Interface: WorldHit

Where a ray met the world.

Properties

Property	Modifier	Type	Description	Defined in
`distance`	`readonly`	`number` \| `null`	Metres from where the ray started, or `null` when the host will not say. This is the one field here whose availability differs, and it is worth knowing why: it needs the ray's ORIGIN as well as its hit, and not every host exposes one. Raw WebXR does - the hit-test source is bound to a space, and that space can be posed - so the three.js adapter fills it. IWSDK moves a target entity to the hit and keeps the ray to itself, so it reports `null` there rather than guessing from the head, which would be a different number wearing the same name. An app that needs it everywhere can compute its own from a pose it already has; an app that just wants "ignore anything past three metres" should check for `null` and treat it as "unknown", not as zero.	packages/webxr-environment/src/world-sensing.ts:161
`pose`	`readonly`	`WorldPose`	-	packages/webxr-environment/src/world-sensing.ts:145
`sourceId`	`readonly`	`string`	The `id` of the `HitTestRequest` this answers.	packages/webxr-environment/src/world-sensing.ts:144