Stereoscopic 3D

[ThreeDeeJay]

I have NVIDIA 3D Vision hardware for stereoscopic 3D and I'm trying to get it working with Orbiter's built-in 3D, but I'm not quite sure how to turn it on. Apparently it requires D3D9Client which is is only available in Orbiter_ng.exe in 2016 and 2024 versions but they both crash after the loading screen. Only the latest development build runs with D3D9 on my end, but still I'm not getting native 3D.

I can force 3D via the driver, but I'd rather use native 3D when possible, to hopefully avoid artifacts like the frustum culling AKA black triangles/geometry disappearing off the side edges like this:

[ThreeDeeJay]

Upon further investigation, I came across a post where someone fixed 3D, but apparently it's still driver-provided 3D, not Orbiter's
https://xenforo.orbiter-forum.com/threads/d3d9client-development.16787/post-262127

And a developer mentioned 3D requires compiling with NVIDIA API
https://xenforo.orbiter-forum.com/threads/d3d9client-development.16787/post-262126
So is this still the case? Are there any steps to compile with NVIDIA API?
I could probably set up GitHub actions to do it but I'm not sure where to copy the NVAPI files and what files to edit, if any.

I'm also particularly interested in getting Orbiter's 3D working because Grand Theft Auto IV seemed to use the same method (NVidia API Lib), but I can't get it to work either so I was hoping figuring Orbiter would help me get GTA4's native 3D working too.

[ThreeDeeJay]

I also tried Orbiter2016/Modules/Plugin/D3D9Client.dll (compiled with NVAPI) then enabling the module in Orbiter_ng.exe, but I just get a black screen and this error:

P.S.: I did install the DirectX runtimes the PDF specifies.