# \#alembic

**URL:** https://forum.aousd.org/tag/alembic/14.md

[Latest](https://forum.aousd.org/latest.md) · [Categories](https://forum.aousd.org/categories.md) · [Tags](https://forum.aousd.org/tags.md)

---

## [Discussion: Deprecation of HDF5 support in UsdAlembic plugin](https://forum.aousd.org/t/discussion-deprecation-of-hdf5-support-in-usdalembic-plugin/1688)

<div class="topic-metadata">

**Author:** [@nporcino](https://forum.aousd.org/u/nporcino)\
**Replies:** 4\
**Last updated:** [June 3, 2025, 6:19pm UTC](https://forum.aousd.org/t/discussion-deprecation-of-hdf5-support-in-usdalembic-plugin/1688 "2025-06-03T18:19:26Z")

</div>

Dhruv has mentioned in the ASWF vfx reference platform slack channel, that the Alembic HDF5 backend has been dropped from macOS distribution for some years, and that maintenance, security, and performance concerns, promp…

---

## [usdAbc multiple Alembic Xform Ops](https://forum.aousd.org/t/usdabc-multiple-alembic-xform-ops/2024)

<div class="topic-metadata">

**Author:** [@radon199](https://forum.aousd.org/u/radon199)\
**Replies:** 2\
**Last updated:** [November 26, 2024, 3:51pm UTC](https://forum.aousd.org/t/usdabc-multiple-alembic-xform-ops/2024 "2024-11-26T15:51:10Z")

</div>

Hi, We were experiencing some odd subframe interpolation of transforms with Alembic files loaded into USD, the result being that objects with high rotation are scaling down on subframes. In Maya and Houdini Obj context…