# HOOPS Communicator 2021 SP2 U2

HOOPS Communicator 2021 SP2 U2 is based on HOOPS Visualize HPS 2021 SP2 (unchanged), HOOPS Exchange 2021 SP2 U2, and HOOPS Publish 2021 SP2 U2.

## Update supported formats

The following format versions are now supported:

- ACIS 2021

See a full list on our Supported Formats page.

## Enhancements

Colors and emissive factors defined in a linear color space for PBR materials are now correctly interpreted.

New operator Operator.CameraWindowZoomOperator provides zoom to rectangular window area capability.

## Functional changes

Can now remove individual animation players by index or reference using removePlayerByIndex() or removePlayer().

Animations can now be accessed directly through a player using Animation.Player.

The following methods have been removed:

- `Animation.KeyframeBuffer.appendScalarKeyframe()`
- `Animation.KeyframeBuffer.appendQuatKeyframe()`
- `Animation.KeyframeBuffer.appendVec3Keyframe()`

The following methods no longer require an index. You can now specify by time and the ordering will be managed internally.

- Animation.KeyframeBuffer.insertScalarKeyframe()
- Animation.KeyframeBuffer.insertQuatKeyframe()
- Animation.KeyframeBuffer.insertVec3Keyframe()

## Fixed bugs list

Issue number | Description
--- | ---
SDHC-18218 | When importing a DWG file in 3D, points are displayed in too large of a size.
SDHC-18175 | Prevent internal error message from reaching the developer console: `Error: Cannot pick from outside the canvas area`.
SDHC-18113 | `getNodesEffectiveLineColor` throws an uncaught promise rejection in SCS.
SDHP-2479 | Context menu transparency toggle behaves incorrectly if spacity has been changed by other means.
SDHC-18199 | Transformation matrix affects selection results.
SDHC-18123 | Layers tab of a converted DWG does not show all layers.

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