Decide on Interaction System to use

[Manuel-Ko]

Unity recently released their new XR Interaction Toolkit as a preview package which might be a replacement for the SteamVR Interactions with more crossplatform capabilities. The goal of this issue is to decide whether Unity's Toolkit is meeting the rquirements for developing the Quickaccess.

[Manuel-Ko]

Current capabilities of the Interaction Toolkit are:

• grabing and throwing objects (direct or indirect by ray)
• interacting wiht Unity 2D UI Elements
• teleportation and snap turning

It's architecture is based on Interactables, Interactors and the Interaction Manager:

• interactors define how interactables are hovered, selected and activated
• Interactables define what happens when an interactor hovers, selects or activates them
• the interactionmanager defines which interactors can interact with what interactables (instances)

See Also:

Unity Forum XRIT Docs

Pros:

• should work on steamVR Headsets, Oculus Quest, Hololens, Magic leap, ...

Cons:

• Core functionalities like hovering are based on strict assumptions
  • e.g. each Interactable has a collider (-> does not necessary apply to quickaccess slots)
• currently very limited features compared to other Interaction Toolkits

Conclusion:

For prototyping on a single platform the XRIT is not feasable yet due to it's limited feature set and somewhat limiting assumptions on how interactions should work. I will look at steamVR instead or start implementing my own.

[Manuel-Ko]

Unity 2020.1 and onwards do not support the steamVR Plugin with Interactionsystem and skeletal input. ☹️

[LexQzim]

How is that possible? What is the alternativ when u are Not able to use steamVR?