Meta Quest Passthrough API | How to make virtual and passthrough windows

  • 20 January 2024
  • 31 January 2024
  • 3 min read

Hi XR Developers! 🚀 Today’s tutorial is all about exploring the capabilities of Meta’s Passthrough API. This innovative tool is a game-changer for blending virtual and real worlds in Unity projects. Whether you’re an experienced developer or just starting out, this guide will help you unlock the full potential of Passthrough in your XR applications.

🛠️ Setting Up Passthrough: A Step-by-Step Guide

To kick things off, activate Passthrough in your headset: navigate to Settings > Physical Space > Passthrough and switch it on. In Unity, ensure you have the Meta XR SDK installed. The cornerstone of this setup is the OVR Camera Rig with the OVR Manager Component. Find it in the project packages, enable Passthrough under “Quest Features” and “Insight Passthrough”, and add an “OVR Passthrough Layer” to your scene. You’re now ready to dive into the passthrough mode!

⚡ Quick and Easy Setup with Building Blocks

Meta’s Building Blocks streamline the setup process. Clear your scene, open the Building Blocks tab, and select the Passthrough building block for automatic configuration of the OVR Camera Rig, OVR Manager, and essential project settings.

🎨 Customizing Your Passthrough Experience

The OVR Passthrough Layer is your canvas for creativity. Choose between Reconstructed and User-Defined surface projections, adjust placement settings (overlay or underlay), and prioritize layers with Composition Depth. Tweak the Opacity for perfect visibility, use Edge Rendering for enhanced edges, and fully customize the camera’s appearance with contrast, brightness, saturation, and color settings.

🪟 Crafting Passthrough and Virtual Windows

Create passthrough windows with a single layer and a user-defined quad. Add interactivity with a rigid-body, grabbable, and hand grab interactable. For virtual windows, explore the “Surface Projected Passthrough” and “Passthrough Window” building blocks, each offering unique integration methods for virtual elements in the real world.

🌐 Conclusion: The Future of XR Development with Passthrough API

Meta’s Passthrough API is revolutionizing XR development, offering unprecedented ways to merge virtual and real environments. From customizing passthrough modes to creating interactive windows, these tools empower developers to craft immersive and engaging XR experiences.

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