Unreal Phanto sample

Updated: May 11, 2026

Overview

The Unreal Phanto sample is a mixed reality reference app with four scenes (Lobby, Tutorial, Game, Haptics). It demonstrates scene mesh access with a custom GlobalMesh collision profile, dynamic NavMesh with initial lock and release pattern, custom nav links for jumping, and MetaXRHaptics for runtime modulation. BP_Phanto uses a behavior tree for air navigation with scene mesh overlap.

View the sample source code on GitHub⁠.

What you will learn

Scene mesh access and collision configuration

Dynamic NavMesh generation with lock/release patterns

Custom navigation links for jumping behaviors

MetaXRHaptics runtime modulation

Behavior tree-driven AI navigation in mixed reality

Requirements

Quest 3 or Quest 3S (full functionality)

Quest 2 (Scene API only)

UE 5.3 or Oculus fork of Unreal Engine 5.6

Get started

Clone the repository.

Open the project in UE 5.3 or the Oculus fork of Unreal Engine 5.6.

Ensure your Quest device has completed Room Setup.

Deploy and launch on device to enter the Lobby scene.

Explore the sample

File / Scene	What it demonstrates	Key concepts
Lobby	Entry point and scene setup	Scene API initialization
Tutorial	Guided introduction	Interaction patterns and onboarding
Game	Core gameplay loop	BP_Phanto behavior tree, scene mesh overlap
Haptics	Haptic feedback demo	MetaXRHaptics runtime modulation
GlobalMesh collision profile	Scene mesh collision	Custom collision channel configuration
NavMesh setup	Dynamic navigation	Initial lock + release pattern, custom nav links

Runtime behavior

The app starts in the Lobby scene and guides users through a Tutorial before entering the Game scene. BP_Phanto navigates through the air using a behavior tree that accounts for scene mesh geometry. The NavMesh is initially locked during scene mesh loading, then released once the environment is fully captured. Custom nav links enable jumping between disconnected surfaces.

Key concepts

Scene mesh with GlobalMesh collision

The scene mesh is loaded with a custom GlobalMesh collision profile that allows gameplay systems to query physical space boundaries for placement and occlusion.