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Comment by nuclearsugar | Hacker News Reader

Very curious to see if this codec gets implemented into After Effects. I've been rendering out of Maya to a PNG sequence for many years since it's lossless and includes an alpha channel. But the decompression times leave me wishing for TIFF, TARGA, EXR, or such... But the cumulative file size difference is dramatic. And that matters when I'm rendering for example 10 tests, each with 2 layers, and also each have 10,000 frames.

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Does After Effects support APNG? Most browsers do.

https://en.wikipedia.org/wiki/APNG

This is not at all what it is for. Being an intermediary isn't even what png is for. Exr is made for it and can zip compress individual lines while having 16 or 32 bit floats per channel.

JPEG XL can do lossless compression of 16-bit or 32-bit (or even 24-bit and other custom float types) float data, just like EXR. It can do pretty fast encode/decode (for mezzanine use cases) and also (if you have time for encoding) it can do the densest lossless compression.

The point here is that EXR has taken care of being an intermediate format for 20 years but this person is using pngs and is hoping jpegxl fills the same slot of a solved problem.

> It can do pretty fast encode/decode (for mezzanine use cases)

I'm not sure what this means, but zipping individual lines takes care of the interactivity problem of working with compressed intermediary frames.

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