I’ve been using vorpX almost since the day I got my 5K+, and it’s been extremely good, especially for older titles and especially for older titles for which a G3D profile exists (i.e. Fallout 3).
Suggestion: I’m fairly sure Ralf (vorpX creator, coder, etc.) does not have a Pimax and he really needs to get one. I would be incredibly helpful to everyone if Pimax would send him a top-end HMD. He’s got everything else he needs, but the HMD. Maybe he could re-code vorpX so it would not require PP.
Recent Results: Other than older titles that run well, I have played a few newer titles as well, including Cyberpunk currently. My GPU is a factory overclocked 3080 Ti that runs just over 2GHz. My CPU is a 5900x. Outer Worlds runs extremely well and is great in full VR mode (head tracking is slightly wonky, but you can get used to it.) Greedfall is also extremely good and runs well.
General Findings: Older titles with good AA methods will look great and run well at lower resolutions with excellent clarity. For example, F03 with regular AA methods is very crisp from 2560x1440 up. Rendering the game at 4K is best, but at least in older titles that use good AA it won’t be necessary. Newer title that use crappy blurry AA, such as TAA (Terrible Anti Aliasing) will, unfortunately, require you to push every possible pixel and turn up the vorpX sharpening as much as you can possibly stand. Otherwise they are just a horrible blurry soft-focus mess. This means that it’s much harder to get newer titles to run well than it should be, since you are essentially being forced to overcome limitations of ‘modern’ AA methods that look awful by brute-forcing more resolution that you would otherwise need. Keep that in mind. I’m barely managing 36fps/72hz out of Cyberpunk (Ultra RT settings) at just under 4K, Z3D, and DLSS at “Quality” setting. It looks very good that way, but obviously that’s only good enough for Virtual Cinema mode, way too slow for full VR.
Recent Issues: A) I do not know exactly when this issue occurred as I made a number of nearly simultaneous changes to my setup, but I think the problem is current versions of PiTool. Let’s say I’m 75% sure of that: I can no longer use Pimax’s own Motion Smoothing (Brainwarp) with any title through vorpX. I used to be able to turn on Motion Smoothing and use it if I preferred. Now I am limited to using the built-in vorpX Motion Smoothing methods. They are pretty good, but occasionally I found a title where Pimax’s own Motion Smoothing seemed better. I would love to be able to use that again. Has anyone else using vorpX noticed this same issue? B) Recent updates to either PiTool or vorpX, or a combination of the two, has caused more weird screen-tearing and sync-issues than I used to get. I often have to leave significant performance on the table because many titles won’t work properly if I push the GPU much above 90%. Other titles are fine (Greedfall, for example, I can run through vorpX pegged at 100% GPU usage and all is fine.)
I would be great if Pimax would reach out to Ralf to try and work through some of these issues, as vorpX is key to bringing so much of the gaming universe to our HMDs.