1.0.0 • Public • Published


    An image split in half. Left side has: a green floor, a blue cube, and a red sphere. Right side has: a green floor, a red sphere, and a yellow cylinder.

    This is an A-Frame component for controlling the layers of an entity.

    Why is this useful? In VR, sometimes you want to show things to one eye but not the other (stereo panoramas for instance). This can be done by restricting an Object3D to either layer 1 (visible to the left eye) or layer 2 (visible to the right eye).


    Property Description Default Value
    layers An array of layers the entity should have enabled e.g. "0, 1" "0"

    Note: omitting layer 0 will likely cause your object to disappear (unless you enable additional layers on the camera).



    Install and use by directly including the browser files:

    <!DOCTYPE html>
    <html lang="en">
        <meta charset="UTF-8" />
        <meta name="viewport" content="width=device-width, initial-scale=1" />
        <title>My A-Frame Scene</title>
        <script src=""></script> 
        <!-- TODO: Add jsdelivr link -->
        <a-scene renderer="antialias: true">
          <a-entity id="camera" camera position="0 1.6 0"> </a-entity>
          <!-- Restrict the box to layer 1 -->
            position="-1 0.5 -3"
            rotation="0 45 0"
          <a-sphere position="0 1.25 -5" radius="1.25" color="#EF2D5E"></a-sphere>
          <!-- Restrict the cylinder to layer 2 -->
            position="1 0.75 -3"
            position="0 0 -4"
            rotation="-90 0 0"
          <a-sky color="#ECECEC"></a-sky>

    This code generated the image shown at the top of this README. In VR, the blue box is visible to the left eye only while the yellow cylinder is visible to the right eye only. Outside of VR, neither the box or cylinder are visible because the camera defaults to layer 0 only.


    Alternatively, install via npm:

    npm install aframe-layers-component

    Then register and use.


    local development


    • node.js and npm
    • OpenSSL (if HTTPS is needed for local dev)


    1. Clone this repo
    2. npm install


    npm run dev
    # if https is needed 
    npm run dev-ssl

    This will start a local dev server.

    new releases

    Once new features/bug fixes are merged into master.

    1. Increment package version in package.json (semver is recommended).
    2. npm run dist
    3. Commit the newly generated ./dist files.
    4. npm publish
    5. Update jsdelivr CDN links in this README to point to new version.
    6. Draft a new release on GitHub, add a changelog describing what has changed since the last release.


    This component was originally based on Óscar Marín Miró's stereocam component.


    In three.js, Object3D have a layers property that can be used to control visibility. object must share a layer with a camera to be visible when that camera's view is renderered. - three.js docs

    By default all Object3Ds are a member of layer 0, so everything starts out visible. In VR mode, each eye is represented by a separate camera and given access to an additional layer:

    • the left eye can see layers 0 and 1
    • the right eye can see layers 0 and 2

    This makes it easy to do things like show meshes to each eye independently--a necessary trick to view stereo panoramas.


    npm i aframe-layers-component

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    • bryik