This is a collection of world model kits for building immersive world model experiences across WebXR, Unity and Unreal Engine.

1. WorldLabs WebXR Kit
2. WorldLabs Unity Kit
3. WorldLabs Unreal Kit
4. Acknowledgements & Credits
5. License
6. Contact

🎯 A WebXR template project for building immersive world model experiences with Gaussian splats, spatial UI, and locomotion - runnable in any WebXR-capable browser.

• Renders local or remote .spz/.ply Gaussian splats using SparkJS 2.0 with GPU-accelerated fly-in/fly-out animations
• Includes Level-of-Detail (LoD) support - adjusts splat quality by distance to maintain stable framerates on headsets
• Built on IWSDK for locomotion, grabbing, spatial UI, and XR session management

⚠️ Setup Notes

• Prerequisites: Node ≥ 20.19.0 and a WebXR-capable browser
• Splat Files: Keep large splat files outside the repo and load via URL

🎯 A Unity package for generating and rendering 3D Gaussian Splatting scenes using the WorldLabs API with a built-in runtime VR world browser.

• Generate 3D scenes from text prompts via the WorldLabs API
• Real-time Gaussian Splat rendering with runtime loading and splat layer support
• In-game VR/screen-space world browser and creator (WorldBrowserController)
• Editor importer for browsing and importing worlds as project assets

⚠️ Setup Notes

• Unity Version: 6000.2.10f1 recommended
• Render Pipeline: URP required
• Graphics API: D3D11 is NOT supported - use D3D12/Vulkan (Windows), Metal (Mac), or Vulkan (Android/Quest)
• API Key: Obtain from WorldLabs and place in a .env file at the project root
• Render Graph: Enable "Compatibility Mode (Render Graph disabled)" in Project Settings > Graphics
• XR: Set OpenXR Render Mode to Multi-pass for VR builds
• Meta Quest: Adding a Camera Rig from "Meta Building Blocks" may force D3D11 - switch back to Vulkan manually

🎯 An Unreal Engine 5.5 template project for rendering Gaussian splats using the XVERSE XV3DGS plugin.

• Import .ply splat files directly via the XV3DGS editor tab - produces a converted splat and a Blueprint ready to place in your level
• Includes a training tool to convert .mp4 video into .ply splat files (requires CUDA 11+)

⚠️ Setup Notes

• Engine Version: Unreal Engine 5.5 only - XV3DGS is not compatible with later versions
• Plugin: Included under Plugins/XV3dGS, enabled automatically
• Hardware Ray Tracking: Make sure it is disables in project setting, due to incompatibility with XV3DGS

• Check out our Master SensAI Kits for a full collection of context-aware AI tools for Unity and Meta XR, ready to power your XR and AI projects
• Join the Worlds in Action Hack and connect with a community of creators and innovators.
• Visit our our SensAI Knowledge Hub for curated learning use cases and inspiration across AI, XR, and robotics.
• Thanks to Nigel Hartman for the WorldLabs Unity package - a great source of AI & XR insights.
• Big thanks to Johannes Tscharn for the Unreal and WebXR world model templates - check out his work for more cool XR projects.

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✉️ Have questions, suggestions, or feedback? We’d love to hear from you! Reach out to us at hello@sensaihack.com