Pimax 8k/4k

[iLoveCats]

Thoughts? I just bought a vive and I have to say I am not impressed with games that are not cartoon like. They just look like crap. So is this pimax going to be or already is the next and best for vr? Any downsides? Not even sure my video card (1080) will be able to run a pimax at 90fps. All i know is that vr is great but the vive only makes me want way more.

[Loghunter]

greater resolution is the future but not without eyes tracking to reduce the GPU load
for now no cards can handle true 4K at 90 FPS
but its gonna be solve with foveated rendering

[iLoveCats]

So is this promising? The pimax?

[Loghunter]

i think they have a eye tracking module planned but i dont know if ts any good so wait and see
as always

[Black Blade]

I assume its going to fake 4K or 8K or what ever and its not really going to be there, so i am assuming it be nice, but its not going to be that much better then a Vive or a Rift for the most part
For real improved headsets il wait a while longer the prices are also going likely to go down, and il not really put anything on the Pimax before its really realsed and can see what its really woth in home envioment

[Loghunter]

just wait for final reviews ^^

[Sticky Honeybuns]

It isn't 8k rendering. The 8k headset isn't even true 8k screens. The 8k and 5k both upscale from a lower resolution. There's several articles telling the exact details and I don't want to state the exact resolution because I can't remember. This is easy to tell that it upscales simply from the hardware it's using. It would require at least two HDMI 2.0 cables to run 8k at 60 FPS. Two HDMI 2.0 could run the Pima at 8k@90 simply because it's only about half of true 8k resolution.

That being said I would still love to have the 8k version and it should look better than the Vive. I just don't like Pimax marketing trying to trick people into buying something it's not.

[Enemy Unknown]

There are coold advantages at the Pimax, like the screen door effect is solved.

But FOV 200° is taken by a stretched image. And the higher resolutions are an upscaled image.
It is good to see companies experiment in different ways, but Pimax is nothing you should regret that you bought the vive now.

I for myself, know the difference between the last time i used a headset 1995, it is a gigantic jump from that times to now. So i compare the past with the now and can maybe far more enjoy what we have.

And ED, Alien Isolation, Subnautica are far away from looking comic like in my taste. While ED and Alien run like a charm, Subnautica's Optimisation will truely start after the release this month.

Depending on your Hardwarepower and settings.
Maybe you didn't knew what to expect and what are the limits nowadays, nothing wrong about it, just sometimes people awaits the same picture as the monitor delivers. Promotion Videos/Trailers tend to show that it looks exact like it.

Hope you still enjoy and can find your fun into the 3D World. :O)

[GameMaker]

Originally posted by Loghunter:

greater resolution is the future but not without eyes tracking to reduce the GPU load
for now no cards can handle true 4K at 90 FPS
but its gonna be solve with foveated rendering

The pimax headset does not force 4K it has High res panels but your GPU only renders at the games selected res.. so if you are playing Space Pirate trainer at 1080p then the Pimax needs no additional GPU it will simply accept the 1080 p signal from your card and it upscales internally the the pimax native resolution. This gives you greater visuals by removing the screen door effect with much higher pixel density, (with no additional gpu power needed) and gives you a massive 200 deg fov!

The pimax with its internal upscaler is a dream come true because it can improve as gpu/ cards are able to send higher res to the headset. IT DOES NOT NEED MORE GPU POWER THAN VIVE OR RIFT.

So therefor foreated rendering is not needed any more on the Pimax than Rift or Vive. Pimax has set itself above as the only headset that will evolve with your gpu setup, not be left behind.

[iLoveCats]

Thanks guys!

[bonds7]

I am really looking for PRIMAX 8k, been waiting for a major improvement with the HMD's and from what I have read it looks like primax will be the one to actually deliver. It says it will work with the vive system so that is good since the HMD is the only thing I want from them. Going to wait till the consumer version is out before I buy it though, I also would like to wait for lighthouse 2.0 and knuckles to be out by vive or LG before getting the primax HMD.

[Amylion]

Originally posted by Sticky Honeybuns:

It isn't 8k rendering. The 8k headset isn't even true 8k screens. The 8k and 5k both upscale from a lower resolution. There's several articles telling the exact details and I don't want to state the exact resolution because I can't remember. This is easy to tell that it upscales simply from the hardware it's using. It would require at least two HDMI 2.0 cables to run 8k at 60 FPS. Two HDMI 2.0 could run the Pima at 8k@90 simply because it's only about half of true 8k resolution.

