Interface and input

XR

44 symbols, imported from @driftengine/xr.

Explained in XR.

Classes

HandSkeleton: One hand's joints, allocated once and written into every frame.

ControllerState: One controller, as much of it as this engine reads.
EnterXrOptions
EyeView: One eye's matrices and where it draws.
LayerSources: What a caller offers. Whichever of the two it has; both is allowed and neither is not.
XrCompatibleContext: A context that can be asked to become XR compatible: what probeXrSupport looks for on the object it is handed.
XrFrame
XrGamepad
XrHand
XrInputSource
XrJointPose: A joint of a hand, keyed by the twenty-five names the specification fixes.
XrLayer
XrRigidTransform: A pose's transform. Only the matrix is read; the decomposed parts are the runtime's convenience.
XrRun
XrSession
XrSupport
XrSystem
XrView: One eye, or the single view an inline session offers.
XrViewerPose
XrViewport: Where in the layer's texture one eye draws.
XrWebGlLayer

aimCameraAtEye: Point a camera at one eye.
bestMode: The best mode this support answer allows, or null when none is worth asking for.
buttonPressed: Whether a named button is pressed, false where the device has no such button.
buttonValue: One named button's analogue value, or zero where the device has no such button.
chooseLayer: Build the layer this session and these sources allow.
controllerFor: The first source for a hand, or null. Two sources may share a handedness and rarely do.
enterXr: Ask for a session and set everything up behind it.
eyeViews: Turn a pose's views into eye views, into reused storage.
jointPosition: A joint's position, read out of the flat storage without allocating.
probeXrSupport: Ask, and try the step that lies.
readController
readControllers: Read every input source a session currently reports.
readHand: Read one hand into a skeleton.

EnterXrResult
Handedness: Which hand, as WebXR reports it. none is a source with no handedness, like a gaze pointer.
HandJoint
LayerBackend
XrButton
XrMode: The session modes this package will ask for.

HAND_JOINTS: Every joint WebXR defines, in the order this engine indexes them.
JOINT_COUNT
JOINT_INDEX: The index of a named joint, so a consumer never counts.
XR_BUTTON: The buttons the WebXR gamepad profile fixes, in its order.