Br0, it has nothing to do with alliacing or color banding (as there are only 2 colors, black and white).
This are cromatic abberation or a similar effect that comes not from lences, but from software (supersampling) or scaler itself. Its a simple picture, black background and white lines. While 5k shows correctly black and white, 8k mixes all type of colors on white. You had to zoom to see this (remember, in the headset it will be zoomed!)
And now imagine you’re driving behind a car with white spoiler and you see different pixels on a white pattern changing their colors to RGB like a freaking rainbow. I had this issue many times ago with pimax 4k. Dont want it again, this might distract a lot while driving.
Aliacing itself is not a big issue, as you can always use some cheap FXAA or demanding SSAA increasing pixel count. You will need horse powers for this, which you can theoreticaly get from not using any supersampling on 5k.
@SweViver what you think about that picture? Did you noticed color artifacts with 4k / 5k / 8k? Wasnt this an issue for you?
[quote=“industria, post:161, topic:8287, full:true”]Br0, it has nothing to do with alliacing or color banding (as there are only 2 colors, black and white).
This are cromatic abberation or a similar effect that comes not from lences, but from software (supersampling) or scaler itself. Its a simple picture, black background and white lines. [/quote]
There’s another equally likely possibility: It’s a camera artifact, triggered by the finer pixels of the 8K.
@SweViver what you think about that picture? Is this a fair representation of what you saw in the 8K?
Highly doubt so, as i said before, i have reported that issue with pimax 4k 1 year ago (twice, posts can be found by “color distortion” keyword). Once supersampling rate goes to 1.5 or higher - you will notice color distortion on white parts. In some games you wont notice this, in others it might irritate (like racing games). This could affect both 5k and 8k (unless its a scaler issue, then only 8k). The problem is (as we know) that 8k needs this supersampling for better upscaling, while 5k can easily work with standard rates and spare some power for proper SSAA or better graphic settings.
Actually, SweViver has now said it was a camera artifact…
[quote=“SweViver, post:95, topic:8394”]There is one thing to remember here. Your camera has a panel with a pixel arrangement as well.Align the camera pixel pattern to the image you are taking photo of and you will get more clarity
Camera panels have always horizontal/vertical pixel matrix. Of course it will never look good photographing diagonal pixel alignment with a horizontal pixel aligned panel. That creates color fringing and aliasing. And thats what you see in basically every 8K photo[/quote]
Here’s a another comparison shot he made… notice the lack of color fringes…
I’ll discart this video for now and wait for the new test using the new released Pitool version which seems to improve the rendering quality in 8K. I’ll wait for @SweViver to provide more details
The truth is you’re not constantly moving your head around though. When you stop to focus on something it is relatively still and that’s when you are looking for the quality.
Its pretty low quality picture and still white doesnt looks same Anyway, if thats fine for you guys - 8k is a good choice.
For me its no deal, once seen now i know this artefacts might move from 4k to 8k, so ill rather stay with 5k to decrease any chances of such things and simply choose clearness over sde.
Looks like @SweViver has a new video with the PiTool update and he’s able to see big gains for both headsets, but more so for 8K. This is not going to be an easy decision. If foveated rendering ever materializes, then where you look won’t need to be compressed/downscaled and where you aren’t looking could be more downscaled and could therefore theoretically appear much sharper than 5K+. So this may be a question of how talented the software devs are to get what is possible from the higher res screens of the 8K.
no its not like that, the scaler in the 8k is fixed, so the input signal is always the same for 8k and 5k+, any oversampling you put in will have its positive effects on both only the scaler in the 8k will “smooth” the picture, so it never will be sharper, just may be as sharp as 5k+
and as there is no way around the scaler there is no way to make use of the higher resolution display in the 8k
face it, the difference will never be mind boggling, at best the 8k will have a better SDE, at some point you can oversample how much you want, the 1440p signal is the limit for the 8k too
btw
the eye tracking module as stretch goal is also for 5k(+) so any gain in more oversampling will be available to both headsets
we already asked if the scaler can be tweaked to receive a higher res with lower frame rate, more picture res with 60hz (whatever can be squeezed trough the DP Port) and then upscale it to 4k - the pimax answer was NO
ahh, ok i was hoping for more tech detail i might have overlooked
until yesterday i was hoping that some of the things like color or contrast of the 5k+ could still be tweaked as pimax might have shortly combined the new display with the headset but from the new info for backers yesterday we know now that it was in development/testing since may, so they should be done tweaking the display to look as good as possible
This. But the question is at what performance cost relative to the 5K? It seems between v74 and v76 the story has changed a bit so that the difference is not as large.
Backer 2500 (ish) here. I’m still leaning towards staying with the 8K. Really want to get as little SDE as possible. I’m thinking my usage will be about 30% movies, 30% car racing, 40% other gaming.
I think the difference between the two in terms of image quality and computer use has shrunk to the point where for me it comes down to the pros that the 8k seems to have, warmer colours, better contrast, less SDE. No matter what though, the idea that these two headsets now stand miles above anything available in the current gen means I’ll be a happy camper when I have mine. I originally said I wanted to wait for tracking+headset+controllers, since I don’t have another headset, but now I’ll probably just take the headset when offered and wait on the rest, at least I can do seated experiences.
Anyway, if thats fine for you guys - 8k is a good choice.