Just buy HP Windows Mixed Reality Headset and download all those xp vr and others stuff, but I can’t test in VR. I add all options, scripts (I think) I press play and just see flat window with Unity inside Windows Mixed Reality. But I see on the screen the headset is moving, Unity see it, I can turn a head, but nothing else. So what exactly I should do to make things right?
(Unity 2020 alpha - it’s written Windows Mixed Reality package is obsolete, so I delete it)
I’m not sure what all you mean by download all the XP VR stuff. Everything you need to get a simple VR experience is in Unity as shipped (or auto installed for you when you enable XR). You should follow the guide here: Unity - Manual: VR development in Unity
If that doesn’t help, can you strip your current project (or create a new) to a simple test project that demonstrates your issue? If so I would be happy to take a look at it.