The read-only XRRigidTransform
property
orientation
is a DOMPointReadOnly
containing a normalized quaternion (also called a unit
quaternion or versor)
specifying the rotational component of the transform represented by the object.
If you specify a quaternion whose length is not exactly 1.0 meters, it will be
normalized for you.
Syntax
let orientation = xrRigidTransform.orientation;
Value
A DOMPointReadOnly
object which contains a unit quaternion providing the
orientation component of the transform. As a unit quaternion, the length of the returned
quaternion is always 1.0 meters.
Examples
To create a reference space which is oriented to look straight up, positioned 2 meters off of ground level:
xrReferenceSpace = refSpace.getOffsetReferenceSpace(
new XRRigidTransform({y: -2}, {x: 0.0, y: 1.0, z: 0.0, w: 1.0});
);
The unit quaternion specified here is [0.0, 1.0, 0.0, 1.0] to indicate that the object should be facing directly along the y axis.
Specifications
Specification | Status | Comment |
---|---|---|
WebXR Device API The definition of 'XRRigidTransform.orientation' in that specification. |
Working Draft | Initial definition. |
Browser compatibility
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