PD vs Resolution

[Ourorborus]

I currently use a Lenovo Explorer which despite its shortcomings I find a great match for my GTX1060.

 

My upgrade path is to get a higher end card toward the end of 2020 once the dust has settled from the Nvidia/AMD releases. following that I will probably look to upgrade my HMD next year.

 

HMDs are very expensive in the antipodes so I don't have a lot of cash to try the various options. However I have, in theory come up with a concept to get an idea of the FPS I would achieve with a different HMD before purchase.

 

When you adjust the steam VR PD/SS slider, it displays the effective resolution as well as the percentage. So if I set 100% I should get the 2x1440x1440 of my current HMD (or 4,127,400 pixels).

 

If I set Steam SS to 1930x1930 then my pc would be processing 7449,800 pixels before downscaling to the HMD. If I ran this with my current HMD, would the FPS be roughly what I could expect from PIMAX 5k which has 7372,800 pixels? If it does I could make similar adjustments to test FPS on a range of HMD potentials without purchasing.

[speed-of-heat]

Yes, ish, I did something similar when moving to the reverb from my oddy+ ... my experience was I got slightly better perf than I was expecting.

 

I would say if you are cash strapped then be aware that you will require lighthouses and controllers ( the latter only if you want to use it for something other than dcs) if you use the pimax... which will drive the price up further. Also from a point of view of clarity you need to consider pixels per inch ... whilst the pimax 5k has a lot pixels they are quite spread out in. Part because of the extra fov.

 

Also just to be sure pd and ss in steam are different.., https://forums.eagle.ru/attachment.php?attachmentid=235200&d=1588907676 is a simple excel sheet to do the calc

Edited August 28, 2020 by speed-of-heat

[VitS]

I currently use a Lenovo Explorer which despite its shortcomings I find a great match for my GTX1060.

 

My upgrade path is to get a higher end card toward the end of 2020 once the dust has settled from the Nvidia/AMD releases. following that I will probably look to upgrade my HMD next year.

 

HMDs are very expensive in the antipodes so I don't have a lot of cash to try the various options. However I have, in theory come up with a concept to get an idea of the FPS I would achieve with a different HMD before purchase.

 

When you adjust the steam VR PD/SS slider, it displays the effective resolution as well as the percentage. So if I set 100% I should get the 2x1440x1440 of my current HMD (or 4,127,400 pixels).

 

If I set Steam SS to 1930x1930 then my pc would be processing 7449,800 pixels before downscaling to the HMD. If I ran this with my current HMD, would the FPS be roughly what I could expect from PIMAX 5k which has 7372,800 pixels? If it does I could make similar adjustments to test FPS on a range of HMD potentials without purchasing.

 

You are right but it still very rough estimation. Because PIMAX and Lenovo are actually using different APIs in the end. So it really depends on how good WMR driver for SteamVR is compared to PIMAX driver.

[Ourorborus]

Thanks for the confirmation. I only used pimax as an example although it is high on my list as fov is important to me. Who knows what will be available when it comes time or how powerful the new gpus will be

 

Sent from my F8331 using Tapatalk

[wormeaten]

Best buy option is Reverb G2. Best clarity of all VR and one of the lowest priced, 600$.

 

 

Have in mind that 3070 will be card around 5% lower performance than 2080Ti but for affordable 600$ too.

 

If you wait AMD as well maybe situation could be even better. Who knows?

 

 

For some preview just check what performances got people who using Reverb 2080Ti combo right now to get picture what you can expect and for what price with such combination G2 and 3070.

[wormeaten]

Also PD is not that important. Most important is PPD, Pixel Per Degree.

In PPD G2 is without the competition and clarity overwhelm all this FOV advantage Pimax or Index have over G2 in complete picture.

 

 

VR is combination of multiple stuff and best one is those who made best combination which effecting on general VR impression and G2 is for using in simulations have best combination.

[BIGNEWY]

My advice is to start with PD 1 in game, and use your native resolution for your headset.

 

Then adjust to find the balance for performance and looks.

 

Thanks

[Motomouse]

You can not simulate the performance of different HMD by adjusting PD very well. (Experience with my Rift and my HP Reverb.)

[dburne]

You can not simulate the performance of different HMD by adjusting PD very well. (Experience with my Rift and my HP Reverb.)

 

Yeah I think native resolution will always perform better versus the same resolution achieved via SS or PD.

[wormeaten]

Also PD is not that important. Most important is PPD, Pixel Per Degree.

In PPD G2 is without the competition and clarity overwhelm all this FOV advantage Pimax or Index have over G2 in complete picture.

 

 

VR is combination of multiple stuff and best one is those who made best combination which effecting on general VR impression and G2 is for using in simulations have best combination.

 

 

Sorry Guys I mix PD with native resolution. My correction.