nodeStates | 使用 XRNodeState 对象填充的列表。 |
描述所有当前连接的 XR 节点并提供每个节点的可用跟踪状态。
并非所有 XR 平台都提供完整的跟踪数据。使用 XR.XRNodeState.positionAvailable、XR.XRNodeState.rotationAvailable 等属性可确定特定数据是否可供跟踪节点使用。此外,此方法还将先清除列表中传递的所有成员,再填充该列表。
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