This might sound a bit of a heavy title but I mean it. My 8KX combined with my 1080 ti has landed me exactly where I wanted to be with VR. I really wasn’t expecting that. At first I was a bit underwhelmed but after a few days of playing with various settings of Pitool and Steam SS I found setting Pitool to something high like 1.5, 1.75 or 2 and keeping Steam SS to 20% the headset goes into overdrive with a clarity and smoothness combination that I wouldn’t have thought was possible - not with the 1080 ti anyway.
All I can say is thank you Pimax for making this happen and sticking with it - it’s been a tough road for everyone involved but you really have done it. We just need to get the message out there that the 8KX is the real deal.
Hmm I found my 2080ti not fast enough for the 8kx. In my opinion you really need the 3090 and even with that I can not run everything smooth although for most games it’s fine. I run ss at 100%
I assume SS stands for “supersampling” here. Can you advise where Steam SS can be set? The only reference to “supersampling” I can find in SteamVR’s settings is something called “advanced supersample filtering” (off/on).
There is something called “supersampleScale” in the steamvr.settings file which is set to 1. Is that it?
Thanks for this - I can definitely see an improvement in quality, although the FPS loss is a bit too much for me on 1.75 and above. I’ll just have to keep waiting for my 3090, but at least thanks to you I now understand which parameters I can tweak when it arrives.
@SweViver Hey Martin, I notice that Pimax Experience offers a per-game SteamVR optimisation profile which include supersampling, which I assume is the same as what SteamVR is now calling “resolution per eye”. But I cannot apply these profiles - I get an error message saying it failed. Is this because the functionality is not yet enabled in Pimax Experience?
Hi Troz, just seen you post and it seems neal_white cleared this up for you - glad it has helped. The key is having the guts to drop supersampling in SteamVR to a very low level which goes against what we have been brought up to learn!!
I think the supersampling in Pitool is doing it in a way that works better for the Pimax headsets - so basically you want to be doing as much supersampling as you can with Pitool and less in Steam. My guess is that you are then getting much more of the advantage of being close to the ‘native resolution’ of the headset. For example, if you try running a high resolution monitor at a lower resolution and compare it to another monitor that has the lower resolution as native, the lower resolution monitor will be sharper. My guess is that something related to this effect is going on here with the Pimax headsets.
Hi Djonko, I think the problem is that you are running 100% steam SS. For the first few days I did the same and was disappointed and even slightly angry thinking all the hype by the youtubers was BS. Try dropping to 20% (I know it feels just not right) and then increasing the SS in Pitool to the max you can go for the game. I can get pretty much any game running smoothly. To be fair I have to drop quite a bit of the eye candy in heavy games like Fallout 4, Assetto Corsa and Dirt Rally but with the extra res of the 8KX and the lack of SDE it’s a big step up. I’m even cancelling my 3080 order as I’m going to enjoy enjoying my 1080ti for a while longer!
There’s an old thread on here about the 5k+. Running PT at 2 but setting SteamVR to a fixed rate of precisely 0.25 seemed to result in a cleaner image with less artefacts than 1:1, as suggested by Gared.
I haven’t done this with the 8KX yet but worth a test I’m sure. I want to maintain native res, so any drop of SteamVR resolution would be in a proportional ratio to PTRQ increase to maintain that. A proportional drop will also lead to less artefacts in the pixel conversion process, as I understand it:
Yeah, I’m absolutely loving mine. I feel like we have now finally hit the bar that we needed to in resolution, lack of SDE and smoothness and I can just enjoy being transplanted into so many fantastical worlds.
Hi acegamer, yes 20% in SteamVR itself as a global setting. I’m not using PE at the moment. I tried it but there were then just too many places to make adjustments (Pitool, SteamVR, in games and then PE on top was just too much) so I found it harder to work out what was going on.
I need to give it some more time - I think I was getting in a bit of a tiz because it seemed like sometimes it would be there and sometimes it wouldn’t (it seemed to quit on it’s own if I remember) and so I was going back to Pitool and Steam and then it would be there again. I didn’t spend enough time to work out what was going on.
Fair enough, it didn’t work at all for me with 0.5 but no problems with 0.6.
Not sure about the self quitting, don’t think I’ve seen that.
Pimax Home needs to be ticked in PiTool for it to load. After that, it always loads for me when I power on the X, or when I quit SteamVR. Then it turns off when I turn off the headset.
