C Specification

The xrSetMarkerTrackingPredictionVARJO function is defined as:

// Provided by XR_VARJO_marker_tracking
XrResult xrSetMarkerTrackingPredictionVARJO(
    XrSession                                   session,
    uint64_t                                    markerId,
    XrBool32                                    enable);

Parameters

Parameter Descriptions

  • session is an XrSession handle previously created with xrCreateSession.

  • markerId is the unique identifier of the marker which should be tracked with prediction.

  • enable is whether to enable the prediction feature.

Description

The xrSetMarkerTrackingPredictionVARJO function enables or disables the prediction feature for a specified marker. By default, markers are created with disabled prediction. This works well for markers that are supposed to be stationary. The prediction can be used to improve tracking of movable markers. The runtime must return XR_ERROR_MARKER_ID_INVALID_VARJO if the supplied markerId is invalid.

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_RUNTIME_FAILURE

  • XR_ERROR_HANDLE_INVALID

  • XR_ERROR_INSTANCE_LOST

  • XR_ERROR_SESSION_LOST

  • XR_ERROR_MARKER_ID_INVALID_VARJO

  • XR_ERROR_FEATURE_UNSUPPORTED

See Also

XR_VARJO_marker_tracking, XrBool32, XrSession

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 2014-2024, The Khronos Group Inc.

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