| pointsOut | 包含点云中所有点的 Vector3 列表。 |
检索点云的点。
点云表示物理环境中设备用于从里到外跟踪的位置。使用此方法可获取系统当前跟踪的点云中的所有点（也称为“特征点”）的列表。
点列表是 XRDepthSubsystem.GetPointCloudConfidence 提供的值的并行数组。
现有数据会替换为当前点云的点的列表。为了避免过多的堆分配，开发者可以在每次调用时重复使用该列表。只有当列表的容量不足时才会重新分配。
如果 pointsOut 为 null，此方法会抛出 /ArgumentNullException/。
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