Stepan Hrbek 206839d4f2 Allow empty slots in mTextureCoords (#5636) ...

* Allow empty slots in aiMesh::mTextureCoords.
1.Explicitly say in documentation that empty slots are allowed (it was unclear).
2.Change GetNumUVChannels() implementation to allow empty slots.
3.Revert fraction of 2da2835b29 where empty slots are detected and error logged.

* Fix #5632 by reverting fraction of d6aacefa1e where Collada texcoords are renumbered to avoid empty slots.

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Co-authored-by: Kim Kulling <kimkulling@users.noreply.github.com>

2024-07-10 09:01:53 +02:00

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