That being said I would still love to have the 8k version and it should look better than the Vive. I just don't like Pimax marketing trying to trick people into buying something it's not.

This may sound pedantic, but it's necessary to correct your own pedantry: There are no "true 8k screens", because 8k alone is not an exact term. You probably mean 8k UHD, but that's your problem. 8k just refers to the horizontal resolution.

The Pimax is not using HDMI, but DisplayPort.

[Amylion]

The Pimax 8k has two 4k UHD LCD displays (with RGB matrix which has 30% more subpixels than the pentile matrix of the Vive). SteamVR will render the game graphics at 2 x 1440p (2 x 2560x1440). The headset will upscale it to 2 x 4k UHD (2 x 3860x2160) and present it with a field of view of 200°.

Keypoints:

• huge field of view close to natural vision
  
• almost no screen door effect
  
• much higher resolution / pixel density
  
• much less godrays
  
• not as bright as the Vive
  
• worse black levels than the Vive
  
• lighter than the Vive

It's important to note that the Vive displays waste a lot of rendering power, because currently the software compensates lens distortion and lack of resolution with heavy supersampling. At 1.0 supersampling setting a SteamVR software already renders at a 1.4 times higher resolution (= 1512x1680 x2) than the native display resolution (= 1080x1200 x2). A lot of rendered visual data gets lost this way.

The Pimax goes the opposite way: It takes the input and because its resolution is much higher it upscales the content to get rid of some aliasing. There is much less visual data loss and therefore relatively speaking (= not taking into account the gigantic field of view) much better image clarity without much additional computing cost.
That means most of the additional load is owed to the huge horizontal field of view, but this can be limited by software tricks (like Nvidias Lens Matched Shading), by just reducing rendering fidelity in the periphery of the headset.

https://developer.nvidia.com/vrworks/graphics/lensmatchedshading

PS:
Of course SteamVR still has to render at a higher internal resolution to account for lens distortion and magnification in the centre, but overall the whole process is much more efficient.

Or in other words: In theory you could just render the game at the same internal resolution as if it was a Vive (with the exact same load on GPU), and still get a much better image quality.

[Sticky Honeybuns]

Originally posted by Amylion:

Originally posted by Sticky Honeybuns:

It isn't 8k rendering. The 8k headset isn't even true 8k screens. The 8k and 5k both upscale from a lower resolution. There's several articles telling the exact details and I don't want to state the exact resolution because I can't remember. This is easy to tell that it upscales simply from the hardware it's using. It would require at least two HDMI 2.0 cables to run 8k at 60 FPS. Two HDMI 2.0 could run the Pima at 8k@90 simply because it's only about half of true 8k resolution.

That being said I would still love to have the 8k version and it should look better than the Vive. I just don't like Pimax marketing trying to trick people into buying something it's not.

This may sound pedantic, but it's necessary to correct your own pedantry: There are no "true 8k screens", because 8k alone is not an exact term. You probably mean 8k UHD, but that's your problem. 8k just refers to the horizontal resolution.

The Pimax is not using HDMI, but DisplayPort.

8k is an exact term. 8k refers to 7680x4320. There are true 8k screens available. 2k, 4k, and 8k are all standard terms in the videophile world and Pimax basically just redefined what 8k is. This would be fine but they aren't selling it that away.

As far as cables it would still require two DisplayPort or two HDMI. Neither standard supports that resolution.

[RED-FROG]

After doubts about the Pimax 8k, I finally backed it. (had to wait for my new credit card to arrive)


Amylion perfectly sums it up and perfectly understands the way Pimax 8K works. If you still don't know how Pimax 8k works and that it works, read his post again and watch some youtube videos.

The kickstarter now is at 2.102.863$ and raising.

[cmdskp]

@Sticky Honeybuns: 8K is not an exact term for a resolution of two dimensions - it is a simplified short and not accurate.


The exact, official resolution name for 7680x4320 is: '8K UHD'(that is 4320p < Nothing like 8K vertically - which is the common misleading by TV companies originally to shift focus on the (bigger) one dimension and ignore the near half-res of the other!).


'8K' is only a reference to the approx. horizontal resolution - take '8K Fulldome' - which is an official 8K by 8K resolution. As we get more varied aspect resolutions with extra wide-screens and HMDs(which are not equatable to TV/Monitor standards), it'll become necessary to stop using '8k' as a short for 8K UHD and state the full, exact resolution term.


The Pimax 8K will only need a single DisplayPort cable, due to the inbuilt upscaler that takes an input resolution of 5120x1440 and upscales it.