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I’ve been having some luck with OVR Toolkit. It’s a SteamVR overlay to display and control windows or desktops in VR games.
You can add the game’s desktop and adjust it so overlaps the vorpx screen in immersive/cinema modes. Then set it at 5FPS/eco, 0% opacity (with a small hack) and disable touch mode in general settings.
This is the result I got with The Witcher: https://www.youtube.com/watch?v=rS_eaBgu9PE

A few words of caution:
Games meant to be used with a mouse can have small UI elements. If you ever used controllers to point in VirtualDesktop or WMR/SteamVR desktop viewers you know they are not ideal.
OVR Toolkit is a paid app, I use it for other things and consider this use case a bonus. The experience might not be as expected and future updates might make it unusable since it’s not an intended purpose.

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If you have a high resolution headset I recommend adding a custom resolution, depending on your monitor. 2560×1440 seems ok on a reverb G2.
This is already part of the hints in vorpX and there’s also a tutorial in the configuration app. But I find it really improves the experience for games like GRIS because there’s lots of details and smooth shapes. Also your GPU has a better chance of being able to push the frame rates with this game.

Just note that you need to change the actual resolution of your monitor before starting this game. Even in full screen the resolution option in GRIS does not seem to change the actual monitor resolution, it just renders at a lower resolution and upscales. So it does not show resolutions higher than the current resolution of the monitor it’s running on.

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The general use case of what @HTMadge described seems to be for games that have two or more mechanics that are very different.
For example RPGs can be very different in exploration vs. combat. When exploring it’s nice to look around, but in combat the camera can follow a target. With head tracking there are two sources trying to orient the camera resulting in a janky experience.
Shooters can also have very different mechanics for example switching from first person to third person when entering a vehicle.

Another issue is with games that display kb+mouse hints when the mouse is moving, even if the control option is a gamepad. For the most part this is just a minor nuisance. But during some scripted interactive action sequences the mechanic itself is that you need to press some buttons the game tells you to.

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What version of the driver is installed? Do you have a screenshot?
There should be a customize button like this:

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Serious sam TFE, TSE and BFE have versions with native VR support (ex. TFE VR on Steam).
But each game is more than twice the price of the non-VR version and there’s no discount if you have that. I can’t recommend them at the current price.

In any case they should be great in cinema mode as well, especially if you already have them lying around or get them cheap.

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I just tried Seasons after Fall. It’s also a relaxing puzzle parallax side scroller with great drawn animations.
There’s no official profile yet, but I created one based on GRIS (they both use Unity) and it works quite well. It’s published in cloud profiles so you can simply import it.

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I’m getting glitches all the time in G3D at any 3D strength (except 0) with both the official profile and steph12’s cloud profile. Z3D isn’t available.
I tried various resolutions, windowed/FS etc.
Maybe the game was updated recently. I’m using the Microsoft Store version.
Glitches are things like differences in brightness, light bands and missing background objects in one eye:

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I can confirm it works in windowed mode now. I could swear that before the update it used to be the other way around.

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Steam just updated DMC 5 and now the game crashes.
It fails creating the swapchain: https://imgur.com/a/pDAi7HI
This is with the official profile

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The solution for me was to use SteamVR instead of Oculus in vorpX settings as it was proposed by Ogrescar here: https://www.vorpx.com/forums/topic/genshin-impact-free-to-play-freezing-on-startup-with-vorpx-2/
Note you still need teh firewatch profile.

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Same here. I don’t know if this is something to be expected. There are several could profiles with downloads so there should be plenty that tried this game. It’s odd no one else complained about the frame rate.
I spent a couple of hours with various settings but they don’t seem to make much difference.
In the end I just used Z3D instead of G3D. But even for that, because program association buttons are disabled on official profiles you have to jump through some hoops to get it working, mainly discussed here: https://www.vorpx.com/forums/topic/devil-may-cry-5/

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The FPS in official G3D profile is too low to be playable, at least if you are sensible to motion sickness. I get 35-40 FPS on a 1080ti (config set to DX11, vsync forced off etc.), whereas with no depth I get 120-160.

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Finally got Z3D to work. It works only in Full Screen with the profile based on RE7.

Now, I’ve tried full screen before, the culprit was actually Steam, sort of. I know the vorpx troubleshooting guide mentions running the game directly, but if Steam is not open the game will refuse to start so I abandoned that approach.
When launching from Steam everything seems fine. It starts in full screen, you put on the headset, and it seems to hook OK just without Z3D. What happens though is the game switches to windowed shortly after, you just can’t see this inside the headset.

So, to get Z3D working I had to
– copy the game executable and assign a custom profile based on RE7
– launch the copied game executable directly, but have steam open at the same time

After all this you need to go to Input Settings and turn off xBox controller override (if you are using one), otherwise the controls are messed up.

FPS will still drop during cutscenes but I can live with that, this is an issue in multiple games.

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With RE7 profile the G3D is indeed messed up, with differences in brightness and visible objects between the eyes (and runs at 40 FPS).

However Z3D is still not working.
The option does appear in vorpX menu but it does nothing. There’s no visual difference between Z-Normal/Z-Adaptive and OFF, or using something like Virtual Desktop.

Thanks for the help though. I guess I’ll have to stick to Reshade + Depth3D on this title.

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Is there any way to get Z3D working?
G3D works great visually but FPS is abysmal. I get 120-160 with no depth and 35 to 40 with G3D.
It’s working fine with Reshade + Depth 3D at above 100 FPS, but I would prefer to have it working in vorpx cinema.

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