Represents an XR input source, which is any input mechanism which allows the user to perform
targeted actions in the same virtual space as the viewer. Example XR input sources include,
but are not limited to, handheld controllers, optically tracked hands, and gaze-based input
methods that operate on the viewer's pose. Input mechanisms which are not explicitly associated
with the XR device, such as traditional gamepads, mice, or keyboards SHOULD NOT be considered
XR input sources.
ref: https://immersive-web.github.io/webxr/#xrinputsource-interface
Represents an XR input source, which is any input mechanism which allows the user to perform targeted actions in the same virtual space as the viewer. Example XR input sources include, but are not limited to, handheld controllers, optically tracked hands, and gaze-based input methods that operate on the viewer's pose. Input mechanisms which are not explicitly associated with the XR device, such as traditional gamepads, mice, or keyboards SHOULD NOT be considered XR input sources. ref: https://immersive-web.github.io/webxr/#xrinputsource-interface