XRRay: matrix property
Experimental: This is an experimental technology
Check the Browser compatibility table carefully before using this in production.
Secure context: This feature is available only in secure contexts (HTTPS), in some or all supporting browsers.
The read-only matrix
property of the XRRay
interface is a transform that can be used to position objects along the XRRay
. This is a 4 by 4 matrix given as a 16 element Float32Array
in column major order.
The transform from a ray originates at [0, 0, 0] and extends down the negative z-axis to the ray described by the XRRay
's origin
and direction
.
Value
A 16 element Float32Array
object representing a 4 by 4 matrix in column major order.
Examples
Using the matrix
property
The matrix
property can be used to position graphical representations of the ray when rendering.
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);
// Render the ray using the `ray.matrix` transform
Specifications
Specification |
---|
WebXR Hit Test Module # dom-xrray-matrix |
Browser compatibility
BCD tables only load in the browser