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A new PNG spec

(www.programmax.net)
618 points bluedel | 1 comments | 24 Jun 25 13:01 UTC | HN request time: 0.229s | source
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iliketrains ◴[25 Jun 25 07:01 UTC] No.44374365[source]▶
Official support for animations, yes! This feels so nostalgic to me, I have written an L-system generator with support for exporting animated PNGs 11 years ago! They were working only in Firefox, and Chrome used to have an extension for them. Too bad I had to take the website down.

Back then, there were no libraries in C# for it, but it's actually quite easy to make APNG from PNGs directly by writing chunks with correct headers, no encoders needed (assuming PNGs are already encoded as input).

https://github.com/NightElfik/Malsys/blob/master/src/Malsys....

https://marekfiser.com/projects/malsys-mareks-lsystems/

replies(1): >>44374538 #
1. chithanh ◴[25 Jun 25 07:28 UTC] No.44374538[source]▶
> Official support for animations, yes!

While I welcome that there is now PNG with animations, I am less impressed about how Mozilla chose to push for it.

Using PNG's magic numbers and pretend to existing software that it is just normal PNG? That is the same mindset that lead to HTML becoming tag soup. After all, HTML with a <blink> tag is still HTML, no?

I think they could have achieved animated PNG standardization much faster with a more humble and careful approach.