XRVisibilityMaskChangeEvent: eye property

Value

An emumerated value indicating which eye the mask applies to, which can be one of:

left: The XRView represents the point-of-view of the viewer's left eye.
right: The view represents the viewer's right eye.
none: The XRView describes a monoscopic view, or the view otherwise doesn't represent a particular eye's point-of-view.

Examples

This example indicates how you might check the eye value when the visibilitymaskchange event fires and then render a suitable display update depending on the result.

js

xrSession.addEventListener("visibilitymaskchange", (e) => {
  if (e.eye === "left") {
    // Render for left eye view
  } else if (e.eye === "right") {
    // Render for right eye view
  } else {
    // Render for neutral view
  }
});