Secure context
This feature is available only in secure contexts (HTTPS), in some or all supporting browsers.

The read-only XRWebGLLayer property antialias is a Boolean value which is true if the rendering layer's frame buffer supports antialiasing. Otherwise, this property's value is false. The specific antialiasing technique used is left to the user agent's discretion and cannot be specified by the web site or web app.


let antialiasingSupported = xrWebGLLayer.antialias;


A Boolean value which is true if the WebGL rendering layer's frame buffer is configured to support antialiasing. Otherwise, this property is false.

When the WebXR compositor is enabled, this value corresponds to the value of the antialias property on the object returned by the WebGL context's getContentAttributes() method.

Usage notes

Since this is a read-only property, you can set the antialiasing mode only when initially creating the XRWebGLLayer, by specifying the antialias object in the XRWebGLLayer() constructor's layerInit parameter.


This snippet checks the value of antialias to see if it should perform additional work to attempt to compensate for the lack of antialiasing on the WebGL layer.

let glLayer = xrSession.renderState.baseLayer;
gl.bindFrameBuffer(gl.FRAMEBUFFER, glLayer.framebuffer);

/* .. */

if (!glLayer.antialias) {
  /* compensate for lack of antialiasing */


Specification Status Comment
WebXR Device API
The definition of 'XRWebGLLayer.antialias' in that specification.
Working Draft Initial definition.

Browser compatibility

Update compatibility data on GitHub
ChromeEdgeFirefoxInternet ExplorerOperaSafariAndroid webviewChrome for AndroidFirefox for AndroidOpera for AndroidSafari on iOSSamsung Internet
antialiasChrome Full support 79Edge Full support 79Firefox No support NoIE No support NoOpera No support NoSafari No support NoWebView Android No support NoChrome Android Full support 79Firefox Android No support NoOpera Android No support NoSafari iOS No support NoSamsung Internet Android Full support 11.2


Full support  
Full support
No support  
No support

See also