<br />


Applicable XR devices  
This guidance helps you build experiences for these types of XR devices.  
[Learn about XR device types →](https://developer.android.com/develop/xr/devices)  
![](https://developer.android.com/static/images/develop/xr/xr-headsets-icon.svg) XR Headsets [](https://developer.android.com/develop/xr/devices#xr-headsets)  
![](https://developer.android.com/static/images/develop/xr/xr-glasses-icon.svg) Wired XR Glasses [](https://developer.android.com/develop/xr/devices#xr-glasses)  
[Learn about XR device types →](https://developer.android.com/develop/xr/devices)

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![The OpenXR text logo](https://developer.android.com/static/images/develop/xr/openxr.svg)

Android XR supports apps built with [OpenXR](https://www.khronos.org/openxr/) through its support
for the [OpenXR 1.1 specification and select vendor extensions](https://registry.khronos.org/OpenXR/specs/1.1/html/xrspec.html).
OpenXR is an open standard that lets you create immersive and interactive
experiences using a common set of APIs across a wide range of XR devices.

## Features

Android XR supports features that allow you to build apps that take full
advantage of the unique capabilities of XR devices, using OpenXR. These features
include the following.

Trackables
:   Supports *plane detection* , which is the ability to identify and
    track flat surfaces within the environment, enabling the placement of
    virtual objects in relation to the real world and *Anchors* which are
    virtual points of reference that can be attached to real-world objects or
    locations, so that virtual content remains accurately positioned and
    oriented even as the user moves around.

Raycasting
:   A technique used to determine the intersection point between a
    virtual ray and objects in the scene, facilitating interactions such as
    selecting and manipulating virtual elements.

Anchor persistence
:   The capability to save and restore anchors across multiple
    sessions, allowing for persistent and consistent placement of virtual
    content within the environment.

Object tracking
:   The ability to track mouse, keyboard and other objects in the
    real-world.

QR Code tracking
:   The ability to track QR Codes in the physical environment and decode
    their data.

Depth textures
:   The generation of depth maps that provide information about the
    distance between the camera and objects in the scene, enabling more
    realistic occlusion and interaction effects.

Passthrough
:   The ability to blend real-world camera footage with virtual
    content, creating a mixed reality experience that seamlessly combines the
    physical and digital worlds.

Scene meshing
:   The ability to acquire a 3D mesh of the environment, which can be
    used for physics, occlusion, and other world-aware interactions.

Composition layer passthrough
:   Allows for a polygon passthrough composition
    layer cutout, can be used for bringing real world objects into a scene.

Face tracking
:   The ability to track the features of the user's face, enabling
    the creation of more realistic and expressive avatars and virtual
    characters.

Eye tracking
:   Provides position and orientation of the user's eye, which is
    designed to make eye pose for avatars more realistic.

Hand tracking
:   The ability to track the position and movement of the user's hands.

Hand mesh
:   Provides an accurate representation of the user's hands as a low
    poly mesh. Optimized for platform-to-application delivery to make sure you
    get the best performance possible. This is an alternative to other
    extensions which use a bind pose and blend weights.

Light estimation
:   Used for lighting models to match the user's real world lighting conditions.

## Supported input devices

Android XR also supports the following input devices.

Hand Interaction
:   The recognition of specific hand gestures, such as
    pinching, swiping, and pointing, enabling the users to interact with virtual
    objects using gestures and hand movements.

Eye Gaze Interaction
:   The ability to track the user's eye movements,
    allowing them to select and interact with virtual objects using their gaze.

6DoF Motion Controllers
:   The ability to track the controllers position and
    movement along with Dpad and button bindings for triggering actions, or
    hover events within the app.

Mouse Interaction
:   The ability for users to interact with objects through a
    mouse pointer in 3D space

## Supported performance features

Android XR supports the following performance-related features.

Eye-tracked foveation
:   Allows an app to render higher resolution content only
    at the eyes focal point.

Space warp
:   Uses velocity vectors and depth texture information to
    generate tween frames which effectively boosts the frame rate required to
    keep your users immersed in your experiences

Performance metrics
:   Provides Android XR performance metrics at runtime of
    the current XR device, compositor, and XR app. This includes CPU
    frametime, GPU frame time, GPU utilization, CPU frequency, frames per second
    and [more](https://developer.android.com/develop/xr/openxr/extensions/XR_ANDROID_performance_metrics).

See the [OpenXR Feature Overview](https://developer.android.com/develop/xr/openxr/extensions) for a full list of supported features and
extensions.

## Supported engines

The following engines are supported for OpenXR development with Android XR.

### Unity

Android XR's Unity support, built on top of OpenXR, lets developers create
experiences using Unity 6. Learn more about building XR apps with Unity in the
[Unity overview](https://developer.android.com/develop/xr/unity).
| **Note:** The [Android XR emulator](https://developer.android.com/develop/xr/jetpack-xr-sdk/run/emulator/xr-headsets-glasses) is not supported for Unity or OpenXR apps.

*** ** * ** ***

OpenXR™ and the OpenXR logo are trademarks owned
by The Khronos Group Inc. and are registered as a trademark in China,
the European Union, Japan and the United Kingdom.