web api instance property
XRWebGLLayer: antialias property
Limited availabilitySecure context
The read-only XRWebGLLayer property
antialias is a Boolean value which is true
if the rendering layer’s frame buffer supports anti-aliasing. Otherwise, this
property’s value is false. The specific anti-aliasing technique used is left
to the user agent’s discretion and cannot be specified by
the website or web app.
Value
A Boolean value which is true if the WebGL rendering layer’s frame buffer
is configured to support anti-aliasing. 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 anti-aliasing mode only when
initially creating the XRWebGLLayer, by specifying the antialias
property in the XRWebGLLayer()
constructor’s options configuration object.
Examples
This snippet checks the value of antialias to see if it should perform
additional work to attempt to compensate for the lack of anti-aliasing on the WebGL
layer.
let glLayer = xrSession.renderState.baseLayer;
gl.bindFrameBuffer(gl.FRAMEBUFFER, glLayer.framebuffer);
/* .. */
if (!glLayer.antialias) {
/* compensate for lack of anti-aliasing */
}