The read-only origin property of the XRRay interface is a DOMPointReadOnly representing the 3-dimensional point in space that the ray originates from, in meters.

A DOMPointReadOnly object.

The origin property contains the 3-dimensional point in space that the ray originates from, in meters.

let origin = { x: 10.0, y: 10.0, z: 10.0, w: 1.0 };
let direction = { x: 10.0, y: 0.0, z: 0.0, w: 0.0 };
let ray = new XRRay(origin, direction);

ray.origin;
// returns DOMPointReadOnly {x : 10.0, y : 10.0, z : 10.0, w : 1.0}

• DOMPointReadOnly