XRProjectionLayer: textureArrayLength property

Limited availability

This feature is not Baseline because it does not work in some of the most widely-used browsers.

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

The read-only textureArrayLength property of the XRProjectionLayer interface indicates layer's layer count for array textures when using texture-array as the textureType.

The projection layer's layer count for array textures is determined by the user agent or the device. It is reported in the XRSubImage, which can only be accessed inside the frame loop. If you want to manage your own depth buffers and don't want to wait for first frame after layer creation to determine the required dimensions for those buffers, the textureArrayLength property allows access to layer count for array textures outside the frame loop. Allocation of these buffers can happen directly after layer creation.

Value

A number indicating the number of layers of the color textures when using texture-array as the textureType. Otherwise it will be 1.

Specifications

Specification
WebXR Layers API Level 1
# dom-xrprojectionlayer-texturearraylength

Browser compatibility

Report problems with this compatibility data on GitHub
desktopmobile
Chrome
Edge
Firefox
Opera
Safari
Chrome Android
Firefox for Android
Opera Android
Safari on iOS
Samsung Internet
WebView Android
WebView on iOS
textureArrayLength
Experimental

Legend

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Full support
Full support
No support
No support
Experimental. Expect behavior to change in the future.

See also