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Mention that USDZ files are Zip32 only
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It is a common point of confusion that USDZ files are Zip64 compliant.

In the AOUSD specification, I'll be mentioning that we only support Zip32 and I'd like to do the same for the USDZ spec doc as well.

See PixarAnimationStudios#3424 for more information
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dgovil authored Nov 14, 2024
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5 changes: 4 additions & 1 deletion docs/spec_usdz.rst
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Expand Up @@ -113,6 +113,9 @@ the ability to relax this constraint in the future, but consider it unlikely.
aggregate an arbitrary composition's worth of usd files into a single file,
without removing any composition features from the scene.

Additionally, USDZ files must be Zip32 documents. OpenUSD does not support Zip64.
As such, the total file size of a USDZ must be under 4GB.

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Expand Down Expand Up @@ -418,4 +421,4 @@ Version 1.3 - Current Head
From version 1.2:

* :ref:`Adds AV1 Image (AVIF) file support <spec_usdz_file_types>`.
AVIF is now a supported file type for images/textures.
AVIF is now a supported file type for images/textures.

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