# HOOPS Communicator 2021 SP2 U1

HOOPS Communicator 2021 SP2 U1 is based on HOOPS Visualize HPS 2021 SP2 (unchanged), HOOPS Exchange 2021 SP2 U1, and HOOPS Publish 2021 SP2 U1.

## Update supported formats

The following format versions are now supported:

- Autodesk Inventor 2022

See a full list on our Supported Formats page.

## Enhancements

IFC spatial relationships can now be accessed in the viewer to navigate the model and query the model in the context of Quantity take-off (QTO). As an example, spatial relationships define connections between elements such as building, story, spaces, walls, windows, etc.

## Fixed bugs list

Issue number | Description
--- | ---
SDHC-18126 | Unable to properly set opacity on a cutting plane.
SDHC-18060 | Initial camera setting results in the same upVector and frontVector.
SDHC-18119 | MouseInputEvent.getButtons() doesn’t work properly in MS IE11.
SDHC-17900 | SSR fails when running as a child of a Windows service.
36700 | No hidden lines in HiddenLine mode of PNG rendering.
SDHC-18067 | PMI in Creo model shown at incorrect size.

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