Definition
WebXR Layers API Level 1 defines XREquirectLayer
[Exposed=Window] interface XREquirectLayer : XRCompositionLayer {
attribute XRSpace space;
attribute XRRigidTransform transform;
attribute float radius;
attribute float centralHorizontalAngle;
attribute float upperVerticalAngle;
attribute float lowerVerticalAngle;
// Events
attribute EventHandler onredraw;
};