Single-pass instancing and XR Plug-in

[SyrDim]

Is it possible to add single-pass instancing support that is used by the XR Plug-in?

I've been trying to make a VRChat map with this shader but I get the following error when I compile the PSXLit shader:
undeclared identifier 'unity_StereoEyeIndex' at MYPROJECT/Library/PackageCache/com.unity.render-pipelines.core@14.0.8/ShaderLibrary/UnityInstancing.hlsl(205) (on d3d11)

This only happens when the XR Plug-in is present.

Unity version: 2022.3.6f1
Package version: 2022-lts-support #42

[SyrDim]

After consulting the discord, I was told that what I'm trying to do is basically use two pipelines at the same time, since VRChat uses Unity's Built-in Renderer Pipeline, which is not possible.

So I'll be closing this issue.