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XRCompositionLayer: layout property

Experimental: This is an experimental technology
Check the Browser compatibility table carefully before using this in production.

The read-only layout property of the XRCompositionLayer interface is the layout type of the layer.

To specify the layout type of a layer, use one of the layer creation methods and their layout option:

Value

A string. Possible values:

default

The layer accommodates all views of the session. It is recommended to use the texture-array texture type for default layouts.

mono

A single XRSubImage is allocated and presented to both eyes.

stereo

The user agent decides how it allocates the XRSubImage (one or two) and the layout (top/bottom or left/right). It is recommended to use the texture-array texture type for stereo layouts.

stereo-left-right

A single XRSubImage is allocated. Left eye gets the left area of the texture, right eye the right. This layout is designed to minimize draw calls for content that is already in stereo (for example stereo videos or images).

stereo-top-bottom

A single XRSubImage is allocated. Left eye gets the top area of the texture, right eye the bottom. This layout is designed to minimize draw calls for content that is already in stereo (for example stereo videos or images).

Examples

Setting and getting a layer's layout

To specify a layer's layout, use a layer creation method (like XRWebGLBinding.createQuadLayer()) and its layout option. To retrieve the type of layer layout, use the layout property:

js

const layer = xrGlBinding.createQuadLayer({
  pixelWidth: 1024,
  pixelHeight: 768,
  layout: "stereo",
});

layer.layout; // "stereo"

Specifications

Browser compatibility

Desktop Mobile
Chrome Edge Firefox Internet Explorer Opera Safari WebView Android Chrome Android Firefox for Android Opera Android Safari on IOS Samsung Internet
layout No No No No No No No No No No No No

See also

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Licensed under the Creative Commons Attribution-ShareAlike License v2.5 or later.
https://developer.mozilla.org/en-US/docs/Web/API/XRCompositionLayer/layout