C Specification

The xrTriangleMeshBeginUpdateFB function is defined as:

XrResult xrTriangleMeshBeginUpdateFB(
    XrTriangleMeshFB                            mesh);

Parameters

Parameter Descriptions

Description

Begins updating the mesh buffer data. The application must call this function before it makes any modifications to the buffers retrieved by xrTriangleMeshGetVertexBufferFB and xrTriangleMeshGetIndexBufferFB. If only the vertex buffer needs to be updated, xrTriangleMeshBeginVertexBufferUpdateFB may be used instead. To commit the modifications, the application must call xrTriangleMeshEndUpdateFB. Runtime must return XR_ERROR_VALIDATION_FAILURE if the mesh is immutable.

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_FEATURE_UNSUPPORTED

See Also

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.

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