As I see so far on those videos and comparing it with some older 4K videos it is noticeable more PPD than on 4K.
Please confirm that. As I understand this prototype right now working on native 2560x1440 per eye just like 4K still don’t have full 4K ress as native resolution. Did I get this right or I’m wrong?
Bur the point is 4K got 2560x1440 but only 1280x1440 per eye. So 1280/100°FoV per eye = 12,8 PPD. With 5K or with this 8K prototype if it is work right now with 2560x1440 native limitation just like 4K model we got 2560/150°FoV per eye = 17 PPD what is significant difference even on same display native resolution. Also per eye size of the display area is double but FoV is not double. That I’m asume lens magnification value is not the same as on 4K model so I gues on 5K and 8K models magnification of the lens is 25 to 30% smaller what additionally positive effecting on SDE.
So my suggestion is for comparison this video true lens need to be recorded under same condition and compare 4KB vs 5K and 4K vs 8K to see the diference. It doesn’t need to be to represent what you see with your eye, could be even more zoomed but in same way like on this video.
Okay I can help with this as recently was @ Toronto convention.
4k remember is 25601440 (12801440/eye) upscaled to 38402160 (19202160/eye) with a diagonal 110° FOV. So even though the input is lower I submit you still need to use the native resolution of the panel.
Now with the 8k model accepts 51201440 (25601440/eye) upscaled to 76802160 (38402160/eye).
Your idea of shooting video compare with footage from 5k & 8k models comparing to Oculus cv1 & vive is a great idea as the 8k is considerably better. For a rough idea it is to the 4k what Oculus cv1 is to Oculus dk2. Though that might be not enough of a idea on how much better.
As for ppd the 8k feels considerably higher. I have for example with a completely still scene i can see the wave/arcs on the 4k. The 8k on the other I couldn’t find it like on the 4k.
Kevin from Tom’s Hardware & I talked about a variety of things including PPD (Pixels Per Degree) vs SPPD (Sub Pixels Per Degree) as presented here awhile back in the forums. SPPD is a better standard to compare headsets as the sub pixel density does indeed affect the quality of & not limited to sde (screen door effect). As we learned that sub pixels play a very important role as seen by Psvr sde vs rift/vive sde.
So a couple of spoilers more.
-optics & screen considerably improvements to 4k. Enough to say night & day.
***Final note the 8k model I tried out is not the new prototype being showcased in the US next week.
Yes something like that. PPD or SPPD dosen’t matter point of my calculations was to have some numbers to compare and it is calculate under same conditions to all Pimax Displays.
I didn’t want to compare it with CV1 or Vive on purpose. As this video comparison coming from Pimax it self will be better to exclude Vive or Rift, you know complaining, copy right or similar shit. If we compare older Pimax models with new will be good and we already have lot of comparison 4K with competition to figure it out.
I want to compare 4KB with 5K because they using same OLED displays as well 4K with 8K to see the difference because I belive as well there some lens diference which is affecting more better on SDE so we could see the difference that way. Comparing 5K with 8K is not that important same as comparing 4KB with 4K.
But yes i do agree doing a 4way compare between PiMax BE beside 5k. & below have PiMax 4K beside PiMax 8k would be awesome!
I would submit do 2 sets. Maybe Lucky’s Tail as currently showcased. & maybe ED cockpit with slow panning & stopping facing the front so folks can scrutinize the cockpit controls.
Yes Lucky’s Tail could be good but only if there will be replicated exact condition from previous testing.
But if we don’t have exact same condition dosen’t matter. Just need to be same thing for comparison dose 4 models.
Lucky is good for SDE comparison because of the low color background it is easy to notice.
About pixel density DCS is great because good spotting targets on ground and in the air on horizon in the distance or reading instruments in normal seating position without leaning forward. In DCS that is the game changer.
DCS got one great feature. You could save your mission as track and watch it again true game like video but it is perform true game like you are flying. This way you could recreate exact same situation on itch VR model without need to flay and fixing camera to exact come position when you are recording video.
i made a video of dcs world in the 4k, i figured id post it here for interest sake. to me the 8k video they put up is very similar quality apart from my pc lacking preformance.
My fav airplane, but I am flying it with Pimax B1.
That plane has lots of details , I only see them at 2.5K thanx to Pimax box mismatch, but I pledged for 8K. I can’t wait, I am buying this headset only for this game, and for this specific plane.
It is hard to tell but as I see those 8K videos give me impression of much sharper picture what suggesting little bit more PPD anyway.
I think instruments is more readable on 8K.
That is my impression, but as I was wright about it this videos not represent real differences if they are not filmed under exact same condition so could mislead us.
For some serious comparison we need to wait for proper videos for comparison.
its common sense really, anyone that looks at the 2 videos and thinks its an actual representation of a user experience is kidding them self. the idea of these videos is to give a general look at a base level of detail that is expected from the screens. “ability to see details and sharpness”
no VR headset company can show u the quality of their headsets without u wearing one. but if they wanted to send me an 8k to try i would happily make a new video for dcs world @Matthew.Xu
standalone , for module support. i dont really like steam to be honest. ive read of people running dcs world without steam as it has native vr support but i dont know if i can do that with the pimax due to the way it uses emulation of other devices.
So do you need steamVR running or do you just run the Piplay software and then load up standalone DCS? I was under the impression DCS only detects the Rift or the Vive.
pimax emulates the rift. when connected in device manager it shows up as a rift. u have to have oculus home installed and generally install programs in OH then restart piplay and it detects them. the latest update of piplay is abit better but it is defiantly the bad side to pimax , most issues current users have is due to bad software , this is why i have not backed the 8k as it will need more software to warp the image to the wide lenses. and i know from experience how tricky it can be to perfectly warp an image via software to a screen as i used to run a multi projector setup on a curved screen for my flight simulator.
anyway to run dcs world i first open piplay and confirm 4k is connected, then i open steam VR and make sure i have a green icon, then i run dcs world which opens oculus home automatically. i haven’t spent the time to look into seeing if i can stop all this as once i am in the sim it doesn’t matter and i have a smile on my face. but when the software crashes and i have to try to restart it all the amount of tasks i have to close via task manager makes me wonder how my pc even runs windows explorer.
Hello matthew.xu, please could you show us the complete video of Dcs World, here we are an entire community of virtual pilots with great desire to see the fantastic resolution, we have been waiting for years to see in conditions inside ours aircrafts/helicopters cockpits.
Actually is impossible look the enemies, instrumentation, panels, indicators, etc etc.
The resolution is very poor in Vive and Oculus.
This is going to suppose that many undecided pilots, can appreciate the great jump of fov and resolution and they are encouraged to participate in the campaign.
I am encouraging all my fellow pilots to participate and I have already managed to do 12, but I want us to be many more, mathew help me in this work.
Pimax let us fly in conditions !!!.
Thank you very much for your job and new technology.
The question remains if DCS can handle the Pimax 8k performancewise. DCS is not very well optimized for VR and especially on the Vive, with its inferiour reprojection you struggle to get a smooth experience.
Is there any word on how the Pimax will handle reprojection / asynchronous timewarp?
Add @Matthew.Xu to you post. He will see it easier
@Matthew.Xu DCS has a huge community interested in VR. If you could take a good video showing the details in the cockpit you would get much interest in the 8K. Please take video in 4K mode
