Quick Start Guide to Unity 6 and XR Interaction Toolkit 3.0

Introduction

• Presenter: FistfulShrimp
• Focus on VR game development using Unity and the XR Interaction Toolkit.
• Aim to cover key topics for both newbies and veterans to streamline VR development.

Setting Up Unity 6

1. Install Unity Hub:

   • Download from the provided link.
   • Manage Unity versions and projects from Unity Hub.

2. Create Unity Account:

   • Required after installing Unity Hub.

3. Install Unity 6:

   • Go to "Installs" > "Install Editor".
   • Choose the latest version; prefer Long Term Support (LTS) for stability.
   • Install Android build support and tools for Quest development.

4. Create a New Project:

   • Select the Unity version, choose a template (consider VR template), and name your project (e.g., "Make VR Game").
   • Familiarize with the Unity interface layout (Hierarchy, Inspector, Project, Console, Game, Scene).

Installing Required Packages

1. Install XR Plugin Management:

   • Go to Edit > Project Settings > XR Plugin Management, then install.

2. Choose Plugin Provider:

   • Select OpenXR for broad headset compatibility.
   • Set up interaction profiles for Oculus and other controllers if needed.

3. Install XR Interaction Toolkit:

   • Access Window > Package Manager > Unity Registry, find XR Interaction Toolkit 3.0.4, and install.
   • Import starter assets for prefabs and resources to speed up development.

4. Project Validation:

   • Fix any validation errors that arise after installing starter assets.

Exploring Demo Scene

• Open the demo scene provided by starter assets.
• Key components include:
  • XR Origin: Main player tracking system with camera and controllers.
  • Locomotion System: Manage player movement in VR.
  • Interactables: Objects the player can grab, poke, or interact with.

Creating Your First VR Scene

1. Set Up the Scene:

   • Create a new empty scene; add XR Origin, Interaction Manager, and Event System (with XR UI Input Module).
   • Add a plane to represent the ground.

2. Testing the Scene:

   • Use MetaQuest Link for testing; connect via AirLink or USB.
   • Set up developer mode for headset builds.

Locomotion in VR

• New locomotion system manages how players move:
  • Providers: Snap Turn, Continuous Turn, Dynamic Move, and Teleport Provider.
  • Tunneling Vignette: Helps reduce motion sickness by narrowing vision during movement.
  • Teleportation: Implement teleportation areas and anchors for moving players smoothly.

Interaction System

1. Key Components:

   • Interactors: Objects on controllers for grabbing or poking.
   • Interactables: Objects that can be interacted with (e.g., XR Grab Interactable).
   • Interaction Manager: Manages interactions between interactors and interactables.

2. Grabbable Objects Setup:

   • Attach a Rigidbody and XR Grab Interactable to the object.
   • Configure movement type (Kinematic, Instantaneous, Velocity Tracking).

3. UI Interaction:

   • Ensure UI components are in World Space.
   • Set interaction layers appropriately for UI elements.

Implementing Button Interaction

1. Creating a Button:

   • Use XR Simple Interactable and Poke Filter to build functional buttons.
   • Set up offsets and colliders for proper interaction.

2. Testing the Button:

   • Verify button reacts to poke interactions, color changes when pressed.
   • Adjust visuals for clarity during interaction.

Conclusion

• Encourage experimentation with the toolkit.
• Mention the importance of practice in mastering VR development.
• Promote the creator's Patreon for exclusive content and models.