C Specification

The xrDownloadSharedSpatialAnchorAsyncBD function is defined as:

// Provided by XR_BD_spatial_anchor_sharing
XrResult xrDownloadSharedSpatialAnchorAsyncBD(
    XrSenseDataProviderBD                       provider,
    const XrSharedSpatialAnchorDownloadInfoBD*  info,
    XrFutureEXT*                                future);

Parameters

Parameter Descriptions

Description

In order to access the shared spatial anchor, the application first downloads the anchor. To download a shared spatial anchor, call xrDownloadSharedSpatialAnchorAsyncBD.

The spatial anchor will be downloaded to the local device and runtime will then locate it.

This function starts an asynchronous operation and creates a corresponding XrFutureEXT, usable with xrPollFutureEXT and related functions. The return value of this function only indicates whether the parameters were acceptable to schedule the asynchronous operation. The corresponding completion function is xrDownloadSharedSpatialAnchorCompleteBD, usable when a future from this function is in the READY state, with outputs populated by that function in the completion structure XrFutureCompletionEXT.

Valid Usage (Implicit)
Return Codes
On success, this command returns

  • XR_SUCCESS

  • XR_SESSION_LOSS_PENDING

On failure, this command returns

  • XR_ERROR_FUNCTION_UNSUPPORTED

  • XR_ERROR_VALIDATION_FAILURE

  • XR_ERROR_RUNTIME_FAILURE

  • XR_ERROR_HANDLE_INVALID

  • XR_ERROR_INSTANCE_LOST

  • XR_ERROR_SESSION_LOST

  • XR_ERROR_SPATIAL_SENSING_SERVICE_UNAVAILABLE_BD

  • XR_ERROR_FEATURE_UNSUPPORTED

See Also

XR_BD_spatial_anchor_sharing, XrFutureEXT, XrSenseDataProviderBD, XrSharedSpatialAnchorDownloadInfoBD

Document Notes

For more information, see the OpenXR Specification

This page is extracted from the OpenXR Specification. Fixes and changes should be made to the Specification, not directly.

Copyright

Copyright 2014-2025 The Khronos Group Inc.

This work is licensed under a Creative Commons Attribution 4.0 International License.