Unity 6 Support

[francescoStrada]

Hello! I am updating (and porting) an application that should run on Quest 3 and Hololens 2. A key feature I need is anchor persistence. Users can design their environment by placing objects in the desired position of the environment, and in subsequent sessions, these objects should be loaded in the previously decided position.

Anchors' persistence on the Hololens was never a problem as I relied on the ARAnchorStore. The problem now is on the Quest 3, which supports persistence only through the Meta XR packages. Unfortunately, I have had problems configuring a project which featured both the MRTK3 and the Meta XR packages. They seem to conflict on the interaction part and generally, having two packages to manage and possible source of problems does not seem a smart solution.

To this end, the most important features (for example, passthrough) I need from the Quest 3 can be enabled using the AR Foundation package, which (up to now) nicely coexists with MRTK3.

Only one feature is missing, which is Anchors Persistence, which has recently been added to ARFoundation 6.0, but unfortunately, this version relies on Unity 6.0.

So my question is, are there plans on the MRTK side to eventually upgrade to Unity 6.0? If so, is there a roadmap?

Thnak you for your time, cheers!

[AMollis]

Hi @francescoStrada ,

The MRTK3 contributors are currently working on adding XRI3 support (the support needed for Unity 6). You can follow along with progress by track the following issues:

• [XRI3] Update MRTK3 to support XRI 3.0 #645
• [XRI3] [RELEASE] [PREVIEW] August public preview release of XRI3 support #778

If you desire, you can start testing the changes by consuming MRTK3 from this branch

• https://github.com/MixedRealityToolkit/MixedRealityToolkit-Unity/tree/feature/XRI3