Re: Image variants or sets and addressing fragments (fMAP, fcTL, fdAT, aPAL)

GLENN PEHRSON <[email protected]>:
> 
> Instead of enhancing APNG, I'd consider enhancing the mPNG proposal
> by adding a name field to the tile structure.

`mpNG` would be an alternative solution to the Sprite Map use case and probably better than `fmAP`, which is the part of my proposal that is the least thought through. I only included `fmAP` for sprite maps for completeness. Sprite maps already become more usable with Media Fragments, but named slices/cells would be really nice. Alas, MPNG would be another animation format when all that was needed were addressable parts of a still picture. I omitted `acTL` from APNG on purpose, because without it, `fcTL` and `fdAT` do not constitute animation data and thus might be accepatble for the majority of PNG Group members.

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