd offsets back to 0, I felt relief in my eyes.
So I think everyone is different. Right now I’m happy with 61.7, 0 ipd offset and -0.4 vertical offset for the right eye. Keep in mind I’m using the prescription lens adapters in a 3d printed part designed for 65 ipd, rather than 63.
Edit: Although at the same time the world scale still feels a bit too big. So should the ipd offset be positive or negative to make world scale just a bit smaller without losing immersion?
In real life my right eye image is slightly lower than my left, and in VR too. Brain magic fuses the two images so I don’t see double. I tried adjusting the vertical height in Pitool to make the them the same height but it feels very wrong.
The world scale is also very important to me to get immersed and it is bigger then one would think in first instance, i often use skyrim to check the scale.
I had the same experience with smaller world scale with the G1 but i thought is was due to the lack of mechanical IPD. Does the scale change if you use it on your G2?
