Meta Horizon updates Quest UI with mixed-reality passthrough compositing

Design · 4 min read

Meta updated Horizon with a compositing API that mixes application UI layers with the headset’s passthrough camera feed. The API supports depth-aware occlusion, lighting estimation, and z-ordering so virtual elements can appear behind or in front of physical objects naturally.

A new developer toolkit includes lighting presets and calibration workflows to help creators match virtual materials to ambient conditions. Meta also baked accessibility options — like high-contrast overlays and adjustable depth separation — to make mixed experiences usable for a broader audience.

This opens opportunities for retailers and productivity apps to create hybrid experiences that anchor virtual controls to real-world surfaces. Designers will need to consider safety and cognitive load, especially where virtual elements overlap critical physical objects like stairs or moving parts.